diff --git a/CHANGELOG.md b/CHANGELOG.md
index 8e72bcc..2f2fd51 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -2,6 +2,8 @@
 
 ## 0.17.0 (2022-XX-XX)
 
+- Added support for Tailscale TS2021 protocol [#738](https://github.com/juanfont/headscale/pull/738)
+
 ## 0.16.4 (2022-08-21)
 
 ### Changes
diff --git a/Dockerfile.tailscale-HEAD b/Dockerfile.tailscale-HEAD
index b62f7e2..c6e894d 100644
--- a/Dockerfile.tailscale-HEAD
+++ b/Dockerfile.tailscale-HEAD
@@ -7,7 +7,9 @@ RUN apt-get update \
 
 RUN git clone https://github.com/tailscale/tailscale.git
 
-WORKDIR tailscale
+WORKDIR /go/tailscale
+
+RUN git checkout main
 
 RUN sh build_dist.sh tailscale.com/cmd/tailscale
 RUN sh build_dist.sh tailscale.com/cmd/tailscaled
diff --git a/api.go b/api.go
index ac5f2a3..18ac72f 100644
--- a/api.go
+++ b/api.go
@@ -2,22 +2,13 @@ package headscale
 
 import (
 	"bytes"
-	"encoding/binary"
 	"encoding/json"
-	"errors"
-	"fmt"
 	"html/template"
-	"io"
 	"net/http"
-	"strings"
 	"time"
 
 	"github.com/gorilla/mux"
-	"github.com/klauspost/compress/zstd"
 	"github.com/rs/zerolog/log"
-	"gorm.io/gorm"
-	"tailscale.com/tailcfg"
-	"tailscale.com/types/key"
 )
 
 const (
@@ -70,23 +61,6 @@ func (h *Headscale) HealthHandler(
 	respond(nil)
 }
 
-// KeyHandler provides the Headscale pub key
-// Listens in /key.
-func (h *Headscale) KeyHandler(
-	writer http.ResponseWriter,
-	req *http.Request,
-) {
-	writer.Header().Set("Content-Type", "text/plain; charset=utf-8")
-	writer.WriteHeader(http.StatusOK)
-	_, err := writer.Write([]byte(MachinePublicKeyStripPrefix(h.privateKey.Public())))
-	if err != nil {
-		log.Error().
-			Caller().
-			Err(err).
-			Msg("Failed to write response")
-	}
-}
-
 type registerWebAPITemplateConfig struct {
 	Key string
 }
@@ -164,761 +138,3 @@ func (h *Headscale) RegisterWebAPI(
 			Msg("Failed to write response")
 	}
 }
-
-// RegistrationHandler handles the actual registration process of a machine
-// Endpoint /machine/:mkey.
-func (h *Headscale) RegistrationHandler(
-	writer http.ResponseWriter,
-	req *http.Request,
-) {
-	vars := mux.Vars(req)
-	machineKeyStr, ok := vars["mkey"]
-	if !ok || machineKeyStr == "" {
-		log.Error().
-			Str("handler", "RegistrationHandler").
-			Msg("No machine ID in request")
-		http.Error(writer, "No machine ID in request", http.StatusBadRequest)
-
-		return
-	}
-
-	body, _ := io.ReadAll(req.Body)
-
-	var machineKey key.MachinePublic
-	err := machineKey.UnmarshalText([]byte(MachinePublicKeyEnsurePrefix(machineKeyStr)))
-	if err != nil {
-		log.Error().
-			Caller().
-			Err(err).
-			Msg("Cannot parse machine key")
-		machineRegistrations.WithLabelValues("unknown", "web", "error", "unknown").Inc()
-		http.Error(writer, "Cannot parse machine key", http.StatusBadRequest)
-
-		return
-	}
-	registerRequest := tailcfg.RegisterRequest{}
-	err = decode(body, &registerRequest, &machineKey, h.privateKey)
-	if err != nil {
-		log.Error().
-			Caller().
-			Err(err).
-			Msg("Cannot decode message")
-		machineRegistrations.WithLabelValues("unknown", "web", "error", "unknown").Inc()
-		http.Error(writer, "Cannot decode message", http.StatusBadRequest)
-
-		return
-	}
-
-	now := time.Now().UTC()
-	machine, err := h.GetMachineByMachineKey(machineKey)
-	if errors.Is(err, gorm.ErrRecordNotFound) {
-		machineKeyStr := MachinePublicKeyStripPrefix(machineKey)
-
-		// If the machine has AuthKey set, handle registration via PreAuthKeys
-		if registerRequest.Auth.AuthKey != "" {
-			h.handleAuthKey(writer, req, machineKey, registerRequest)
-
-			return
-		}
-
-		// Check if the node is waiting for interactive login.
-		//
-		// TODO(juan): We could use this field to improve our protocol implementation,
-		// and hold the request until the client closes it, or the interactive
-		// login is completed (i.e., the user registers the machine).
-		// This is not implemented yet, as it is no strictly required. The only side-effect
-		// is that the client will hammer headscale with requests until it gets a
-		// successful RegisterResponse.
-		if registerRequest.Followup != "" {
-			if _, ok := h.registrationCache.Get(NodePublicKeyStripPrefix(registerRequest.NodeKey)); ok {
-				log.Debug().
-					Caller().
-					Str("machine", registerRequest.Hostinfo.Hostname).
-					Str("node_key", registerRequest.NodeKey.ShortString()).
-					Str("node_key_old", registerRequest.OldNodeKey.ShortString()).
-					Str("follow_up", registerRequest.Followup).
-					Msg("Machine is waiting for interactive login")
-
-				ticker := time.NewTicker(registrationHoldoff)
-				select {
-				case <-req.Context().Done():
-					return
-				case <-ticker.C:
-					h.handleMachineRegistrationNew(writer, req, machineKey, registerRequest)
-
-					return
-				}
-			}
-		}
-
-		log.Info().
-			Caller().
-			Str("machine", registerRequest.Hostinfo.Hostname).
-			Str("node_key", registerRequest.NodeKey.ShortString()).
-			Str("node_key_old", registerRequest.OldNodeKey.ShortString()).
-			Str("follow_up", registerRequest.Followup).
-			Msg("New machine not yet in the database")
-
-		givenName, err := h.GenerateGivenName(registerRequest.Hostinfo.Hostname)
-		if err != nil {
-			log.Error().
-				Caller().
-				Str("func", "RegistrationHandler").
-				Str("hostinfo.name", registerRequest.Hostinfo.Hostname).
-				Err(err)
-
-			return
-		}
-
-		// The machine did not have a key to authenticate, which means
-		// that we rely on a method that calls back some how (OpenID or CLI)
-		// We create the machine and then keep it around until a callback
-		// happens
-		newMachine := Machine{
-			MachineKey: machineKeyStr,
-			Hostname:   registerRequest.Hostinfo.Hostname,
-			GivenName:  givenName,
-			NodeKey:    NodePublicKeyStripPrefix(registerRequest.NodeKey),
-			LastSeen:   &now,
-			Expiry:     &time.Time{},
-		}
-
-		if !registerRequest.Expiry.IsZero() {
-			log.Trace().
-				Caller().
-				Str("machine", registerRequest.Hostinfo.Hostname).
-				Time("expiry", registerRequest.Expiry).
-				Msg("Non-zero expiry time requested")
-			newMachine.Expiry = &registerRequest.Expiry
-		}
-
-		h.registrationCache.Set(
-			newMachine.NodeKey,
-			newMachine,
-			registerCacheExpiration,
-		)
-
-		h.handleMachineRegistrationNew(writer, req, machineKey, registerRequest)
-
-		return
-	}
-
-	// The machine is already registered, so we need to pass through reauth or key update.
-	if machine != nil {
-		// If the NodeKey stored in headscale is the same as the key presented in a registration
-		// request, then we have a node that is either:
-		// - Trying to log out (sending a expiry in the past)
-		// - A valid, registered machine, looking for the node map
-		// - Expired machine wanting to reauthenticate
-		if machine.NodeKey == NodePublicKeyStripPrefix(registerRequest.NodeKey) {
-			// The client sends an Expiry in the past if the client is requesting to expire the key (aka logout)
-			//   https://github.com/tailscale/tailscale/blob/main/tailcfg/tailcfg.go#L648
-			if !registerRequest.Expiry.IsZero() &&
-				registerRequest.Expiry.UTC().Before(now) {
-				h.handleMachineLogOut(writer, req, machineKey, *machine)
-
-				return
-			}
-
-			// If machine is not expired, and is register, we have a already accepted this machine,
-			// let it proceed with a valid registration
-			if !machine.isExpired() {
-				h.handleMachineValidRegistration(writer, req, machineKey, *machine)
-
-				return
-			}
-		}
-
-		// The NodeKey we have matches OldNodeKey, which means this is a refresh after a key expiration
-		if machine.NodeKey == NodePublicKeyStripPrefix(registerRequest.OldNodeKey) &&
-			!machine.isExpired() {
-			h.handleMachineRefreshKey(
-				writer,
-				req,
-				machineKey,
-				registerRequest,
-				*machine,
-			)
-
-			return
-		}
-
-		// The machine has expired
-		h.handleMachineExpired(writer, req, machineKey, registerRequest, *machine)
-
-		machine.Expiry = &time.Time{}
-		h.registrationCache.Set(
-			NodePublicKeyStripPrefix(registerRequest.NodeKey),
-			*machine,
-			registerCacheExpiration,
-		)
-
-		return
-	}
-}
-
-func (h *Headscale) getMapResponse(
-	machineKey key.MachinePublic,
-	mapRequest tailcfg.MapRequest,
-	machine *Machine,
-) ([]byte, error) {
-	log.Trace().
-		Str("func", "getMapResponse").
-		Str("machine", mapRequest.Hostinfo.Hostname).
-		Msg("Creating Map response")
-	node, err := machine.toNode(h.cfg.BaseDomain, h.cfg.DNSConfig, true)
-	if err != nil {
-		log.Error().
-			Caller().
-			Str("func", "getMapResponse").
-			Err(err).
-			Msg("Cannot convert to node")
-
-		return nil, err
-	}
-
-	peers, err := h.getValidPeers(machine)
-	if err != nil {
-		log.Error().
-			Caller().
-			Str("func", "getMapResponse").
-			Err(err).
-			Msg("Cannot fetch peers")
-
-		return nil, err
-	}
-
-	profiles := getMapResponseUserProfiles(*machine, peers)
-
-	nodePeers, err := peers.toNodes(h.cfg.BaseDomain, h.cfg.DNSConfig, true)
-	if err != nil {
-		log.Error().
-			Caller().
-			Str("func", "getMapResponse").
-			Err(err).
-			Msg("Failed to convert peers to Tailscale nodes")
-
-		return nil, err
-	}
-
-	dnsConfig := getMapResponseDNSConfig(
-		h.cfg.DNSConfig,
-		h.cfg.BaseDomain,
-		*machine,
-		peers,
-	)
-
-	resp := tailcfg.MapResponse{
-		KeepAlive:    false,
-		Node:         node,
-		Peers:        nodePeers,
-		DNSConfig:    dnsConfig,
-		Domain:       h.cfg.BaseDomain,
-		PacketFilter: h.aclRules,
-		DERPMap:      h.DERPMap,
-		UserProfiles: profiles,
-		Debug: &tailcfg.Debug{
-			DisableLogTail:      !h.cfg.LogTail.Enabled,
-			RandomizeClientPort: h.cfg.RandomizeClientPort,
-		},
-	}
-
-	log.Trace().
-		Str("func", "getMapResponse").
-		Str("machine", mapRequest.Hostinfo.Hostname).
-		// Interface("payload", resp).
-		Msgf("Generated map response: %s", tailMapResponseToString(resp))
-
-	var respBody []byte
-	if mapRequest.Compress == "zstd" {
-		src, err := json.Marshal(resp)
-		if err != nil {
-			log.Error().
-				Caller().
-				Str("func", "getMapResponse").
-				Err(err).
-				Msg("Failed to marshal response for the client")
-
-			return nil, err
-		}
-
-		encoder, _ := zstd.NewWriter(nil)
-		srcCompressed := encoder.EncodeAll(src, nil)
-		respBody = h.privateKey.SealTo(machineKey, srcCompressed)
-	} else {
-		respBody, err = encode(resp, &machineKey, h.privateKey)
-		if err != nil {
-			return nil, err
-		}
-	}
-	// declare the incoming size on the first 4 bytes
-	data := make([]byte, reservedResponseHeaderSize)
-	binary.LittleEndian.PutUint32(data, uint32(len(respBody)))
-	data = append(data, respBody...)
-
-	return data, nil
-}
-
-func (h *Headscale) getMapKeepAliveResponse(
-	machineKey key.MachinePublic,
-	mapRequest tailcfg.MapRequest,
-) ([]byte, error) {
-	mapResponse := tailcfg.MapResponse{
-		KeepAlive: true,
-	}
-	var respBody []byte
-	var err error
-	if mapRequest.Compress == "zstd" {
-		src, err := json.Marshal(mapResponse)
-		if err != nil {
-			log.Error().
-				Caller().
-				Str("func", "getMapKeepAliveResponse").
-				Err(err).
-				Msg("Failed to marshal keepalive response for the client")
-
-			return nil, err
-		}
-		encoder, _ := zstd.NewWriter(nil)
-		srcCompressed := encoder.EncodeAll(src, nil)
-		respBody = h.privateKey.SealTo(machineKey, srcCompressed)
-	} else {
-		respBody, err = encode(mapResponse, &machineKey, h.privateKey)
-		if err != nil {
-			return nil, err
-		}
-	}
-	data := make([]byte, reservedResponseHeaderSize)
-	binary.LittleEndian.PutUint32(data, uint32(len(respBody)))
-	data = append(data, respBody...)
-
-	return data, nil
-}
-
-func (h *Headscale) handleMachineLogOut(
-	writer http.ResponseWriter,
-	req *http.Request,
-	machineKey key.MachinePublic,
-	machine Machine,
-) {
-	resp := tailcfg.RegisterResponse{}
-
-	log.Info().
-		Str("machine", machine.Hostname).
-		Msg("Client requested logout")
-
-	err := h.ExpireMachine(&machine)
-	if err != nil {
-		log.Error().
-			Caller().
-			Str("func", "handleMachineLogOut").
-			Err(err).
-			Msg("Failed to expire machine")
-		http.Error(writer, "Internal server error", http.StatusInternalServerError)
-
-		return
-	}
-
-	resp.AuthURL = ""
-	resp.MachineAuthorized = false
-	resp.User = *machine.Namespace.toUser()
-	respBody, err := encode(resp, &machineKey, h.privateKey)
-	if err != nil {
-		log.Error().
-			Caller().
-			Err(err).
-			Msg("Cannot encode message")
-		http.Error(writer, "Internal server error", http.StatusInternalServerError)
-
-		return
-	}
-
-	writer.Header().Set("Content-Type", "application/json; charset=utf-8")
-	writer.WriteHeader(http.StatusOK)
-	_, err = writer.Write(respBody)
-	if err != nil {
-		log.Error().
-			Caller().
-			Err(err).
-			Msg("Failed to write response")
-	}
-}
-
-func (h *Headscale) handleMachineValidRegistration(
-	writer http.ResponseWriter,
-	req *http.Request,
-	machineKey key.MachinePublic,
-	machine Machine,
-) {
-	resp := tailcfg.RegisterResponse{}
-
-	// The machine registration is valid, respond with redirect to /map
-	log.Debug().
-		Str("machine", machine.Hostname).
-		Msg("Client is registered and we have the current NodeKey. All clear to /map")
-
-	resp.AuthURL = ""
-	resp.MachineAuthorized = true
-	resp.User = *machine.Namespace.toUser()
-	resp.Login = *machine.Namespace.toLogin()
-
-	respBody, err := encode(resp, &machineKey, h.privateKey)
-	if err != nil {
-		log.Error().
-			Caller().
-			Err(err).
-			Msg("Cannot encode message")
-		machineRegistrations.WithLabelValues("update", "web", "error", machine.Namespace.Name).
-			Inc()
-		http.Error(writer, "Internal server error", http.StatusInternalServerError)
-
-		return
-	}
-	machineRegistrations.WithLabelValues("update", "web", "success", machine.Namespace.Name).
-		Inc()
-
-	writer.Header().Set("Content-Type", "application/json; charset=utf-8")
-	writer.WriteHeader(http.StatusOK)
-	_, err = writer.Write(respBody)
-	if err != nil {
-		log.Error().
-			Caller().
-			Err(err).
-			Msg("Failed to write response")
-	}
-}
-
-func (h *Headscale) handleMachineExpired(
-	writer http.ResponseWriter,
-	req *http.Request,
-	machineKey key.MachinePublic,
-	registerRequest tailcfg.RegisterRequest,
-	machine Machine,
-) {
-	resp := tailcfg.RegisterResponse{}
-
-	// The client has registered before, but has expired
-	log.Debug().
-		Str("machine", machine.Hostname).
-		Msg("Machine registration has expired. Sending a authurl to register")
-
-	if registerRequest.Auth.AuthKey != "" {
-		h.handleAuthKey(writer, req, machineKey, registerRequest)
-
-		return
-	}
-
-	if h.cfg.OIDC.Issuer != "" {
-		resp.AuthURL = fmt.Sprintf("%s/oidc/register/%s",
-			strings.TrimSuffix(h.cfg.ServerURL, "/"),
-			NodePublicKeyStripPrefix(registerRequest.NodeKey))
-	} else {
-		resp.AuthURL = fmt.Sprintf("%s/register/%s",
-			strings.TrimSuffix(h.cfg.ServerURL, "/"),
-			NodePublicKeyStripPrefix(registerRequest.NodeKey))
-	}
-
-	respBody, err := encode(resp, &machineKey, h.privateKey)
-	if err != nil {
-		log.Error().
-			Caller().
-			Err(err).
-			Msg("Cannot encode message")
-		machineRegistrations.WithLabelValues("reauth", "web", "error", machine.Namespace.Name).
-			Inc()
-		http.Error(writer, "Internal server error", http.StatusInternalServerError)
-
-		return
-	}
-	machineRegistrations.WithLabelValues("reauth", "web", "success", machine.Namespace.Name).
-		Inc()
-
-	writer.Header().Set("Content-Type", "application/json; charset=utf-8")
-	writer.WriteHeader(http.StatusOK)
-	_, err = writer.Write(respBody)
-	if err != nil {
-		log.Error().
-			Caller().
-			Err(err).
-			Msg("Failed to write response")
-	}
-}
-
-func (h *Headscale) handleMachineRefreshKey(
-	writer http.ResponseWriter,
-	req *http.Request,
-	machineKey key.MachinePublic,
-	registerRequest tailcfg.RegisterRequest,
-	machine Machine,
-) {
-	resp := tailcfg.RegisterResponse{}
-
-	log.Debug().
-		Str("machine", machine.Hostname).
-		Msg("We have the OldNodeKey in the database. This is a key refresh")
-	machine.NodeKey = NodePublicKeyStripPrefix(registerRequest.NodeKey)
-
-	if err := h.db.Save(&machine).Error; err != nil {
-		log.Error().
-			Caller().
-			Err(err).
-			Msg("Failed to update machine key in the database")
-		http.Error(writer, "Internal server error", http.StatusInternalServerError)
-
-		return
-	}
-
-	resp.AuthURL = ""
-	resp.User = *machine.Namespace.toUser()
-	respBody, err := encode(resp, &machineKey, h.privateKey)
-	if err != nil {
-		log.Error().
-			Caller().
-			Err(err).
-			Msg("Cannot encode message")
-		http.Error(writer, "Internal server error", http.StatusInternalServerError)
-
-		return
-	}
-
-	writer.Header().Set("Content-Type", "application/json; charset=utf-8")
-	writer.WriteHeader(http.StatusOK)
-	_, err = writer.Write(respBody)
-	if err != nil {
-		log.Error().
-			Caller().
-			Err(err).
-			Msg("Failed to write response")
-	}
-}
-
-func (h *Headscale) handleMachineRegistrationNew(
-	writer http.ResponseWriter,
-	req *http.Request,
-	machineKey key.MachinePublic,
-	registerRequest tailcfg.RegisterRequest,
-) {
-	resp := tailcfg.RegisterResponse{}
-
-	// The machine registration is new, redirect the client to the registration URL
-	log.Debug().
-		Str("machine", registerRequest.Hostinfo.Hostname).
-		Msg("The node seems to be new, sending auth url")
-	if h.cfg.OIDC.Issuer != "" {
-		resp.AuthURL = fmt.Sprintf(
-			"%s/oidc/register/%s",
-			strings.TrimSuffix(h.cfg.ServerURL, "/"),
-			NodePublicKeyStripPrefix(registerRequest.NodeKey),
-		)
-	} else {
-		resp.AuthURL = fmt.Sprintf("%s/register/%s",
-			strings.TrimSuffix(h.cfg.ServerURL, "/"),
-			NodePublicKeyStripPrefix(registerRequest.NodeKey))
-	}
-
-	respBody, err := encode(resp, &machineKey, h.privateKey)
-	if err != nil {
-		log.Error().
-			Caller().
-			Err(err).
-			Msg("Cannot encode message")
-		http.Error(writer, "Internal server error", http.StatusInternalServerError)
-
-		return
-	}
-
-	writer.Header().Set("Content-Type", "application/json; charset=utf-8")
-	writer.WriteHeader(http.StatusOK)
-	_, err = writer.Write(respBody)
-	if err != nil {
-		log.Error().
-			Caller().
-			Err(err).
-			Msg("Failed to write response")
-	}
-}
-
-// TODO: check if any locks are needed around IP allocation.
-func (h *Headscale) handleAuthKey(
-	writer http.ResponseWriter,
-	req *http.Request,
-	machineKey key.MachinePublic,
-	registerRequest tailcfg.RegisterRequest,
-) {
-	machineKeyStr := MachinePublicKeyStripPrefix(machineKey)
-
-	log.Debug().
-		Str("func", "handleAuthKey").
-		Str("machine", registerRequest.Hostinfo.Hostname).
-		Msgf("Processing auth key for %s", registerRequest.Hostinfo.Hostname)
-	resp := tailcfg.RegisterResponse{}
-
-	pak, err := h.checkKeyValidity(registerRequest.Auth.AuthKey)
-	if err != nil {
-		log.Error().
-			Caller().
-			Str("func", "handleAuthKey").
-			Str("machine", registerRequest.Hostinfo.Hostname).
-			Err(err).
-			Msg("Failed authentication via AuthKey")
-		resp.MachineAuthorized = false
-		respBody, err := encode(resp, &machineKey, h.privateKey)
-		if err != nil {
-			log.Error().
-				Caller().
-				Str("func", "handleAuthKey").
-				Str("machine", registerRequest.Hostinfo.Hostname).
-				Err(err).
-				Msg("Cannot encode message")
-			http.Error(writer, "Internal server error", http.StatusInternalServerError)
-			machineRegistrations.WithLabelValues("new", RegisterMethodAuthKey, "error", pak.Namespace.Name).
-				Inc()
-
-			return
-		}
-
-		writer.Header().Set("Content-Type", "application/json; charset=utf-8")
-		writer.WriteHeader(http.StatusUnauthorized)
-		_, err = writer.Write(respBody)
-		if err != nil {
-			log.Error().
-				Caller().
-				Err(err).
-				Msg("Failed to write response")
-		}
-
-		log.Error().
-			Caller().
-			Str("func", "handleAuthKey").
-			Str("machine", registerRequest.Hostinfo.Hostname).
-			Msg("Failed authentication via AuthKey")
-
-		if pak != nil {
-			machineRegistrations.WithLabelValues("new", RegisterMethodAuthKey, "error", pak.Namespace.Name).
-				Inc()
-		} else {
-			machineRegistrations.WithLabelValues("new", RegisterMethodAuthKey, "error", "unknown").Inc()
-		}
-
-		return
-	}
-
-	log.Debug().
-		Str("func", "handleAuthKey").
-		Str("machine", registerRequest.Hostinfo.Hostname).
-		Msg("Authentication key was valid, proceeding to acquire IP addresses")
-
-	nodeKey := NodePublicKeyStripPrefix(registerRequest.NodeKey)
-
-	// retrieve machine information if it exist
-	// The error is not important, because if it does not
-	// exist, then this is a new machine and we will move
-	// on to registration.
-	machine, _ := h.GetMachineByMachineKey(machineKey)
-	if machine != nil {
-		log.Trace().
-			Caller().
-			Str("machine", machine.Hostname).
-			Msg("machine already registered, refreshing with new auth key")
-
-		machine.NodeKey = nodeKey
-		machine.AuthKeyID = uint(pak.ID)
-		err := h.RefreshMachine(machine, registerRequest.Expiry)
-		if err != nil {
-			log.Error().
-				Caller().
-				Str("machine", machine.Hostname).
-				Err(err).
-				Msg("Failed to refresh machine")
-
-			return
-		}
-	} else {
-		now := time.Now().UTC()
-
-		givenName, err := h.GenerateGivenName(registerRequest.Hostinfo.Hostname)
-		if err != nil {
-			log.Error().
-				Caller().
-				Str("func", "RegistrationHandler").
-				Str("hostinfo.name", registerRequest.Hostinfo.Hostname).
-				Err(err)
-
-			return
-		}
-
-		machineToRegister := Machine{
-			Hostname:       registerRequest.Hostinfo.Hostname,
-			GivenName:      givenName,
-			NamespaceID:    pak.Namespace.ID,
-			MachineKey:     machineKeyStr,
-			RegisterMethod: RegisterMethodAuthKey,
-			Expiry:         &registerRequest.Expiry,
-			NodeKey:        nodeKey,
-			LastSeen:       &now,
-			AuthKeyID:      uint(pak.ID),
-		}
-
-		machine, err = h.RegisterMachine(
-			machineToRegister,
-		)
-		if err != nil {
-			log.Error().
-				Caller().
-				Err(err).
-				Msg("could not register machine")
-			machineRegistrations.WithLabelValues("new", RegisterMethodAuthKey, "error", pak.Namespace.Name).
-				Inc()
-			http.Error(writer, "Internal server error", http.StatusInternalServerError)
-
-			return
-		}
-	}
-
-	err = h.UsePreAuthKey(pak)
-	if err != nil {
-		log.Error().
-			Caller().
-			Err(err).
-			Msg("Failed to use pre-auth key")
-		machineRegistrations.WithLabelValues("new", RegisterMethodAuthKey, "error", pak.Namespace.Name).
-			Inc()
-		http.Error(writer, "Internal server error", http.StatusInternalServerError)
-
-		return
-	}
-
-	resp.MachineAuthorized = true
-	resp.User = *pak.Namespace.toUser()
-	respBody, err := encode(resp, &machineKey, h.privateKey)
-	if err != nil {
-		log.Error().
-			Caller().
-			Str("func", "handleAuthKey").
-			Str("machine", registerRequest.Hostinfo.Hostname).
-			Err(err).
-			Msg("Cannot encode message")
-		machineRegistrations.WithLabelValues("new", RegisterMethodAuthKey, "error", pak.Namespace.Name).
-			Inc()
-		http.Error(writer, "Internal server error", http.StatusInternalServerError)
-
-		return
-	}
-	machineRegistrations.WithLabelValues("new", RegisterMethodAuthKey, "success", pak.Namespace.Name).
-		Inc()
-	writer.Header().Set("Content-Type", "application/json; charset=utf-8")
-	writer.WriteHeader(http.StatusOK)
-	_, err = writer.Write(respBody)
-	if err != nil {
-		log.Error().
-			Caller().
-			Err(err).
-			Msg("Failed to write response")
-	}
-
-	log.Info().
-		Str("func", "handleAuthKey").
-		Str("machine", registerRequest.Hostinfo.Hostname).
-		Str("ips", strings.Join(machine.IPAddresses.ToStringSlice(), ", ")).
-		Msg("Successfully authenticated via AuthKey")
-}
diff --git a/api_common.go b/api_common.go
new file mode 100644
index 0000000..5ffbed0
--- /dev/null
+++ b/api_common.go
@@ -0,0 +1,80 @@
+package headscale
+
+import (
+	"github.com/rs/zerolog/log"
+	"tailscale.com/tailcfg"
+)
+
+func (h *Headscale) generateMapResponse(
+	mapRequest tailcfg.MapRequest,
+	machine *Machine,
+) (*tailcfg.MapResponse, error) {
+	log.Trace().
+		Str("func", "generateMapResponse").
+		Str("machine", mapRequest.Hostinfo.Hostname).
+		Msg("Creating Map response")
+	node, err := machine.toNode(h.cfg.BaseDomain, h.cfg.DNSConfig, true)
+	if err != nil {
+		log.Error().
+			Caller().
+			Str("func", "generateMapResponse").
+			Err(err).
+			Msg("Cannot convert to node")
+
+		return nil, err
+	}
+
+	peers, err := h.getValidPeers(machine)
+	if err != nil {
+		log.Error().
+			Caller().
+			Str("func", "generateMapResponse").
+			Err(err).
+			Msg("Cannot fetch peers")
+
+		return nil, err
+	}
+
+	profiles := getMapResponseUserProfiles(*machine, peers)
+
+	nodePeers, err := peers.toNodes(h.cfg.BaseDomain, h.cfg.DNSConfig, true)
+	if err != nil {
+		log.Error().
+			Caller().
+			Str("func", "generateMapResponse").
+			Err(err).
+			Msg("Failed to convert peers to Tailscale nodes")
+
+		return nil, err
+	}
+
+	dnsConfig := getMapResponseDNSConfig(
+		h.cfg.DNSConfig,
+		h.cfg.BaseDomain,
+		*machine,
+		peers,
+	)
+
+	resp := tailcfg.MapResponse{
+		KeepAlive:    false,
+		Node:         node,
+		Peers:        nodePeers,
+		DNSConfig:    dnsConfig,
+		Domain:       h.cfg.BaseDomain,
+		PacketFilter: h.aclRules,
+		DERPMap:      h.DERPMap,
+		UserProfiles: profiles,
+		Debug: &tailcfg.Debug{
+			DisableLogTail:      !h.cfg.LogTail.Enabled,
+			RandomizeClientPort: h.cfg.RandomizeClientPort,
+		},
+	}
+
+	log.Trace().
+		Str("func", "generateMapResponse").
+		Str("machine", mapRequest.Hostinfo.Hostname).
+		// Interface("payload", resp).
+		Msgf("Generated map response: %s", tailMapResponseToString(resp))
+
+	return &resp, nil
+}
diff --git a/app.go b/app.go
index 7ed9d2e..6e37fcd 100644
--- a/app.go
+++ b/app.go
@@ -51,6 +51,10 @@ const (
 	errUnsupportedLetsEncryptChallengeType = Error(
 		"unknown value for Lets Encrypt challenge type",
 	)
+
+	ErrFailedPrivateKey      = Error("failed to read or create private key")
+	ErrFailedNoisePrivateKey = Error("failed to read or create Noise protocol private key")
+	ErrSamePrivateKeys       = Error("private key and noise private key are the same")
 )
 
 const (
@@ -72,12 +76,15 @@ const (
 
 // Headscale represents the base app of the service.
 type Headscale struct {
-	cfg        *Config
-	db         *gorm.DB
-	dbString   string
-	dbType     string
-	dbDebug    bool
-	privateKey *key.MachinePrivate
+	cfg             *Config
+	db              *gorm.DB
+	dbString        string
+	dbType          string
+	dbDebug         bool
+	privateKey      *key.MachinePrivate
+	noisePrivateKey *key.MachinePrivate
+
+	noiseMux *mux.Router
 
 	DERPMap    *tailcfg.DERPMap
 	DERPServer *DERPServer
@@ -120,9 +127,19 @@ func LookupTLSClientAuthMode(mode string) (tls.ClientAuthType, bool) {
 }
 
 func NewHeadscale(cfg *Config) (*Headscale, error) {
-	privKey, err := readOrCreatePrivateKey(cfg.PrivateKeyPath)
+	privateKey, err := readOrCreatePrivateKey(cfg.PrivateKeyPath)
 	if err != nil {
-		return nil, fmt.Errorf("failed to read or create private key: %w", err)
+		return nil, ErrFailedPrivateKey
+	}
+
+	// TS2021 requires to have a different key from the legacy protocol.
+	noisePrivateKey, err := readOrCreatePrivateKey(cfg.NoisePrivateKeyPath)
+	if err != nil {
+		return nil, ErrFailedNoisePrivateKey
+	}
+
+	if privateKey.Equal(*noisePrivateKey) {
+		return nil, ErrSamePrivateKeys
 	}
 
 	var dbString string
@@ -161,7 +178,8 @@ func NewHeadscale(cfg *Config) (*Headscale, error) {
 		cfg:                cfg,
 		dbType:             cfg.DBtype,
 		dbString:           dbString,
-		privateKey:         privKey,
+		privateKey:         privateKey,
+		noisePrivateKey:    noisePrivateKey,
 		aclRules:           tailcfg.FilterAllowAll, // default allowall
 		registrationCache:  registrationCache,
 		pollNetMapStreamWG: sync.WaitGroup{},
@@ -257,7 +275,7 @@ func (h *Headscale) expireEphemeralNodesWorker() {
 		}
 
 		if expiredFound {
-			h.setLastStateChangeToNow(namespace.Name)
+			h.setLastStateChangeToNow()
 		}
 	}
 }
@@ -425,6 +443,8 @@ func (h *Headscale) ensureUnixSocketIsAbsent() error {
 func (h *Headscale) createRouter(grpcMux *runtime.ServeMux) *mux.Router {
 	router := mux.NewRouter()
 
+	router.HandleFunc(ts2021UpgradePath, h.NoiseUpgradeHandler).Methods(http.MethodPost)
+
 	router.HandleFunc("/health", h.HealthHandler).Methods(http.MethodGet)
 	router.HandleFunc("/key", h.KeyHandler).Methods(http.MethodGet)
 	router.HandleFunc("/register/{nkey}", h.RegisterWebAPI).Methods(http.MethodGet)
@@ -454,6 +474,15 @@ func (h *Headscale) createRouter(grpcMux *runtime.ServeMux) *mux.Router {
 	return router
 }
 
+func (h *Headscale) createNoiseMux() *mux.Router {
+	router := mux.NewRouter()
+
+	router.HandleFunc("/machine/register", h.NoiseRegistrationHandler).Methods(http.MethodPost)
+	router.HandleFunc("/machine/map", h.NoisePollNetMapHandler)
+
+	return router
+}
+
 // Serve launches a GIN server with the Headscale API.
 func (h *Headscale) Serve() error {
 	var err error
@@ -607,9 +636,16 @@ func (h *Headscale) Serve() error {
 	//
 	// HTTP setup
 	//
-
+	// This is the regular router that we expose
+	// over our main Addr. It also serves the legacy Tailcale API
 	router := h.createRouter(grpcGatewayMux)
 
+	// This router is served only over the Noise connection, and exposes only the new API.
+	//
+	// The HTTP2 server that exposes this router is created for
+	// a single hijacked connection from /ts2021, using netutil.NewOneConnListener
+	h.noiseMux = h.createNoiseMux()
+
 	httpServer := &http.Server{
 		Addr:        h.cfg.Addr,
 		Handler:     router,
diff --git a/cmd/headscale/cli/root.go b/cmd/headscale/cli/root.go
index 270ca55..2c28c58 100644
--- a/cmd/headscale/cli/root.go
+++ b/cmd/headscale/cli/root.go
@@ -28,12 +28,12 @@ func initConfig() {
 	if cfgFile != "" {
 		err := headscale.LoadConfig(cfgFile, true)
 		if err != nil {
-			log.Fatal().Caller().Err(err)
+			log.Fatal().Caller().Err(err).Msgf("Error loading config file %s", cfgFile)
 		}
 	} else {
 		err := headscale.LoadConfig("", false)
 		if err != nil {
-			log.Fatal().Caller().Err(err)
+			log.Fatal().Caller().Err(err).Msgf("Error loading config")
 		}
 	}
 
diff --git a/cmd/headscale/headscale_test.go b/cmd/headscale/headscale_test.go
index 917ae43..007d280 100644
--- a/cmd/headscale/headscale_test.go
+++ b/cmd/headscale/headscale_test.go
@@ -163,10 +163,12 @@ func (*Suite) TestTLSConfigValidation(c *check.C) {
 		c.Fatal(err)
 	}
 	// defer os.RemoveAll(tmpDir)
-
-	configYaml := []byte(
-		"---\ntls_letsencrypt_hostname: \"example.com\"\ntls_letsencrypt_challenge_type: \"\"\ntls_cert_path: \"abc.pem\"",
-	)
+	configYaml := []byte(`---
+tls_letsencrypt_hostname: example.com
+tls_letsencrypt_challenge_type: ""
+tls_cert_path: abc.pem
+noise:
+  private_key_path: noise_private.key`)
 	writeConfig(c, tmpDir, configYaml)
 
 	// Check configuration validation errors (1)
@@ -191,9 +193,13 @@ func (*Suite) TestTLSConfigValidation(c *check.C) {
 	)
 
 	// Check configuration validation errors (2)
-	configYaml = []byte(
-		"---\nserver_url: \"http://127.0.0.1:8080\"\ntls_letsencrypt_hostname: \"example.com\"\ntls_letsencrypt_challenge_type: \"TLS-ALPN-01\"",
-	)
+	configYaml = []byte(`---
+noise:
+  private_key_path: noise_private.key
+server_url: http://127.0.0.1:8080
+tls_letsencrypt_hostname: example.com
+tls_letsencrypt_challenge_type: TLS-ALPN-01
+`)
 	writeConfig(c, tmpDir, configYaml)
 	err = headscale.LoadConfig(tmpDir, false)
 	c.Assert(err, check.IsNil)
diff --git a/config-example.yaml b/config-example.yaml
index b369029..2019a13 100644
--- a/config-example.yaml
+++ b/config-example.yaml
@@ -41,6 +41,15 @@ grpc_allow_insecure: false
 # autogenerated if it's missing
 private_key_path: /var/lib/headscale/private.key
 
+# The Noise section includes specific configuration for the
+# TS2021 Noise procotol
+noise:
+  # The Noise private key is used to encrypt the
+  # traffic between headscale and Tailscale clients when
+  # using the new Noise-based protocol. It must be different
+  # from the legacy private key.
+  private_key_path: /var/lib/headscale/noise_private.key
+
 # List of IP prefixes to allocate tailaddresses from.
 # Each prefix consists of either an IPv4 or IPv6 address,
 # and the associated prefix length, delimited by a slash.
diff --git a/config.go b/config.go
index 3c241b2..0024731 100644
--- a/config.go
+++ b/config.go
@@ -34,6 +34,7 @@ type Config struct {
 	NodeUpdateCheckInterval        time.Duration
 	IPPrefixes                     []netaddr.IPPrefix
 	PrivateKeyPath                 string
+	NoisePrivateKeyPath            string
 	BaseDomain                     string
 	LogLevel                       zerolog.Level
 	DisableUpdateCheck             bool
@@ -184,6 +185,10 @@ func LoadConfig(path string, isFile bool) error {
 		errorText += "Fatal config error: set either tls_letsencrypt_hostname or tls_cert_path/tls_key_path, not both\n"
 	}
 
+	if !viper.IsSet("noise") || viper.GetString("noise.private_key_path") == "" {
+		errorText += "Fatal config error: headscale now requires a new `noise.private_key_path` field in the config file for the Tailscale v2 protocol\n"
+	}
+
 	if (viper.GetString("tls_letsencrypt_hostname") != "") &&
 		(viper.GetString("tls_letsencrypt_challenge_type") == tlsALPN01ChallengeType) &&
 		(!strings.HasSuffix(viper.GetString("listen_addr"), ":443")) {
@@ -488,6 +493,9 @@ func GetHeadscaleConfig() (*Config, error) {
 		PrivateKeyPath: AbsolutePathFromConfigPath(
 			viper.GetString("private_key_path"),
 		),
+		NoisePrivateKeyPath: AbsolutePathFromConfigPath(
+			viper.GetString("noise.private_key_path"),
+		),
 		BaseDomain: baseDomain,
 
 		DERP: derpConfig,
diff --git a/docs/running-headscale-container.md b/docs/running-headscale-container.md
index b36f3bb..d341bb7 100644
--- a/docs/running-headscale-container.md
+++ b/docs/running-headscale-container.md
@@ -53,6 +53,9 @@ server_url: http://your-host-name:8080 # Change to your hostname or host IP
 metrics_listen_addr: 0.0.0.0:9090
 # The default /var/lib/headscale path is not writable in the container
 private_key_path: /etc/headscale/private.key
+# The default /var/lib/headscale path is not writable in the container
+noise:
+  private_key_path: /var/lib/headscale/noise_private.key
 # The default /var/lib/headscale path is not writable  in the container
 db_path: /etc/headscale/db.sqlite
 ```
diff --git a/flake.nix b/flake.nix
index 0e8bdc9..62631bf 100644
--- a/flake.nix
+++ b/flake.nix
@@ -24,7 +24,7 @@
 
               # When updating go.mod or go.sum, a new sha will need to be calculated,
               # update this if you have a mismatch after doing a change to thos files.
-              vendorSha256 = "sha256-RzmnAh81BN4tbzAGzJbb6CMuws8kuPJDw7aPkRRnSS8=";
+              vendorSha256 = "sha256-paDdPsi5OfxsmgX7c5NSDSLYDipFqxxcxV3K4Tc77nQ=";
 
               ldflags = [ "-s" "-w" "-X github.com/juanfont/headscale/cmd/headscale/cli.Version=v${version}" ];
             };
diff --git a/go.mod b/go.mod
index c01a9ff..c934a46 100644
--- a/go.mod
+++ b/go.mod
@@ -28,6 +28,7 @@ require (
 	github.com/tailscale/hujson v0.0.0-20220630195928-54599719472f
 	github.com/tcnksm/go-latest v0.0.0-20170313132115-e3007ae9052e
 	golang.org/x/crypto v0.0.0-20220722155217-630584e8d5aa
+	golang.org/x/net v0.0.0-20220624214902-1bab6f366d9e
 	golang.org/x/oauth2 v0.0.0-20220808172628-8227340efae7
 	golang.org/x/sync v0.0.0-20220722155255-886fb9371eb4
 	google.golang.org/genproto v0.0.0-20220808204814-fd01256a5276
@@ -63,6 +64,7 @@ require (
 	github.com/fsnotify/fsnotify v1.5.4 // indirect
 	github.com/glebarez/go-sqlite v1.17.3 // indirect
 	github.com/gogo/protobuf v1.3.2 // indirect
+	github.com/golang/groupcache v0.0.0-20210331224755-41bb18bfe9da // indirect
 	github.com/golang/protobuf v1.5.2 // indirect
 	github.com/google/go-cmp v0.5.8 // indirect
 	github.com/google/go-github v17.0.0+incompatible // indirect
@@ -126,7 +128,6 @@ require (
 	go4.org/intern v0.0.0-20211027215823-ae77deb06f29 // indirect
 	go4.org/mem v0.0.0-20210711025021-927187094b94 // indirect
 	go4.org/unsafe/assume-no-moving-gc v0.0.0-20220617031537-928513b29760 // indirect
-	golang.org/x/net v0.0.0-20220624214902-1bab6f366d9e // indirect
 	golang.org/x/sys v0.0.0-20220610221304-9f5ed59c137d // indirect
 	golang.org/x/term v0.0.0-20220411215600-e5f449aeb171 // indirect
 	golang.org/x/text v0.3.7 // indirect
@@ -139,4 +140,5 @@ require (
 	modernc.org/mathutil v1.4.1 // indirect
 	modernc.org/memory v1.1.1 // indirect
 	modernc.org/sqlite v1.17.3 // indirect
+	nhooyr.io/websocket v1.8.7 // indirect
 )
diff --git a/go.sum b/go.sum
index 7b245ca..6870e45 100644
--- a/go.sum
+++ b/go.sum
@@ -56,6 +56,7 @@ cloud.google.com/go/storage v1.10.0/go.mod h1:FLPqc6j+Ki4BU591ie1oL6qBQGu2Bl/tZ9
 cloud.google.com/go/storage v1.14.0/go.mod h1:GrKmX003DSIwi9o29oFT7YDnHYwZoctc3fOKtUw0Xmo=
 contrib.go.opencensus.io/exporter/stackdriver v0.13.4/go.mod h1:aXENhDJ1Y4lIg4EUaVTwzvYETVNZk10Pu26tevFKLUc=
 dmitri.shuralyov.com/gpu/mtl v0.0.0-20190408044501-666a987793e9/go.mod h1:H6x//7gZCb22OMCxBHrMx7a5I7Hp++hsVxbQ4BYO7hU=
+filippo.io/mkcert v1.4.3 h1:axpnmtrZMM8u5Hf4N3UXxboGemMOV+Tn+e+pkHM6E3o=
 github.com/AlecAivazis/survey/v2 v2.3.5 h1:A8cYupsAZkjaUmhtTYv3sSqc7LO5mp1XDfqe5E/9wRQ=
 github.com/AlecAivazis/survey/v2 v2.3.5/go.mod h1:4AuI9b7RjAR+G7v9+C4YSlX/YL3K3cWNXgWXOhllqvI=
 github.com/Antonboom/errname v0.1.5/go.mod h1:DugbBstvPFQbv/5uLcRRzfrNqKE9tVdVCqWCLp6Cifo=
@@ -64,6 +65,7 @@ github.com/Azure/go-ansiterm v0.0.0-20170929234023-d6e3b3328b78 h1:w+iIsaOQNcT7O
 github.com/Azure/go-ansiterm v0.0.0-20170929234023-d6e3b3328b78/go.mod h1:LmzpDX56iTiv29bbRTIsUNlaFfuhWRQBWjQdVyAevI8=
 github.com/BurntSushi/toml v0.3.1/go.mod h1:xHWCNGjB5oqiDr8zfno3MHue2Ht5sIBksp03qcyfWMU=
 github.com/BurntSushi/toml v0.4.1/go.mod h1:CxXYINrC8qIiEnFrOxCa7Jy5BFHlXnUU2pbicEuybxQ=
+github.com/BurntSushi/toml v1.1.0 h1:ksErzDEI1khOiGPgpwuI7x2ebx/uXQNw7xJpn9Eq1+I=
 github.com/BurntSushi/xgb v0.0.0-20160522181843-27f122750802/go.mod h1:IVnqGOEym/WlBOVXweHU+Q+/VP0lqqI8lqeDx9IjBqo=
 github.com/Djarvur/go-err113 v0.0.0-20210108212216-aea10b59be24/go.mod h1:4UJr5HIiMZrwgkSPdsjy2uOQExX/WEILpIrO9UPGuXs=
 github.com/MarvinJWendt/testza v0.1.0/go.mod h1:7AxNvlfeHP7Z/hDQ5JtE3OKYT3XFUeLCDE2DQninSqs=
@@ -236,6 +238,10 @@ github.com/fsnotify/fsnotify v1.5.4/go.mod h1:OVB6XrOHzAwXMpEM7uPOzcehqUV2UqJxmV
 github.com/fullstorydev/grpcurl v1.6.0/go.mod h1:ZQ+ayqbKMJNhzLmbpCiurTVlaK2M/3nqZCxaQ2Ze/sM=
 github.com/fzipp/gocyclo v0.3.1/go.mod h1:DJHO6AUmbdqj2ET4Z9iArSuwWgYDRryYt2wASxc7x3E=
 github.com/ghodss/yaml v1.0.0/go.mod h1:4dBDuWmgqj2HViK6kFavaiC9ZROes6MMH2rRYeMEF04=
+github.com/gin-contrib/sse v0.1.0 h1:Y/yl/+YNO8GZSjAhjMsSuLt29uWRFHdHYUb5lYOV9qE=
+github.com/gin-contrib/sse v0.1.0/go.mod h1:RHrZQHXnP2xjPF+u1gW/2HnVO7nvIa9PG3Gm+fLHvGI=
+github.com/gin-gonic/gin v1.6.3 h1:ahKqKTFpO5KTPHxWZjEdPScmYaGtLo8Y4DMHoEsnp14=
+github.com/gin-gonic/gin v1.6.3/go.mod h1:75u5sXoLsGZoRN5Sgbi1eraJ4GU3++wFwWzhwvtwp4M=
 github.com/glebarez/go-sqlite v1.17.3 h1:Rji9ROVSTTfjuWD6j5B+8DtkNvPILoUC3xRhkQzGxvk=
 github.com/glebarez/go-sqlite v1.17.3/go.mod h1:Hg+PQuhUy98XCxWEJEaWob8x7lhJzhNYF1nZbUiRGIY=
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@@ -254,6 +260,13 @@ github.com/go-logfmt/logfmt v0.5.0/go.mod h1:wCYkCAKZfumFQihp8CzCvQ3paCTfi41vtzG
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@@ -273,6 +286,12 @@ github.com/go-toolsmith/typep v1.0.0/go.mod h1:JSQCQMUPdRlMZFswiq3TGpNp1GMktqkR2
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@@ -291,6 +310,8 @@ github.com/golang/groupcache v0.0.0-20160516000752-02826c3e7903/go.mod h1:cIg4er
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@@ -398,6 +419,7 @@ github.com/gorhill/cronexpr v0.0.0-20180427100037-88b0669f7d75/go.mod h1:g2644b0
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@@ -538,8 +560,10 @@ github.com/jsimonetti/rtnetlink v1.1.2-0.20220408201609-d380b505068b h1:Yws7RV6k
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@@ -556,6 +580,7 @@ github.com/kisielk/errcheck v1.2.0/go.mod h1:/BMXB+zMLi60iA8Vv6Ksmxu/1UDYcXs4uQL
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@@ -585,6 +610,8 @@ github.com/kylelemons/godebug v1.1.0/go.mod h1:9/0rRGxNHcop5bhtWyNeEfOS8JIWk580+
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@@ -675,9 +702,11 @@ github.com/moby/sys/mountinfo v0.5.0/go.mod h1:3bMD3Rg+zkqx8MRYPi7Pyb0Ie97QEBmdx
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@@ -918,7 +947,11 @@ github.com/tmc/grpc-websocket-proxy v0.0.0-20200427203606-3cfed13b9966/go.mod h1
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@@ -1023,7 +1056,9 @@ golang.org/x/exp v0.0.0-20191227195350-da58074b4299/go.mod h1:2RIsYlXP63K8oxa1u0
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@@ -1050,6 +1085,7 @@ golang.org/x/mod v0.4.0/go.mod h1:s0Qsj1ACt9ePp/hMypM3fl4fZqREWJwdYDEqhRiZZUA=
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@@ -1374,6 +1410,7 @@ golang.org/x/tools v0.1.4/go.mod h1:o0xws9oXOQQZyjljx8fwUC0k7L1pTE6eaCbjGeHmOkk=
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@@ -1582,6 +1619,8 @@ honnef.co/go/tools v0.0.1-2019.2.3/go.mod h1:a3bituU0lyd329TUQxRnasdCoJDkEUEAqEt
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+honnef.co/go/tools v0.4.0-0.dev.0.20220404092545-59d7a2877f83 h1:lZ9GIYaU+o5+X6ST702I/Ntyq9Y2oIMZ42rBQpem64A=
+howett.net/plist v1.0.0 h1:7CrbWYbPPO/PyNy38b2EB/+gYbjCe2DXBxgtOOZbSQM=
 inet.af/netaddr v0.0.0-20220617031823-097006376321 h1:B4dC8ySKTQXasnjDTMsoCMf1sQG4WsMej0WXaHxunmU=
 inet.af/netaddr v0.0.0-20220617031823-097006376321/go.mod h1:OIezDfdzOgFhuw4HuWapWq2e9l0H9tK4F1j+ETRtF3k=
 lukechampine.com/uint128 v1.1.1/go.mod h1:c4eWIwlEGaxC/+H1VguhU4PHXNWDCDMUlWdIWl2j1gk=
@@ -1614,9 +1653,12 @@ mvdan.cc/gofumpt v0.1.1/go.mod h1:yXG1r1WqZVKWbVRtBWKWX9+CxGYfA51nSomhM0woR48=
 mvdan.cc/interfacer v0.0.0-20180901003855-c20040233aed/go.mod h1:Xkxe497xwlCKkIaQYRfC7CSLworTXY9RMqwhhCm+8Nc=
 mvdan.cc/lint v0.0.0-20170908181259-adc824a0674b/go.mod h1:2odslEg/xrtNQqCYg2/jCoyKnw3vv5biOc3JnIcYfL4=
 mvdan.cc/unparam v0.0.0-20210104141923-aac4ce9116a7/go.mod h1:hBpJkZE8H/sb+VRFvw2+rBpHNsTBcvSpk61hr8mzXZE=
+nhooyr.io/websocket v1.8.7 h1:usjR2uOr/zjjkVMy0lW+PPohFok7PCow5sDjLgX4P4g=
+nhooyr.io/websocket v1.8.7/go.mod h1:B70DZP8IakI65RVQ51MsWP/8jndNma26DVA/nFSCgW0=
 rsc.io/binaryregexp v0.2.0/go.mod h1:qTv7/COck+e2FymRvadv62gMdZztPaShugOCi3I+8D8=
 rsc.io/quote/v3 v3.1.0/go.mod h1:yEA65RcK8LyAZtP9Kv3t0HmxON59tX3rD+tICJqUlj0=
 rsc.io/sampler v1.3.0/go.mod h1:T1hPZKmBbMNahiBKFy5HrXp6adAjACjK9JXDnKaTXpA=
 sigs.k8s.io/yaml v1.1.0/go.mod h1:UJmg0vDUVViEyp3mgSv9WPwZCDxu4rQW1olrI1uml+o=
+software.sslmate.com/src/go-pkcs12 v0.0.0-20210415151418-c5206de65a78 h1:SqYE5+A2qvRhErbsXFfUEUmpWEKxxRSMgGLkvRAFOV4=
 tailscale.com v1.28.0 h1:eW5bJMqw6eu7YUjBcgJY94uIcm5Zv+xpyTxxa7ztZOM=
 tailscale.com v1.28.0/go.mod h1:T9uKhlkxVPdSu1Qvp882evcS/hQ1+TAyZ7sJ/VACGRI=
diff --git a/integration_general_test.go b/integration_general_test.go
index d4c64c3..9f2ca3e 100644
--- a/integration_general_test.go
+++ b/integration_general_test.go
@@ -562,13 +562,25 @@ func (s *IntegrationTestSuite) TestTailDrop() {
 				if peername == hostname {
 					continue
 				}
+
+				var ip4 netaddr.IP
+				for _, ip := range ips[peername] {
+					if ip.Is4() {
+						ip4 = ip
+						break
+					}
+				}
+				if ip4.IsZero() {
+					panic("no ipv4 address found")
+				}
+
 				s.T().Run(fmt.Sprintf("%s-%s", hostname, peername), func(t *testing.T) {
 					command := []string{
 						"tailscale", "file", "cp",
 						fmt.Sprintf("/tmp/file_from_%s", hostname),
-						fmt.Sprintf("%s:", ips[peername][1]),
+						fmt.Sprintf("%s:", ip4),
 					}
-					retry(10, 1*time.Second, func() error {
+					err := retry(10, 1*time.Second, func() error {
 						log.Printf(
 							"Sending file from %s to %s\n",
 							hostname,
@@ -582,6 +594,7 @@ func (s *IntegrationTestSuite) TestTailDrop() {
 						)
 						return err
 					})
+
 					assert.Nil(t, err)
 				})
 			}
@@ -683,6 +696,18 @@ func (s *IntegrationTestSuite) TestMagicDNS() {
 		ips, err := getIPs(scales.tailscales)
 		assert.Nil(s.T(), err)
 
+		retry := func(times int, sleepInverval time.Duration, doWork func() (string, error)) (result string, err error) {
+			for attempts := 0; attempts < times; attempts++ {
+				result, err = doWork()
+				if err == nil {
+					return
+				}
+				time.Sleep(sleepInverval)
+			}
+
+			return
+		}
+
 		for hostname, tailscale := range scales.tailscales {
 			for _, peername := range hostnames {
 				if strings.Contains(peername, hostname) {
@@ -693,17 +718,20 @@ func (s *IntegrationTestSuite) TestMagicDNS() {
 					command := []string{
 						"tailscale", "ip", peername,
 					}
+					result, err := retry(10, 1*time.Second, func() (string, error) {
+						log.Printf(
+							"Resolving name %s from %s\n",
+							peername,
+							hostname,
+						)
+						result, err := ExecuteCommand(
+							&tailscale,
+							command,
+							[]string{},
+						)
+						return result, err
+					})
 
-					log.Printf(
-						"Resolving name %s from %s\n",
-						peername,
-						hostname,
-					)
-					result, err := ExecuteCommand(
-						&tailscale,
-						command,
-						[]string{},
-					)
 					assert.Nil(t, err)
 					log.Printf("Result for %s: %s\n", hostname, result)
 
diff --git a/integration_test/etc/alt-config.dump.gold.yaml b/integration_test/etc/alt-config.dump.gold.yaml
index e893423..3d38b12 100644
--- a/integration_test/etc/alt-config.dump.gold.yaml
+++ b/integration_test/etc/alt-config.dump.gold.yaml
@@ -18,6 +18,7 @@ dns_config:
   domains: []
   magic_dns: true
   nameservers:
+    - 127.0.0.11
     - 1.1.1.1
 ephemeral_node_inactivity_timeout: 30m
 node_update_check_interval: 10s
@@ -38,6 +39,8 @@ oidc:
     - email
   strip_email_domain: true
 private_key_path: private.key
+noise:
+  private_key_path: noise_private.key
 server_url: http://headscale:18080
 tls_client_auth_mode: relaxed
 tls_letsencrypt_cache_dir: /var/www/.cache
diff --git a/integration_test/etc/alt-config.yaml b/integration_test/etc/alt-config.yaml
index fa1bfcb..179fdcd 100644
--- a/integration_test/etc/alt-config.yaml
+++ b/integration_test/etc/alt-config.yaml
@@ -11,9 +11,12 @@ dns_config:
   magic_dns: true
   domains: []
   nameservers:
+    - 127.0.0.11
     - 1.1.1.1
 db_path: /tmp/integration_test_db.sqlite3
 private_key_path: private.key
+noise:
+  private_key_path: noise_private.key
 listen_addr: 0.0.0.0:18080
 metrics_listen_addr: 127.0.0.1:19090
 server_url: http://headscale:18080
diff --git a/integration_test/etc/config.dump.gold.yaml b/integration_test/etc/config.dump.gold.yaml
index 17bb0ca..91ca5b9 100644
--- a/integration_test/etc/config.dump.gold.yaml
+++ b/integration_test/etc/config.dump.gold.yaml
@@ -18,6 +18,7 @@ dns_config:
   domains: []
   magic_dns: true
   nameservers:
+    - 127.0.0.11
     - 1.1.1.1
 ephemeral_node_inactivity_timeout: 30m
 node_update_check_interval: 10s
@@ -38,6 +39,8 @@ oidc:
     - email
   strip_email_domain: true
 private_key_path: private.key
+noise:
+  private_key_path: noise_private.key
 server_url: http://headscale:8080
 tls_client_auth_mode: relaxed
 tls_letsencrypt_cache_dir: /var/www/.cache
diff --git a/integration_test/etc/config.yaml b/integration_test/etc/config.yaml
index e6b34af..da842cc 100644
--- a/integration_test/etc/config.yaml
+++ b/integration_test/etc/config.yaml
@@ -11,9 +11,12 @@ dns_config:
   magic_dns: true
   domains: []
   nameservers:
+    - 127.0.0.11
     - 1.1.1.1
 db_path: /tmp/integration_test_db.sqlite3
 private_key_path: private.key
+noise:
+  private_key_path: noise_private.key
 listen_addr: 0.0.0.0:8080
 metrics_listen_addr: 127.0.0.1:9090
 server_url: http://headscale:8080
diff --git a/integration_test/etc_embedded_derp/config.yaml b/integration_test/etc_embedded_derp/config.yaml
index e6ad3b0..ed4d51a 100644
--- a/integration_test/etc_embedded_derp/config.yaml
+++ b/integration_test/etc_embedded_derp/config.yaml
@@ -14,8 +14,10 @@ dns_config:
     - 1.1.1.1
 db_path: /tmp/integration_test_db.sqlite3
 private_key_path: private.key
-listen_addr: 0.0.0.0:8443
-server_url: https://headscale:8443
+noise:
+  private_key_path: noise_private.key
+listen_addr: 0.0.0.0:443
+server_url: https://headscale:443
 tls_cert_path: "/etc/headscale/tls/server.crt"
 tls_key_path: "/etc/headscale/tls/server.key"
 tls_client_auth_mode: disabled
diff --git a/machine.go b/machine.go
index 1a48a3e..4399029 100644
--- a/machine.go
+++ b/machine.go
@@ -245,8 +245,8 @@ func (h *Headscale) ListPeers(machine *Machine) (Machines, error) {
 		Msg("Finding direct peers")
 
 	machines := Machines{}
-	if err := h.db.Preload("AuthKey").Preload("AuthKey.Namespace").Preload("Namespace").Where("machine_key <> ?",
-		machine.MachineKey).Find(&machines).Error; err != nil {
+	if err := h.db.Preload("AuthKey").Preload("AuthKey.Namespace").Preload("Namespace").Where("node_key <> ?",
+		machine.NodeKey).Find(&machines).Error; err != nil {
 		log.Error().Err(err).Msg("Error accessing db")
 
 		return Machines{}, err
@@ -376,6 +376,19 @@ func (h *Headscale) GetMachineByNodeKey(
 	return &machine, nil
 }
 
+// GetMachineByAnyNodeKey finds a Machine by its current NodeKey or the old one, and returns the Machine struct.
+func (h *Headscale) GetMachineByAnyNodeKey(
+	nodeKey key.NodePublic, oldNodeKey key.NodePublic,
+) (*Machine, error) {
+	machine := Machine{}
+	if result := h.db.Preload("Namespace").First(&machine, "node_key = ? OR node_key = ?",
+		NodePublicKeyStripPrefix(nodeKey), NodePublicKeyStripPrefix(oldNodeKey)); result.Error != nil {
+		return nil, result.Error
+	}
+
+	return &machine, nil
+}
+
 // UpdateMachineFromDatabase takes a Machine struct pointer (typically already loaded from database
 // and updates it with the latest data from the database.
 func (h *Headscale) UpdateMachineFromDatabase(machine *Machine) error {
@@ -398,7 +411,7 @@ func (h *Headscale) SetTags(machine *Machine, tags []string) error {
 	if err := h.UpdateACLRules(); err != nil && !errors.Is(err, errEmptyPolicy) {
 		return err
 	}
-	h.setLastStateChangeToNow(machine.Namespace.Name)
+	h.setLastStateChangeToNow()
 
 	if err := h.db.Save(machine).Error; err != nil {
 		return fmt.Errorf("failed to update tags for machine in the database: %w", err)
@@ -412,7 +425,7 @@ func (h *Headscale) ExpireMachine(machine *Machine) error {
 	now := time.Now()
 	machine.Expiry = &now
 
-	h.setLastStateChangeToNow(machine.Namespace.Name)
+	h.setLastStateChangeToNow()
 
 	if err := h.db.Save(machine).Error; err != nil {
 		return fmt.Errorf("failed to expire machine in the database: %w", err)
@@ -439,7 +452,7 @@ func (h *Headscale) RenameMachine(machine *Machine, newName string) error {
 	}
 	machine.GivenName = newName
 
-	h.setLastStateChangeToNow(machine.Namespace.Name)
+	h.setLastStateChangeToNow()
 
 	if err := h.db.Save(machine).Error; err != nil {
 		return fmt.Errorf("failed to rename machine in the database: %w", err)
@@ -455,7 +468,7 @@ func (h *Headscale) RefreshMachine(machine *Machine, expiry time.Time) error {
 	machine.LastSuccessfulUpdate = &now
 	machine.Expiry = &expiry
 
-	h.setLastStateChangeToNow(machine.Namespace.Name)
+	h.setLastStateChangeToNow()
 
 	if err := h.db.Save(machine).Error; err != nil {
 		return fmt.Errorf(
@@ -588,11 +601,14 @@ func (machine Machine) toNode(
 	}
 
 	var machineKey key.MachinePublic
-	err = machineKey.UnmarshalText(
-		[]byte(MachinePublicKeyEnsurePrefix(machine.MachineKey)),
-	)
-	if err != nil {
-		return nil, fmt.Errorf("failed to parse machine public key: %w", err)
+	// MachineKey is only used in the legacy protocol
+	if machine.MachineKey != "" {
+		err = machineKey.UnmarshalText(
+			[]byte(MachinePublicKeyEnsurePrefix(machine.MachineKey)),
+		)
+		if err != nil {
+			return nil, fmt.Errorf("failed to parse machine public key: %w", err)
+		}
 	}
 
 	var discoKey key.DiscoPublic
diff --git a/machine_test.go b/machine_test.go
index 53d065f..5da0906 100644
--- a/machine_test.go
+++ b/machine_test.go
@@ -11,6 +11,7 @@ import (
 	"gopkg.in/check.v1"
 	"inet.af/netaddr"
 	"tailscale.com/tailcfg"
+	"tailscale.com/types/key"
 )
 
 func (s *Suite) TestGetMachine(c *check.C) {
@@ -65,6 +66,63 @@ func (s *Suite) TestGetMachineByID(c *check.C) {
 	c.Assert(err, check.IsNil)
 }
 
+func (s *Suite) TestGetMachineByNodeKey(c *check.C) {
+	namespace, err := app.CreateNamespace("test")
+	c.Assert(err, check.IsNil)
+
+	pak, err := app.CreatePreAuthKey(namespace.Name, false, false, nil)
+	c.Assert(err, check.IsNil)
+
+	_, err = app.GetMachineByID(0)
+	c.Assert(err, check.NotNil)
+
+	nodeKey := key.NewNode()
+
+	machine := Machine{
+		ID:             0,
+		MachineKey:     "foo",
+		NodeKey:        NodePublicKeyStripPrefix(nodeKey.Public()),
+		DiscoKey:       "faa",
+		Hostname:       "testmachine",
+		NamespaceID:    namespace.ID,
+		RegisterMethod: RegisterMethodAuthKey,
+		AuthKeyID:      uint(pak.ID),
+	}
+	app.db.Save(&machine)
+
+	_, err = app.GetMachineByNodeKey(nodeKey.Public())
+	c.Assert(err, check.IsNil)
+}
+
+func (s *Suite) TestGetMachineByAnyNodeKey(c *check.C) {
+	namespace, err := app.CreateNamespace("test")
+	c.Assert(err, check.IsNil)
+
+	pak, err := app.CreatePreAuthKey(namespace.Name, false, false, nil)
+	c.Assert(err, check.IsNil)
+
+	_, err = app.GetMachineByID(0)
+	c.Assert(err, check.NotNil)
+
+	nodeKey := key.NewNode()
+	oldNodeKey := key.NewNode()
+
+	machine := Machine{
+		ID:             0,
+		MachineKey:     "foo",
+		NodeKey:        NodePublicKeyStripPrefix(nodeKey.Public()),
+		DiscoKey:       "faa",
+		Hostname:       "testmachine",
+		NamespaceID:    namespace.ID,
+		RegisterMethod: RegisterMethodAuthKey,
+		AuthKeyID:      uint(pak.ID),
+	}
+	app.db.Save(&machine)
+
+	_, err = app.GetMachineByAnyNodeKey(nodeKey.Public(), oldNodeKey.Public())
+	c.Assert(err, check.IsNil)
+}
+
 func (s *Suite) TestDeleteMachine(c *check.C) {
 	namespace, err := app.CreateNamespace("test")
 	c.Assert(err, check.IsNil)
diff --git a/noise.go b/noise.go
new file mode 100644
index 0000000..c8e6674
--- /dev/null
+++ b/noise.go
@@ -0,0 +1,40 @@
+package headscale
+
+import (
+	"net/http"
+
+	"github.com/rs/zerolog/log"
+	"golang.org/x/net/http2"
+	"golang.org/x/net/http2/h2c"
+	"tailscale.com/control/controlhttp"
+	"tailscale.com/net/netutil"
+)
+
+const (
+	// ts2021UpgradePath is the path that the server listens on for the WebSockets upgrade.
+	ts2021UpgradePath = "/ts2021"
+)
+
+// NoiseUpgradeHandler is to upgrade the connection and hijack the net.Conn
+// in order to use the Noise-based TS2021 protocol. Listens in /ts2021.
+func (h *Headscale) NoiseUpgradeHandler(
+	writer http.ResponseWriter,
+	req *http.Request,
+) {
+	log.Trace().Caller().Msgf("Noise upgrade handler for client %s", req.RemoteAddr)
+
+	noiseConn, err := controlhttp.AcceptHTTP(req.Context(), writer, req, *h.noisePrivateKey)
+	if err != nil {
+		log.Error().Err(err).Msg("noise upgrade failed")
+		http.Error(writer, err.Error(), http.StatusInternalServerError)
+
+		return
+	}
+
+	server := http.Server{}
+	server.Handler = h2c.NewHandler(h.noiseMux, &http2.Server{})
+	err = server.Serve(netutil.NewOneConnListener(noiseConn, nil))
+	if err != nil {
+		log.Info().Err(err).Msg("The HTTP2 server was closed")
+	}
+}
diff --git a/protocol_common.go b/protocol_common.go
new file mode 100644
index 0000000..154c14c
--- /dev/null
+++ b/protocol_common.go
@@ -0,0 +1,749 @@
+package headscale
+
+import (
+	"encoding/json"
+	"errors"
+	"fmt"
+	"net/http"
+	"strconv"
+	"strings"
+	"time"
+
+	"github.com/rs/zerolog/log"
+	"gorm.io/gorm"
+	"tailscale.com/tailcfg"
+	"tailscale.com/types/key"
+)
+
+const (
+	// The CapabilityVersion is used by Tailscale clients to indicate
+	// their codebase version. Tailscale clients can communicate over TS2021
+	// from CapabilityVersion 28, but we only have good support for it
+	// since https://github.com/tailscale/tailscale/pull/4323 (Noise in any HTTPS port).
+	//
+	// Related to this change, there is https://github.com/tailscale/tailscale/pull/5379,
+	// where CapabilityVersion 39 is introduced to indicate #4323 was merged.
+	//
+	// See also https://github.com/tailscale/tailscale/blob/main/tailcfg/tailcfg.go
+	NoiseCapabilityVersion = 39
+)
+
+// KeyHandler provides the Headscale pub key
+// Listens in /key.
+func (h *Headscale) KeyHandler(
+	writer http.ResponseWriter,
+	req *http.Request,
+) {
+	// New Tailscale clients send a 'v' parameter to indicate the CurrentCapabilityVersion
+	clientCapabilityStr := req.URL.Query().Get("v")
+	if clientCapabilityStr != "" {
+		log.Debug().
+			Str("handler", "/key").
+			Str("v", clientCapabilityStr).
+			Msg("New noise client")
+		clientCapabilityVersion, err := strconv.Atoi(clientCapabilityStr)
+		if err != nil {
+			writer.Header().Set("Content-Type", "text/plain; charset=utf-8")
+			writer.WriteHeader(http.StatusBadRequest)
+			_, err := writer.Write([]byte("Wrong params"))
+			if err != nil {
+				log.Error().
+					Caller().
+					Err(err).
+					Msg("Failed to write response")
+			}
+
+			return
+		}
+
+		// TS2021 (Tailscale v2 protocol) requires to have a different key
+		if clientCapabilityVersion >= NoiseCapabilityVersion {
+			resp := tailcfg.OverTLSPublicKeyResponse{
+				LegacyPublicKey: h.privateKey.Public(),
+				PublicKey:       h.noisePrivateKey.Public(),
+			}
+			writer.Header().Set("Content-Type", "application/json")
+			writer.WriteHeader(http.StatusOK)
+			err = json.NewEncoder(writer).Encode(resp)
+			if err != nil {
+				log.Error().
+					Caller().
+					Err(err).
+					Msg("Failed to write response")
+			}
+
+			return
+		}
+	}
+	log.Debug().
+		Str("handler", "/key").
+		Msg("New legacy client")
+
+	// Old clients don't send a 'v' parameter, so we send the legacy public key
+	writer.Header().Set("Content-Type", "text/plain; charset=utf-8")
+	writer.WriteHeader(http.StatusOK)
+	_, err := writer.Write([]byte(MachinePublicKeyStripPrefix(h.privateKey.Public())))
+	if err != nil {
+		log.Error().
+			Caller().
+			Err(err).
+			Msg("Failed to write response")
+	}
+}
+
+// handleRegisterCommon is the common logic for registering a client in the legacy and Noise protocols
+//
+// When using Noise, the machineKey is Zero.
+func (h *Headscale) handleRegisterCommon(
+	writer http.ResponseWriter,
+	req *http.Request,
+	registerRequest tailcfg.RegisterRequest,
+	machineKey key.MachinePublic,
+) {
+	now := time.Now().UTC()
+	machine, err := h.GetMachineByAnyNodeKey(registerRequest.NodeKey, registerRequest.OldNodeKey)
+	if errors.Is(err, gorm.ErrRecordNotFound) {
+		// If the machine has AuthKey set, handle registration via PreAuthKeys
+		if registerRequest.Auth.AuthKey != "" {
+			h.handleAuthKeyCommon(writer, req, registerRequest, machineKey)
+
+			return
+		}
+
+		// Check if the node is waiting for interactive login.
+		//
+		// TODO(juan): We could use this field to improve our protocol implementation,
+		// and hold the request until the client closes it, or the interactive
+		// login is completed (i.e., the user registers the machine).
+		// This is not implemented yet, as it is no strictly required. The only side-effect
+		// is that the client will hammer headscale with requests until it gets a
+		// successful RegisterResponse.
+		if registerRequest.Followup != "" {
+			if _, ok := h.registrationCache.Get(NodePublicKeyStripPrefix(registerRequest.NodeKey)); ok {
+				log.Debug().
+					Caller().
+					Str("machine", registerRequest.Hostinfo.Hostname).
+					Str("node_key", registerRequest.NodeKey.ShortString()).
+					Str("node_key_old", registerRequest.OldNodeKey.ShortString()).
+					Str("follow_up", registerRequest.Followup).
+					Bool("noise", machineKey.IsZero()).
+					Msg("Machine is waiting for interactive login")
+
+				ticker := time.NewTicker(registrationHoldoff)
+				select {
+				case <-req.Context().Done():
+					return
+				case <-ticker.C:
+					h.handleNewMachineCommon(writer, req, registerRequest, machineKey)
+
+					return
+				}
+			}
+		}
+
+		log.Info().
+			Caller().
+			Str("machine", registerRequest.Hostinfo.Hostname).
+			Str("node_key", registerRequest.NodeKey.ShortString()).
+			Str("node_key_old", registerRequest.OldNodeKey.ShortString()).
+			Str("follow_up", registerRequest.Followup).
+			Bool("noise", machineKey.IsZero()).
+			Msg("New machine not yet in the database")
+
+		givenName, err := h.GenerateGivenName(registerRequest.Hostinfo.Hostname)
+		if err != nil {
+			log.Error().
+				Caller().
+				Str("func", "RegistrationHandler").
+				Str("hostinfo.name", registerRequest.Hostinfo.Hostname).
+				Err(err)
+
+			return
+		}
+
+		// The machine did not have a key to authenticate, which means
+		// that we rely on a method that calls back some how (OpenID or CLI)
+		// We create the machine and then keep it around until a callback
+		// happens
+		newMachine := Machine{
+			MachineKey: MachinePublicKeyStripPrefix(machineKey),
+			Hostname:   registerRequest.Hostinfo.Hostname,
+			GivenName:  givenName,
+			NodeKey:    NodePublicKeyStripPrefix(registerRequest.NodeKey),
+			LastSeen:   &now,
+			Expiry:     &time.Time{},
+		}
+
+		if !registerRequest.Expiry.IsZero() {
+			log.Trace().
+				Caller().
+				Bool("noise", machineKey.IsZero()).
+				Str("machine", registerRequest.Hostinfo.Hostname).
+				Time("expiry", registerRequest.Expiry).
+				Msg("Non-zero expiry time requested")
+			newMachine.Expiry = &registerRequest.Expiry
+		}
+
+		h.registrationCache.Set(
+			newMachine.NodeKey,
+			newMachine,
+			registerCacheExpiration,
+		)
+
+		h.handleNewMachineCommon(writer, req, registerRequest, machineKey)
+
+		return
+	}
+
+	// The machine is already registered, so we need to pass through reauth or key update.
+	if machine != nil {
+		// If the NodeKey stored in headscale is the same as the key presented in a registration
+		// request, then we have a node that is either:
+		// - Trying to log out (sending a expiry in the past)
+		// - A valid, registered machine, looking for the node map
+		// - Expired machine wanting to reauthenticate
+		if machine.NodeKey == NodePublicKeyStripPrefix(registerRequest.NodeKey) {
+			// The client sends an Expiry in the past if the client is requesting to expire the key (aka logout)
+			//   https://github.com/tailscale/tailscale/blob/main/tailcfg/tailcfg.go#L648
+			if !registerRequest.Expiry.IsZero() &&
+				registerRequest.Expiry.UTC().Before(now) {
+				h.handleMachineLogOutCommon(writer, req, *machine, machineKey)
+
+				return
+			}
+
+			// If machine is not expired, and is register, we have a already accepted this machine,
+			// let it proceed with a valid registration
+			if !machine.isExpired() {
+				h.handleMachineValidRegistrationCommon(writer, req, *machine, machineKey)
+
+				return
+			}
+		}
+
+		// The NodeKey we have matches OldNodeKey, which means this is a refresh after a key expiration
+		if machine.NodeKey == NodePublicKeyStripPrefix(registerRequest.OldNodeKey) &&
+			!machine.isExpired() {
+			h.handleMachineRefreshKeyCommon(
+				writer,
+				req,
+				registerRequest,
+				*machine,
+				machineKey,
+			)
+
+			return
+		}
+
+		// The machine has expired
+		h.handleMachineExpiredCommon(writer, req, registerRequest, *machine, machineKey)
+
+		machine.Expiry = &time.Time{}
+		h.registrationCache.Set(
+			NodePublicKeyStripPrefix(registerRequest.NodeKey),
+			*machine,
+			registerCacheExpiration,
+		)
+
+		return
+	}
+}
+
+// handleAuthKeyCommon contains the logic to manage auth key client registration
+// It is used both by the legacy and the new Noise protocol.
+// When using Noise, the machineKey is Zero.
+//
+// TODO: check if any locks are needed around IP allocation.
+func (h *Headscale) handleAuthKeyCommon(
+	writer http.ResponseWriter,
+	req *http.Request,
+	registerRequest tailcfg.RegisterRequest,
+	machineKey key.MachinePublic,
+) {
+	log.Debug().
+		Str("func", "handleAuthKeyCommon").
+		Str("machine", registerRequest.Hostinfo.Hostname).
+		Bool("noise", machineKey.IsZero()).
+		Msgf("Processing auth key for %s", registerRequest.Hostinfo.Hostname)
+	resp := tailcfg.RegisterResponse{}
+
+	pak, err := h.checkKeyValidity(registerRequest.Auth.AuthKey)
+	if err != nil {
+		log.Error().
+			Caller().
+			Str("func", "handleAuthKeyCommon").
+			Bool("noise", machineKey.IsZero()).
+			Str("machine", registerRequest.Hostinfo.Hostname).
+			Err(err).
+			Msg("Failed authentication via AuthKey")
+		resp.MachineAuthorized = false
+
+		respBody, err := h.marshalResponse(resp, machineKey)
+		if err != nil {
+			log.Error().
+				Caller().
+				Str("func", "handleAuthKeyCommon").
+				Bool("noise", machineKey.IsZero()).
+				Str("machine", registerRequest.Hostinfo.Hostname).
+				Err(err).
+				Msg("Cannot encode message")
+			http.Error(writer, "Internal server error", http.StatusInternalServerError)
+			machineRegistrations.WithLabelValues("new", RegisterMethodAuthKey, "error", pak.Namespace.Name).
+				Inc()
+
+			return
+		}
+
+		writer.Header().Set("Content-Type", "application/json; charset=utf-8")
+		writer.WriteHeader(http.StatusUnauthorized)
+		_, err = writer.Write(respBody)
+		if err != nil {
+			log.Error().
+				Caller().
+				Bool("noise", machineKey.IsZero()).
+				Err(err).
+				Msg("Failed to write response")
+		}
+
+		log.Error().
+			Caller().
+			Str("func", "handleAuthKeyCommon").
+			Bool("noise", machineKey.IsZero()).
+			Str("machine", registerRequest.Hostinfo.Hostname).
+			Msg("Failed authentication via AuthKey")
+
+		if pak != nil {
+			machineRegistrations.WithLabelValues("new", RegisterMethodAuthKey, "error", pak.Namespace.Name).
+				Inc()
+		} else {
+			machineRegistrations.WithLabelValues("new", RegisterMethodAuthKey, "error", "unknown").Inc()
+		}
+
+		return
+	}
+
+	log.Debug().
+		Str("func", "handleAuthKeyCommon").
+		Bool("noise", machineKey.IsZero()).
+		Str("machine", registerRequest.Hostinfo.Hostname).
+		Msg("Authentication key was valid, proceeding to acquire IP addresses")
+
+	nodeKey := NodePublicKeyStripPrefix(registerRequest.NodeKey)
+
+	// retrieve machine information if it exist
+	// The error is not important, because if it does not
+	// exist, then this is a new machine and we will move
+	// on to registration.
+	machine, _ := h.GetMachineByAnyNodeKey(registerRequest.NodeKey, registerRequest.OldNodeKey)
+	if machine != nil {
+		log.Trace().
+			Caller().
+			Bool("noise", machineKey.IsZero()).
+			Str("machine", machine.Hostname).
+			Msg("machine was already registered before, refreshing with new auth key")
+
+		machine.NodeKey = nodeKey
+		machine.AuthKeyID = uint(pak.ID)
+		err := h.RefreshMachine(machine, registerRequest.Expiry)
+		if err != nil {
+			log.Error().
+				Caller().
+				Bool("noise", machineKey.IsZero()).
+				Str("machine", machine.Hostname).
+				Err(err).
+				Msg("Failed to refresh machine")
+
+			return
+		}
+	} else {
+		now := time.Now().UTC()
+
+		givenName, err := h.GenerateGivenName(registerRequest.Hostinfo.Hostname)
+		if err != nil {
+			log.Error().
+				Caller().
+				Bool("noise", machineKey.IsZero()).
+				Str("func", "RegistrationHandler").
+				Str("hostinfo.name", registerRequest.Hostinfo.Hostname).
+				Err(err)
+
+			return
+		}
+
+		machineToRegister := Machine{
+			Hostname:       registerRequest.Hostinfo.Hostname,
+			GivenName:      givenName,
+			NamespaceID:    pak.Namespace.ID,
+			MachineKey:     MachinePublicKeyStripPrefix(machineKey),
+			RegisterMethod: RegisterMethodAuthKey,
+			Expiry:         &registerRequest.Expiry,
+			NodeKey:        nodeKey,
+			LastSeen:       &now,
+			AuthKeyID:      uint(pak.ID),
+		}
+
+		machine, err = h.RegisterMachine(
+			machineToRegister,
+		)
+		if err != nil {
+			log.Error().
+				Caller().
+				Bool("noise", machineKey.IsZero()).
+				Err(err).
+				Msg("could not register machine")
+			machineRegistrations.WithLabelValues("new", RegisterMethodAuthKey, "error", pak.Namespace.Name).
+				Inc()
+			http.Error(writer, "Internal server error", http.StatusInternalServerError)
+
+			return
+		}
+	}
+
+	err = h.UsePreAuthKey(pak)
+	if err != nil {
+		log.Error().
+			Caller().
+			Bool("noise", machineKey.IsZero()).
+			Err(err).
+			Msg("Failed to use pre-auth key")
+		machineRegistrations.WithLabelValues("new", RegisterMethodAuthKey, "error", pak.Namespace.Name).
+			Inc()
+		http.Error(writer, "Internal server error", http.StatusInternalServerError)
+
+		return
+	}
+
+	resp.MachineAuthorized = true
+	resp.User = *pak.Namespace.toUser()
+	respBody, err := h.marshalResponse(resp, machineKey)
+	if err != nil {
+		log.Error().
+			Caller().
+			Bool("noise", machineKey.IsZero()).
+			Str("func", "handleAuthKeyCommon").
+			Str("machine", registerRequest.Hostinfo.Hostname).
+			Err(err).
+			Msg("Cannot encode message")
+		machineRegistrations.WithLabelValues("new", RegisterMethodAuthKey, "error", pak.Namespace.Name).
+			Inc()
+		http.Error(writer, "Internal server error", http.StatusInternalServerError)
+
+		return
+	}
+	machineRegistrations.WithLabelValues("new", RegisterMethodAuthKey, "success", pak.Namespace.Name).
+		Inc()
+	writer.Header().Set("Content-Type", "application/json; charset=utf-8")
+	writer.WriteHeader(http.StatusOK)
+	_, err = writer.Write(respBody)
+	if err != nil {
+		log.Error().
+			Caller().
+			Bool("noise", machineKey.IsZero()).
+			Err(err).
+			Msg("Failed to write response")
+	}
+
+	log.Info().
+		Str("func", "handleAuthKeyCommon").
+		Bool("noise", machineKey.IsZero()).
+		Str("machine", registerRequest.Hostinfo.Hostname).
+		Str("ips", strings.Join(machine.IPAddresses.ToStringSlice(), ", ")).
+		Msg("Successfully authenticated via AuthKey")
+}
+
+// handleNewMachineCommon exposes for both legacy and Noise the functionality to get a URL
+// for authorizing the machine. This url is then showed to the user by the local Tailscale client.
+func (h *Headscale) handleNewMachineCommon(
+	writer http.ResponseWriter,
+	req *http.Request,
+	registerRequest tailcfg.RegisterRequest,
+	machineKey key.MachinePublic,
+) {
+	resp := tailcfg.RegisterResponse{}
+
+	// The machine registration is new, redirect the client to the registration URL
+	log.Debug().
+		Caller().
+		Bool("noise", machineKey.IsZero()).
+		Str("machine", registerRequest.Hostinfo.Hostname).
+		Msg("The node seems to be new, sending auth url")
+	if h.cfg.OIDC.Issuer != "" {
+		resp.AuthURL = fmt.Sprintf(
+			"%s/oidc/register/%s",
+			strings.TrimSuffix(h.cfg.ServerURL, "/"),
+			NodePublicKeyStripPrefix(registerRequest.NodeKey),
+		)
+	} else {
+		resp.AuthURL = fmt.Sprintf("%s/register/%s",
+			strings.TrimSuffix(h.cfg.ServerURL, "/"),
+			NodePublicKeyStripPrefix(registerRequest.NodeKey))
+	}
+
+	respBody, err := h.marshalResponse(resp, machineKey)
+	if err != nil {
+		log.Error().
+			Caller().
+			Bool("noise", machineKey.IsZero()).
+			Err(err).
+			Msg("Cannot encode message")
+		http.Error(writer, "Internal server error", http.StatusInternalServerError)
+
+		return
+	}
+
+	writer.Header().Set("Content-Type", "application/json; charset=utf-8")
+	writer.WriteHeader(http.StatusOK)
+	_, err = writer.Write(respBody)
+	if err != nil {
+		log.Error().
+			Bool("noise", machineKey.IsZero()).
+			Caller().
+			Err(err).
+			Msg("Failed to write response")
+	}
+
+	log.Info().
+		Caller().
+		Bool("noise", machineKey.IsZero()).
+		Str("machine", registerRequest.Hostinfo.Hostname).
+		Msg("Successfully sent auth url")
+}
+
+func (h *Headscale) handleMachineLogOutCommon(
+	writer http.ResponseWriter,
+	req *http.Request,
+	machine Machine,
+	machineKey key.MachinePublic,
+) {
+	resp := tailcfg.RegisterResponse{}
+
+	log.Info().
+		Bool("noise", machineKey.IsZero()).
+		Str("machine", machine.Hostname).
+		Msg("Client requested logout")
+
+	err := h.ExpireMachine(&machine)
+	if err != nil {
+		log.Error().
+			Caller().
+			Bool("noise", machineKey.IsZero()).
+			Str("func", "handleMachineLogOutCommon").
+			Err(err).
+			Msg("Failed to expire machine")
+		http.Error(writer, "Internal server error", http.StatusInternalServerError)
+
+		return
+	}
+
+	resp.AuthURL = ""
+	resp.MachineAuthorized = false
+	resp.User = *machine.Namespace.toUser()
+	respBody, err := h.marshalResponse(resp, machineKey)
+	if err != nil {
+		log.Error().
+			Caller().
+			Bool("noise", machineKey.IsZero()).
+			Err(err).
+			Msg("Cannot encode message")
+		http.Error(writer, "Internal server error", http.StatusInternalServerError)
+
+		return
+	}
+
+	writer.Header().Set("Content-Type", "application/json; charset=utf-8")
+	writer.WriteHeader(http.StatusOK)
+	_, err = writer.Write(respBody)
+	if err != nil {
+		log.Error().
+			Bool("noise", machineKey.IsZero()).
+			Caller().
+			Err(err).
+			Msg("Failed to write response")
+	}
+
+	log.Info().
+		Caller().
+		Bool("noise", machineKey.IsZero()).
+		Str("machine", machine.Hostname).
+		Msg("Successfully logged out")
+}
+
+func (h *Headscale) handleMachineValidRegistrationCommon(
+	writer http.ResponseWriter,
+	req *http.Request,
+	machine Machine,
+	machineKey key.MachinePublic,
+) {
+	resp := tailcfg.RegisterResponse{}
+
+	// The machine registration is valid, respond with redirect to /map
+	log.Debug().
+		Caller().
+		Bool("noise", machineKey.IsZero()).
+		Str("machine", machine.Hostname).
+		Msg("Client is registered and we have the current NodeKey. All clear to /map")
+
+	resp.AuthURL = ""
+	resp.MachineAuthorized = true
+	resp.User = *machine.Namespace.toUser()
+	resp.Login = *machine.Namespace.toLogin()
+
+	respBody, err := h.marshalResponse(resp, machineKey)
+	if err != nil {
+		log.Error().
+			Caller().
+			Bool("noise", machineKey.IsZero()).
+			Err(err).
+			Msg("Cannot encode message")
+		machineRegistrations.WithLabelValues("update", "web", "error", machine.Namespace.Name).
+			Inc()
+		http.Error(writer, "Internal server error", http.StatusInternalServerError)
+
+		return
+	}
+	machineRegistrations.WithLabelValues("update", "web", "success", machine.Namespace.Name).
+		Inc()
+
+	writer.Header().Set("Content-Type", "application/json; charset=utf-8")
+	writer.WriteHeader(http.StatusOK)
+	_, err = writer.Write(respBody)
+	if err != nil {
+		log.Error().
+			Caller().
+			Bool("noise", machineKey.IsZero()).
+			Err(err).
+			Msg("Failed to write response")
+	}
+
+	log.Info().
+		Caller().
+		Bool("noise", machineKey.IsZero()).
+		Str("machine", machine.Hostname).
+		Msg("Machine successfully authorized")
+}
+
+func (h *Headscale) handleMachineRefreshKeyCommon(
+	writer http.ResponseWriter,
+	req *http.Request,
+	registerRequest tailcfg.RegisterRequest,
+	machine Machine,
+	machineKey key.MachinePublic,
+) {
+	resp := tailcfg.RegisterResponse{}
+
+	log.Debug().
+		Caller().
+		Bool("noise", machineKey.IsZero()).
+		Str("machine", machine.Hostname).
+		Msg("We have the OldNodeKey in the database. This is a key refresh")
+	machine.NodeKey = NodePublicKeyStripPrefix(registerRequest.NodeKey)
+
+	if err := h.db.Save(&machine).Error; err != nil {
+		log.Error().
+			Caller().
+			Err(err).
+			Msg("Failed to update machine key in the database")
+		http.Error(writer, "Internal server error", http.StatusInternalServerError)
+
+		return
+	}
+
+	resp.AuthURL = ""
+	resp.User = *machine.Namespace.toUser()
+	respBody, err := h.marshalResponse(resp, machineKey)
+	if err != nil {
+		log.Error().
+			Caller().
+			Bool("noise", machineKey.IsZero()).
+			Err(err).
+			Msg("Cannot encode message")
+		http.Error(writer, "Internal server error", http.StatusInternalServerError)
+
+		return
+	}
+
+	writer.Header().Set("Content-Type", "application/json; charset=utf-8")
+	writer.WriteHeader(http.StatusOK)
+	_, err = writer.Write(respBody)
+	if err != nil {
+		log.Error().
+			Caller().
+			Bool("noise", machineKey.IsZero()).
+			Err(err).
+			Msg("Failed to write response")
+	}
+
+	log.Info().
+		Caller().
+		Bool("noise", machineKey.IsZero()).
+		Str("node_key", registerRequest.NodeKey.ShortString()).
+		Str("old_node_key", registerRequest.OldNodeKey.ShortString()).
+		Str("machine", machine.Hostname).
+		Msg("Machine successfully refreshed")
+}
+
+func (h *Headscale) handleMachineExpiredCommon(
+	writer http.ResponseWriter,
+	req *http.Request,
+	registerRequest tailcfg.RegisterRequest,
+	machine Machine,
+	machineKey key.MachinePublic,
+) {
+	resp := tailcfg.RegisterResponse{}
+
+	// The client has registered before, but has expired
+	log.Debug().
+		Caller().
+		Bool("noise", machineKey.IsZero()).
+		Str("machine", machine.Hostname).
+		Msg("Machine registration has expired. Sending a authurl to register")
+
+	if registerRequest.Auth.AuthKey != "" {
+		h.handleAuthKeyCommon(writer, req, registerRequest, machineKey)
+
+		return
+	}
+
+	if h.cfg.OIDC.Issuer != "" {
+		resp.AuthURL = fmt.Sprintf("%s/oidc/register/%s",
+			strings.TrimSuffix(h.cfg.ServerURL, "/"),
+			NodePublicKeyStripPrefix(registerRequest.NodeKey))
+	} else {
+		resp.AuthURL = fmt.Sprintf("%s/register/%s",
+			strings.TrimSuffix(h.cfg.ServerURL, "/"),
+			NodePublicKeyStripPrefix(registerRequest.NodeKey))
+	}
+
+	respBody, err := h.marshalResponse(resp, machineKey)
+	if err != nil {
+		log.Error().
+			Caller().
+			Bool("noise", machineKey.IsZero()).
+			Err(err).
+			Msg("Cannot encode message")
+		machineRegistrations.WithLabelValues("reauth", "web", "error", machine.Namespace.Name).
+			Inc()
+		http.Error(writer, "Internal server error", http.StatusInternalServerError)
+
+		return
+	}
+	machineRegistrations.WithLabelValues("reauth", "web", "success", machine.Namespace.Name).
+		Inc()
+
+	writer.Header().Set("Content-Type", "application/json; charset=utf-8")
+	writer.WriteHeader(http.StatusOK)
+	_, err = writer.Write(respBody)
+	if err != nil {
+		log.Error().
+			Caller().
+			Bool("noise", machineKey.IsZero()).
+			Err(err).
+			Msg("Failed to write response")
+	}
+
+	log.Info().
+		Caller().
+		Bool("noise", machineKey.IsZero()).
+		Str("machine", machine.Hostname).
+		Msg("Auth URL for reauthenticate successfully sent")
+}
diff --git a/poll.go b/protocol_common_poll.go
similarity index 83%
rename from poll.go
rename to protocol_common_poll.go
index 9c17b5c..65dcb55 100644
--- a/poll.go
+++ b/protocol_common_poll.go
@@ -2,17 +2,12 @@ package headscale
 
 import (
 	"context"
-	"errors"
 	"fmt"
-	"io"
 	"net/http"
 	"time"
 
-	"github.com/gorilla/mux"
 	"github.com/rs/zerolog/log"
-	"gorm.io/gorm"
 	"tailscale.com/tailcfg"
-	"tailscale.com/types/key"
 )
 
 const (
@@ -23,83 +18,15 @@ type contextKey string
 
 const machineNameContextKey = contextKey("machineName")
 
-// PollNetMapHandler takes care of /machine/:id/map
-//
-// This is the busiest endpoint, as it keeps the HTTP long poll that updates
-// the clients when something in the network changes.
-//
-// The clients POST stuff like HostInfo and their Endpoints here, but
-// only after their first request (marked with the ReadOnly field).
-//
-// At this moment the updates are sent in a quite horrendous way, but they kinda work.
-func (h *Headscale) PollNetMapHandler(
+// handlePollCommon is the common code for the legacy and Noise protocols to
+// managed the poll loop.
+func (h *Headscale) handlePollCommon(
 	writer http.ResponseWriter,
 	req *http.Request,
+	machine *Machine,
+	mapRequest tailcfg.MapRequest,
+	isNoise bool,
 ) {
-	vars := mux.Vars(req)
-	machineKeyStr, ok := vars["mkey"]
-	if !ok || machineKeyStr == "" {
-		log.Error().
-			Str("handler", "PollNetMap").
-			Msg("No machine key in request")
-		http.Error(writer, "No machine key in request", http.StatusBadRequest)
-
-		return
-	}
-	log.Trace().
-		Str("handler", "PollNetMap").
-		Str("id", machineKeyStr).
-		Msg("PollNetMapHandler called")
-	body, _ := io.ReadAll(req.Body)
-
-	var machineKey key.MachinePublic
-	err := machineKey.UnmarshalText([]byte(MachinePublicKeyEnsurePrefix(machineKeyStr)))
-	if err != nil {
-		log.Error().
-			Str("handler", "PollNetMap").
-			Err(err).
-			Msg("Cannot parse client key")
-
-		http.Error(writer, "Cannot parse client key", http.StatusBadRequest)
-
-		return
-	}
-	mapRequest := tailcfg.MapRequest{}
-	err = decode(body, &mapRequest, &machineKey, h.privateKey)
-	if err != nil {
-		log.Error().
-			Str("handler", "PollNetMap").
-			Err(err).
-			Msg("Cannot decode message")
-		http.Error(writer, "Cannot decode message", http.StatusBadRequest)
-
-		return
-	}
-
-	machine, err := h.GetMachineByMachineKey(machineKey)
-	if err != nil {
-		if errors.Is(err, gorm.ErrRecordNotFound) {
-			log.Warn().
-				Str("handler", "PollNetMap").
-				Msgf("Ignoring request, cannot find machine with key %s", machineKey.String())
-
-			http.Error(writer, "", http.StatusUnauthorized)
-
-			return
-		}
-		log.Error().
-			Str("handler", "PollNetMap").
-			Msgf("Failed to fetch machine from the database with Machine key: %s", machineKey.String())
-		http.Error(writer, "", http.StatusInternalServerError)
-
-		return
-	}
-	log.Trace().
-		Str("handler", "PollNetMap").
-		Str("id", machineKeyStr).
-		Str("machine", machine.Hostname).
-		Msg("Found machine in database")
-
 	machine.Hostname = mapRequest.Hostinfo.Hostname
 	machine.HostInfo = HostInfo(*mapRequest.Hostinfo)
 	machine.DiscoKey = DiscoPublicKeyStripPrefix(mapRequest.DiscoKey)
@@ -107,11 +34,11 @@ func (h *Headscale) PollNetMapHandler(
 
 	// update ACLRules with peer informations (to update server tags if necessary)
 	if h.aclPolicy != nil {
-		err = h.UpdateACLRules()
+		err := h.UpdateACLRules()
 		if err != nil {
 			log.Error().
 				Caller().
-				Str("func", "handleAuthKey").
+				Bool("noise", isNoise).
 				Str("machine", machine.Hostname).
 				Err(err)
 		}
@@ -133,7 +60,8 @@ func (h *Headscale) PollNetMapHandler(
 		if err != nil {
 			log.Error().
 				Str("handler", "PollNetMap").
-				Str("id", machineKeyStr).
+				Bool("noise", isNoise).
+				Str("node_key", machine.NodeKey).
 				Str("machine", machine.Hostname).
 				Err(err).
 				Msg("Failed to persist/update machine in the database")
@@ -143,11 +71,12 @@ func (h *Headscale) PollNetMapHandler(
 		}
 	}
 
-	data, err := h.getMapResponse(machineKey, mapRequest, machine)
+	mapResp, err := h.getMapResponseData(mapRequest, machine, isNoise)
 	if err != nil {
 		log.Error().
 			Str("handler", "PollNetMap").
-			Str("id", machineKeyStr).
+			Bool("noise", isNoise).
+			Str("node_key", machine.NodeKey).
 			Str("machine", machine.Hostname).
 			Err(err).
 			Msg("Failed to get Map response")
@@ -163,7 +92,7 @@ func (h *Headscale) PollNetMapHandler(
 	// Details on the protocol can be found in https://github.com/tailscale/tailscale/blob/main/tailcfg/tailcfg.go#L696
 	log.Debug().
 		Str("handler", "PollNetMap").
-		Str("id", machineKeyStr).
+		Bool("noise", isNoise).
 		Str("machine", machine.Hostname).
 		Bool("readOnly", mapRequest.ReadOnly).
 		Bool("omitPeers", mapRequest.OmitPeers).
@@ -173,12 +102,13 @@ func (h *Headscale) PollNetMapHandler(
 	if mapRequest.ReadOnly {
 		log.Info().
 			Str("handler", "PollNetMap").
+			Bool("noise", isNoise).
 			Str("machine", machine.Hostname).
 			Msg("Client is starting up. Probably interested in a DERP map")
 
 		writer.Header().Set("Content-Type", "application/json; charset=utf-8")
 		writer.WriteHeader(http.StatusOK)
-		_, err := writer.Write(data)
+		_, err := writer.Write(mapResp)
 		if err != nil {
 			log.Error().
 				Caller().
@@ -186,20 +116,24 @@ func (h *Headscale) PollNetMapHandler(
 				Msg("Failed to write response")
 		}
 
+		if f, ok := writer.(http.Flusher); ok {
+			f.Flush()
+		}
+
 		return
 	}
 
 	// There has been an update to _any_ of the nodes that the other nodes would
 	// need to know about
-	h.setLastStateChangeToNow(machine.Namespace.Name)
+	h.setLastStateChangeToNow()
 
 	// The request is not ReadOnly, so we need to set up channels for updating
 	// peers via longpoll
 
 	// Only create update channel if it has not been created
 	log.Trace().
-		Str("handler", "PollNetMap").
-		Str("id", machineKeyStr).
+		Caller().
+		Bool("noise", isNoise).
 		Str("machine", machine.Hostname).
 		Msg("Loading or creating update channel")
 
@@ -214,11 +148,12 @@ func (h *Headscale) PollNetMapHandler(
 	if mapRequest.OmitPeers && !mapRequest.Stream {
 		log.Info().
 			Str("handler", "PollNetMap").
+			Bool("noise", isNoise).
 			Str("machine", machine.Hostname).
 			Msg("Client sent endpoint update and is ok with a response without peer list")
 		writer.Header().Set("Content-Type", "application/json; charset=utf-8")
 		writer.WriteHeader(http.StatusOK)
-		_, err := writer.Write(data)
+		_, err := writer.Write(mapResp)
 		if err != nil {
 			log.Error().
 				Caller().
@@ -235,6 +170,7 @@ func (h *Headscale) PollNetMapHandler(
 	} else if mapRequest.OmitPeers && mapRequest.Stream {
 		log.Warn().
 			Str("handler", "PollNetMap").
+			Bool("noise", isNoise).
 			Str("machine", machine.Hostname).
 			Msg("Ignoring request, don't know how to handle it")
 		http.Error(writer, "", http.StatusBadRequest)
@@ -244,51 +180,54 @@ func (h *Headscale) PollNetMapHandler(
 
 	log.Info().
 		Str("handler", "PollNetMap").
+		Bool("noise", isNoise).
 		Str("machine", machine.Hostname).
 		Msg("Client is ready to access the tailnet")
 	log.Info().
 		Str("handler", "PollNetMap").
+		Bool("noise", isNoise).
 		Str("machine", machine.Hostname).
 		Msg("Sending initial map")
-	pollDataChan <- data
+	pollDataChan <- mapResp
 
 	log.Info().
 		Str("handler", "PollNetMap").
+		Bool("noise", isNoise).
 		Str("machine", machine.Hostname).
 		Msg("Notifying peers")
 	updateRequestsFromNode.WithLabelValues(machine.Namespace.Name, machine.Hostname, "full-update").
 		Inc()
 	updateChan <- struct{}{}
 
-	h.PollNetMapStream(
+	h.pollNetMapStream(
 		writer,
 		req,
 		machine,
 		mapRequest,
-		machineKey,
 		pollDataChan,
 		keepAliveChan,
 		updateChan,
+		isNoise,
 	)
+
 	log.Trace().
 		Str("handler", "PollNetMap").
-		Str("id", machineKeyStr).
+		Bool("noise", isNoise).
 		Str("machine", machine.Hostname).
 		Msg("Finished stream, closing PollNetMap session")
 }
 
-// PollNetMapStream takes care of /machine/:id/map
-// stream logic, ensuring we communicate updates and data
-// to the connected clients.
-func (h *Headscale) PollNetMapStream(
+// pollNetMapStream stream logic for /machine/map,
+// ensuring we communicate updates and data to the connected clients.
+func (h *Headscale) pollNetMapStream(
 	writer http.ResponseWriter,
 	req *http.Request,
 	machine *Machine,
 	mapRequest tailcfg.MapRequest,
-	machineKey key.MachinePublic,
 	pollDataChan chan []byte,
 	keepAliveChan chan []byte,
 	updateChan chan struct{},
+	isNoise bool,
 ) {
 	h.pollNetMapStreamWG.Add(1)
 	defer h.pollNetMapStreamWG.Done()
@@ -302,18 +241,20 @@ func (h *Headscale) PollNetMapStream(
 		ctx,
 		updateChan,
 		keepAliveChan,
-		machineKey,
 		mapRequest,
 		machine,
+		isNoise,
 	)
 
 	log.Trace().
-		Str("handler", "PollNetMapStream").
+		Str("handler", "pollNetMapStream").
+		Bool("noise", isNoise).
 		Str("machine", machine.Hostname).
 		Msg("Waiting for data to stream...")
 
 	log.Trace().
-		Str("handler", "PollNetMapStream").
+		Str("handler", "pollNetMapStream").
+		Bool("noise", isNoise).
 		Str("machine", machine.Hostname).
 		Msgf("pollData is %#v, keepAliveChan is %#v, updateChan is %#v", pollDataChan, keepAliveChan, updateChan)
 
@@ -322,6 +263,7 @@ func (h *Headscale) PollNetMapStream(
 		case data := <-pollDataChan:
 			log.Trace().
 				Str("handler", "PollNetMapStream").
+				Bool("noise", isNoise).
 				Str("machine", machine.Hostname).
 				Str("channel", "pollData").
 				Int("bytes", len(data)).
@@ -330,6 +272,7 @@ func (h *Headscale) PollNetMapStream(
 			if err != nil {
 				log.Error().
 					Str("handler", "PollNetMapStream").
+					Bool("noise", isNoise).
 					Str("machine", machine.Hostname).
 					Str("channel", "pollData").
 					Err(err).
@@ -343,6 +286,7 @@ func (h *Headscale) PollNetMapStream(
 				log.Error().
 					Caller().
 					Str("handler", "PollNetMapStream").
+					Bool("noise", isNoise).
 					Str("machine", machine.Hostname).
 					Str("channel", "pollData").
 					Msg("Cannot cast writer to http.Flusher")
@@ -352,6 +296,7 @@ func (h *Headscale) PollNetMapStream(
 
 			log.Trace().
 				Str("handler", "PollNetMapStream").
+				Bool("noise", isNoise).
 				Str("machine", machine.Hostname).
 				Str("channel", "pollData").
 				Int("bytes", len(data)).
@@ -363,6 +308,7 @@ func (h *Headscale) PollNetMapStream(
 			if err != nil {
 				log.Error().
 					Str("handler", "PollNetMapStream").
+					Bool("noise", isNoise).
 					Str("machine", machine.Hostname).
 					Str("channel", "pollData").
 					Err(err).
@@ -383,6 +329,7 @@ func (h *Headscale) PollNetMapStream(
 			if err != nil {
 				log.Error().
 					Str("handler", "PollNetMapStream").
+					Bool("noise", isNoise).
 					Str("machine", machine.Hostname).
 					Str("channel", "pollData").
 					Err(err).
@@ -393,6 +340,7 @@ func (h *Headscale) PollNetMapStream(
 
 			log.Trace().
 				Str("handler", "PollNetMapStream").
+				Bool("noise", isNoise).
 				Str("machine", machine.Hostname).
 				Str("channel", "pollData").
 				Int("bytes", len(data)).
@@ -409,6 +357,7 @@ func (h *Headscale) PollNetMapStream(
 			if err != nil {
 				log.Error().
 					Str("handler", "PollNetMapStream").
+					Bool("noise", isNoise).
 					Str("machine", machine.Hostname).
 					Str("channel", "keepAlive").
 					Err(err).
@@ -421,6 +370,7 @@ func (h *Headscale) PollNetMapStream(
 				log.Error().
 					Caller().
 					Str("handler", "PollNetMapStream").
+					Bool("noise", isNoise).
 					Str("machine", machine.Hostname).
 					Str("channel", "keepAlive").
 					Msg("Cannot cast writer to http.Flusher")
@@ -430,6 +380,7 @@ func (h *Headscale) PollNetMapStream(
 
 			log.Trace().
 				Str("handler", "PollNetMapStream").
+				Bool("noise", isNoise).
 				Str("machine", machine.Hostname).
 				Str("channel", "keepAlive").
 				Int("bytes", len(data)).
@@ -441,6 +392,7 @@ func (h *Headscale) PollNetMapStream(
 			if err != nil {
 				log.Error().
 					Str("handler", "PollNetMapStream").
+					Bool("noise", isNoise).
 					Str("machine", machine.Hostname).
 					Str("channel", "keepAlive").
 					Err(err).
@@ -456,6 +408,7 @@ func (h *Headscale) PollNetMapStream(
 			if err != nil {
 				log.Error().
 					Str("handler", "PollNetMapStream").
+					Bool("noise", isNoise).
 					Str("machine", machine.Hostname).
 					Str("channel", "keepAlive").
 					Err(err).
@@ -466,6 +419,7 @@ func (h *Headscale) PollNetMapStream(
 
 			log.Trace().
 				Str("handler", "PollNetMapStream").
+				Bool("noise", isNoise).
 				Str("machine", machine.Hostname).
 				Str("channel", "keepAlive").
 				Int("bytes", len(data)).
@@ -474,6 +428,7 @@ func (h *Headscale) PollNetMapStream(
 		case <-updateChan:
 			log.Trace().
 				Str("handler", "PollNetMapStream").
+				Bool("noise", isNoise).
 				Str("machine", machine.Hostname).
 				Str("channel", "update").
 				Msg("Received a request for update")
@@ -487,14 +442,16 @@ func (h *Headscale) PollNetMapStream(
 				}
 				log.Debug().
 					Str("handler", "PollNetMapStream").
+					Bool("noise", isNoise).
 					Str("machine", machine.Hostname).
 					Time("last_successful_update", lastUpdate).
 					Time("last_state_change", h.getLastStateChange(machine.Namespace.Name)).
 					Msgf("There has been updates since the last successful update to %s", machine.Hostname)
-				data, err := h.getMapResponse(machineKey, mapRequest, machine)
+				data, err := h.getMapResponseData(mapRequest, machine, false)
 				if err != nil {
 					log.Error().
 						Str("handler", "PollNetMapStream").
+						Bool("noise", isNoise).
 						Str("machine", machine.Hostname).
 						Str("channel", "update").
 						Err(err).
@@ -506,6 +463,7 @@ func (h *Headscale) PollNetMapStream(
 				if err != nil {
 					log.Error().
 						Str("handler", "PollNetMapStream").
+						Bool("noise", isNoise).
 						Str("machine", machine.Hostname).
 						Str("channel", "update").
 						Err(err).
@@ -521,6 +479,7 @@ func (h *Headscale) PollNetMapStream(
 					log.Error().
 						Caller().
 						Str("handler", "PollNetMapStream").
+						Bool("noise", isNoise).
 						Str("machine", machine.Hostname).
 						Str("channel", "update").
 						Msg("Cannot cast writer to http.Flusher")
@@ -530,6 +489,7 @@ func (h *Headscale) PollNetMapStream(
 
 				log.Trace().
 					Str("handler", "PollNetMapStream").
+					Bool("noise", isNoise).
 					Str("machine", machine.Hostname).
 					Str("channel", "update").
 					Msg("Updated Map has been sent")
@@ -547,6 +507,7 @@ func (h *Headscale) PollNetMapStream(
 				if err != nil {
 					log.Error().
 						Str("handler", "PollNetMapStream").
+						Bool("noise", isNoise).
 						Str("machine", machine.Hostname).
 						Str("channel", "update").
 						Err(err).
@@ -566,6 +527,7 @@ func (h *Headscale) PollNetMapStream(
 				if err != nil {
 					log.Error().
 						Str("handler", "PollNetMapStream").
+						Bool("noise", isNoise).
 						Str("machine", machine.Hostname).
 						Str("channel", "update").
 						Err(err).
@@ -580,6 +542,7 @@ func (h *Headscale) PollNetMapStream(
 				}
 				log.Trace().
 					Str("handler", "PollNetMapStream").
+					Bool("noise", isNoise).
 					Str("machine", machine.Hostname).
 					Time("last_successful_update", lastUpdate).
 					Time("last_state_change", h.getLastStateChange(machine.Namespace.Name)).
@@ -598,6 +561,7 @@ func (h *Headscale) PollNetMapStream(
 			if err != nil {
 				log.Error().
 					Str("handler", "PollNetMapStream").
+					Bool("noise", isNoise).
 					Str("machine", machine.Hostname).
 					Str("channel", "Done").
 					Err(err).
@@ -613,6 +577,7 @@ func (h *Headscale) PollNetMapStream(
 			if err != nil {
 				log.Error().
 					Str("handler", "PollNetMapStream").
+					Bool("noise", isNoise).
 					Str("machine", machine.Hostname).
 					Str("channel", "Done").
 					Err(err).
@@ -625,6 +590,7 @@ func (h *Headscale) PollNetMapStream(
 		case <-h.shutdownChan:
 			log.Info().
 				Str("handler", "PollNetMapStream").
+				Bool("noise", isNoise).
 				Str("machine", machine.Hostname).
 				Msg("The long-poll handler is shutting down")
 
@@ -637,9 +603,9 @@ func (h *Headscale) scheduledPollWorker(
 	ctx context.Context,
 	updateChan chan struct{},
 	keepAliveChan chan []byte,
-	machineKey key.MachinePublic,
 	mapRequest tailcfg.MapRequest,
 	machine *Machine,
+	isNoise bool,
 ) {
 	keepAliveTicker := time.NewTicker(keepAliveInterval)
 	updateCheckerTicker := time.NewTicker(h.cfg.NodeUpdateCheckInterval)
@@ -661,10 +627,11 @@ func (h *Headscale) scheduledPollWorker(
 			return
 
 		case <-keepAliveTicker.C:
-			data, err := h.getMapKeepAliveResponse(machineKey, mapRequest)
+			data, err := h.getMapKeepAliveResponseData(mapRequest, machine, isNoise)
 			if err != nil {
 				log.Error().
 					Str("func", "keepAlive").
+					Bool("noise", isNoise).
 					Err(err).
 					Msg("Error generating the keep alive msg")
 
@@ -674,6 +641,7 @@ func (h *Headscale) scheduledPollWorker(
 			log.Debug().
 				Str("func", "keepAlive").
 				Str("machine", machine.Hostname).
+				Bool("noise", isNoise).
 				Msg("Sending keepalive")
 			keepAliveChan <- data
 
@@ -681,6 +649,7 @@ func (h *Headscale) scheduledPollWorker(
 			log.Debug().
 				Str("func", "scheduledPollWorker").
 				Str("machine", machine.Hostname).
+				Bool("noise", isNoise).
 				Msg("Sending update request")
 			updateRequestsFromNode.WithLabelValues(machine.Namespace.Name, machine.Hostname, "scheduled-update").
 				Inc()
diff --git a/protocol_common_utils.go b/protocol_common_utils.go
new file mode 100644
index 0000000..3dc435f
--- /dev/null
+++ b/protocol_common_utils.go
@@ -0,0 +1,120 @@
+package headscale
+
+import (
+	"encoding/binary"
+	"encoding/json"
+
+	"github.com/klauspost/compress/zstd"
+	"github.com/rs/zerolog/log"
+	"tailscale.com/tailcfg"
+	"tailscale.com/types/key"
+)
+
+func (h *Headscale) getMapResponseData(
+	mapRequest tailcfg.MapRequest,
+	machine *Machine,
+	isNoise bool,
+) ([]byte, error) {
+	mapResponse, err := h.generateMapResponse(mapRequest, machine)
+	if err != nil {
+		return nil, err
+	}
+
+	if isNoise {
+		return h.marshalMapResponse(mapResponse, key.MachinePublic{}, mapRequest.Compress)
+	}
+
+	var machineKey key.MachinePublic
+	err = machineKey.UnmarshalText([]byte(MachinePublicKeyEnsurePrefix(machine.MachineKey)))
+	if err != nil {
+		log.Error().
+			Caller().
+			Err(err).
+			Msg("Cannot parse client key")
+
+		return nil, err
+	}
+
+	return h.marshalMapResponse(mapResponse, machineKey, mapRequest.Compress)
+}
+
+func (h *Headscale) getMapKeepAliveResponseData(
+	mapRequest tailcfg.MapRequest,
+	machine *Machine,
+	isNoise bool,
+) ([]byte, error) {
+	keepAliveResponse := tailcfg.MapResponse{
+		KeepAlive: true,
+	}
+
+	if isNoise {
+		return h.marshalMapResponse(keepAliveResponse, key.MachinePublic{}, mapRequest.Compress)
+	}
+
+	var machineKey key.MachinePublic
+	err := machineKey.UnmarshalText([]byte(MachinePublicKeyEnsurePrefix(machine.MachineKey)))
+	if err != nil {
+		log.Error().
+			Caller().
+			Err(err).
+			Msg("Cannot parse client key")
+
+		return nil, err
+	}
+
+	return h.marshalMapResponse(keepAliveResponse, machineKey, mapRequest.Compress)
+}
+
+func (h *Headscale) marshalResponse(
+	resp interface{},
+	machineKey key.MachinePublic,
+) ([]byte, error) {
+	jsonBody, err := json.Marshal(resp)
+	if err != nil {
+		log.Error().
+			Caller().
+			Err(err).
+			Msg("Cannot marshal response")
+	}
+
+	if machineKey.IsZero() { // if Noise
+		return jsonBody, nil
+	}
+
+	return h.privateKey.SealTo(machineKey, jsonBody), nil
+}
+
+func (h *Headscale) marshalMapResponse(
+	resp interface{},
+	machineKey key.MachinePublic,
+	compression string,
+) ([]byte, error) {
+	jsonBody, err := json.Marshal(resp)
+	if err != nil {
+		log.Error().
+			Caller().
+			Err(err).
+			Msg("Cannot marshal map response")
+	}
+
+	var respBody []byte
+	if compression == ZstdCompression {
+		encoder, _ := zstd.NewWriter(nil)
+		respBody = encoder.EncodeAll(jsonBody, nil)
+		if !machineKey.IsZero() { // if legacy protocol
+			respBody = h.privateKey.SealTo(machineKey, respBody)
+		}
+	} else {
+		if !machineKey.IsZero() { // if legacy protocol
+			respBody = h.privateKey.SealTo(machineKey, jsonBody)
+		} else {
+			respBody = jsonBody
+		}
+	}
+
+	data := make([]byte, reservedResponseHeaderSize)
+	binary.LittleEndian.PutUint32(data, uint32(len(respBody)))
+	data = append(data, respBody...)
+
+	return data, nil
+}
diff --git a/protocol_legacy.go b/protocol_legacy.go
new file mode 100644
index 0000000..4e75d12
--- /dev/null
+++ b/protocol_legacy.go
@@ -0,0 +1,58 @@
+package headscale
+
+import (
+	"io"
+	"net/http"
+
+	"github.com/gorilla/mux"
+	"github.com/rs/zerolog/log"
+	"tailscale.com/tailcfg"
+	"tailscale.com/types/key"
+)
+
+// RegistrationHandler handles the actual registration process of a machine
+// Endpoint /machine/:mkey.
+func (h *Headscale) RegistrationHandler(
+	writer http.ResponseWriter,
+	req *http.Request,
+) {
+	vars := mux.Vars(req)
+	machineKeyStr, ok := vars["mkey"]
+	if !ok || machineKeyStr == "" {
+		log.Error().
+			Str("handler", "RegistrationHandler").
+			Msg("No machine ID in request")
+		http.Error(writer, "No machine ID in request", http.StatusBadRequest)
+
+		return
+	}
+
+	body, _ := io.ReadAll(req.Body)
+
+	var machineKey key.MachinePublic
+	err := machineKey.UnmarshalText([]byte(MachinePublicKeyEnsurePrefix(machineKeyStr)))
+	if err != nil {
+		log.Error().
+			Caller().
+			Err(err).
+			Msg("Cannot parse machine key")
+		machineRegistrations.WithLabelValues("unknown", "web", "error", "unknown").Inc()
+		http.Error(writer, "Cannot parse machine key", http.StatusBadRequest)
+
+		return
+	}
+	registerRequest := tailcfg.RegisterRequest{}
+	err = decode(body, &registerRequest, &machineKey, h.privateKey)
+	if err != nil {
+		log.Error().
+			Caller().
+			Err(err).
+			Msg("Cannot decode message")
+		machineRegistrations.WithLabelValues("unknown", "web", "error", "unknown").Inc()
+		http.Error(writer, "Cannot decode message", http.StatusBadRequest)
+
+		return
+	}
+
+	h.handleRegisterCommon(writer, req, registerRequest, machineKey)
+}
diff --git a/protocol_legacy_poll.go b/protocol_legacy_poll.go
new file mode 100644
index 0000000..f7ef654
--- /dev/null
+++ b/protocol_legacy_poll.go
@@ -0,0 +1,94 @@
+package headscale
+
+import (
+	"errors"
+	"io"
+	"net/http"
+
+	"github.com/gorilla/mux"
+	"github.com/rs/zerolog/log"
+	"gorm.io/gorm"
+	"tailscale.com/tailcfg"
+	"tailscale.com/types/key"
+)
+
+// PollNetMapHandler takes care of /machine/:id/map
+//
+// This is the busiest endpoint, as it keeps the HTTP long poll that updates
+// the clients when something in the network changes.
+//
+// The clients POST stuff like HostInfo and their Endpoints here, but
+// only after their first request (marked with the ReadOnly field).
+//
+// At this moment the updates are sent in a quite horrendous way, but they kinda work.
+func (h *Headscale) PollNetMapHandler(
+	writer http.ResponseWriter,
+	req *http.Request,
+) {
+	vars := mux.Vars(req)
+	machineKeyStr, ok := vars["mkey"]
+	if !ok || machineKeyStr == "" {
+		log.Error().
+			Str("handler", "PollNetMap").
+			Msg("No machine key in request")
+		http.Error(writer, "No machine key in request", http.StatusBadRequest)
+
+		return
+	}
+	log.Trace().
+		Str("handler", "PollNetMap").
+		Str("id", machineKeyStr).
+		Msg("PollNetMapHandler called")
+	body, _ := io.ReadAll(req.Body)
+
+	var machineKey key.MachinePublic
+	err := machineKey.UnmarshalText([]byte(MachinePublicKeyEnsurePrefix(machineKeyStr)))
+	if err != nil {
+		log.Error().
+			Str("handler", "PollNetMap").
+			Err(err).
+			Msg("Cannot parse client key")
+
+		http.Error(writer, "Cannot parse client key", http.StatusBadRequest)
+
+		return
+	}
+	mapRequest := tailcfg.MapRequest{}
+	err = decode(body, &mapRequest, &machineKey, h.privateKey)
+	if err != nil {
+		log.Error().
+			Str("handler", "PollNetMap").
+			Err(err).
+			Msg("Cannot decode message")
+		http.Error(writer, "Cannot decode message", http.StatusBadRequest)
+
+		return
+	}
+
+	machine, err := h.GetMachineByMachineKey(machineKey)
+	if err != nil {
+		if errors.Is(err, gorm.ErrRecordNotFound) {
+			log.Warn().
+				Str("handler", "PollNetMap").
+				Msgf("Ignoring request, cannot find machine with key %s", machineKey.String())
+
+			http.Error(writer, "", http.StatusUnauthorized)
+
+			return
+		}
+		log.Error().
+			Str("handler", "PollNetMap").
+			Msgf("Failed to fetch machine from the database with Machine key: %s", machineKey.String())
+		http.Error(writer, "", http.StatusInternalServerError)
+
+		return
+	}
+
+	log.Trace().
+		Str("handler", "PollNetMap").
+		Str("id", machineKeyStr).
+		Str("machine", machine.Hostname).
+		Msg("A machine is entering polling via the legacy protocol")
+
+	h.handlePollCommon(writer, req, machine, mapRequest, false)
+}
diff --git a/protocol_noise.go b/protocol_noise.go
new file mode 100644
index 0000000..46f7a03
--- /dev/null
+++ b/protocol_noise.go
@@ -0,0 +1,38 @@
+package headscale
+
+import (
+	"encoding/json"
+	"io"
+	"net/http"
+
+	"github.com/rs/zerolog/log"
+	"tailscale.com/tailcfg"
+	"tailscale.com/types/key"
+)
+
+// // NoiseRegistrationHandler handles the actual registration process of a machine.
+func (h *Headscale) NoiseRegistrationHandler(
+	writer http.ResponseWriter,
+	req *http.Request,
+) {
+	log.Trace().Caller().Msgf("Noise registration handler for client %s", req.RemoteAddr)
+	if req.Method != http.MethodPost {
+		http.Error(writer, "Wrong method", http.StatusMethodNotAllowed)
+
+		return
+	}
+	body, _ := io.ReadAll(req.Body)
+	registerRequest := tailcfg.RegisterRequest{}
+	if err := json.Unmarshal(body, &registerRequest); err != nil {
+		log.Error().
+			Caller().
+			Err(err).
+			Msg("Cannot parse RegisterRequest")
+		machineRegistrations.WithLabelValues("unknown", "web", "error", "unknown").Inc()
+		http.Error(writer, "Internal error", http.StatusInternalServerError)
+
+		return
+	}
+
+	h.handleRegisterCommon(writer, req, registerRequest, key.MachinePublic{})
+}
diff --git a/protocol_noise_poll.go b/protocol_noise_poll.go
new file mode 100644
index 0000000..8498dcf
--- /dev/null
+++ b/protocol_noise_poll.go
@@ -0,0 +1,67 @@
+package headscale
+
+import (
+	"encoding/json"
+	"errors"
+	"io"
+	"net/http"
+
+	"github.com/rs/zerolog/log"
+	"gorm.io/gorm"
+	"tailscale.com/tailcfg"
+	"tailscale.com/types/key"
+)
+
+// NoisePollNetMapHandler takes care of /machine/:id/map using the Noise protocol
+//
+// This is the busiest endpoint, as it keeps the HTTP long poll that updates
+// the clients when something in the network changes.
+//
+// The clients POST stuff like HostInfo and their Endpoints here, but
+// only after their first request (marked with the ReadOnly field).
+//
+// At this moment the updates are sent in a quite horrendous way, but they kinda work.
+func (h *Headscale) NoisePollNetMapHandler(
+	writer http.ResponseWriter,
+	req *http.Request,
+) {
+	log.Trace().
+		Str("handler", "NoisePollNetMap").
+		Msg("PollNetMapHandler called")
+	body, _ := io.ReadAll(req.Body)
+
+	mapRequest := tailcfg.MapRequest{}
+	if err := json.Unmarshal(body, &mapRequest); err != nil {
+		log.Error().
+			Caller().
+			Err(err).
+			Msg("Cannot parse MapRequest")
+		http.Error(writer, "Internal error", http.StatusInternalServerError)
+
+		return
+	}
+
+	machine, err := h.GetMachineByAnyNodeKey(mapRequest.NodeKey, key.NodePublic{})
+	if err != nil {
+		if errors.Is(err, gorm.ErrRecordNotFound) {
+			log.Warn().
+				Str("handler", "NoisePollNetMap").
+				Msgf("Ignoring request, cannot find machine with key %s", mapRequest.NodeKey.String())
+			http.Error(writer, "Internal error", http.StatusNotFound)
+
+			return
+		}
+		log.Error().
+			Str("handler", "NoisePollNetMap").
+			Msgf("Failed to fetch machine from the database with node key: %s", mapRequest.NodeKey.String())
+		http.Error(writer, "Internal error", http.StatusInternalServerError)
+
+		return
+	}
+	log.Debug().
+		Str("handler", "NoisePollNetMap").
+		Str("machine", machine.Hostname).
+		Msg("A machine is entering polling via the Noise protocol")
+
+	h.handlePollCommon(writer, req, machine, mapRequest, true)
+}
diff --git a/utils.go b/utils.go
index b436253..e7fb13a 100644
--- a/utils.go
+++ b/utils.go
@@ -59,6 +59,8 @@ const (
 	privateHexPrefix = "privkey:"
 
 	PermissionFallback = 0o700
+
+	ZstdCompression = "zstd"
 )
 
 func MachinePublicKeyStripPrefix(machineKey key.MachinePublic) string {
@@ -116,7 +118,10 @@ func decode(
 	pubKey *key.MachinePublic,
 	privKey *key.MachinePrivate,
 ) error {
-	log.Trace().Int("length", len(msg)).Msg("Trying to decrypt")
+	log.Trace().
+		Str("pubkey", pubKey.ShortString()).
+		Int("length", len(msg)).
+		Msg("Trying to decrypt")
 
 	decrypted, ok := privKey.OpenFrom(*pubKey, msg)
 	if !ok {
@@ -130,19 +135,6 @@ func decode(
 	return nil
 }
 
-func encode(
-	v interface{},
-	pubKey *key.MachinePublic,
-	privKey *key.MachinePrivate,
-) ([]byte, error) {
-	b, err := json.Marshal(v)
-	if err != nil {
-		return nil, err
-	}
-
-	return privKey.SealTo(*pubKey, b), nil
-}
-
 func (h *Headscale) getAvailableIPs() (MachineAddresses, error) {
 	var ips MachineAddresses
 	var err error