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[Bug] failed to bind to TCP address: listen tcp :50443: bind: address already in use #842

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opened 2025-12-29 02:24:43 +01:00 by adam · 3 comments
adam commented 2025-12-29 02:24:43 +01:00
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Originally created by @xopherKPMG on GitHub (Oct 31, 2024).

Is this a support request?

  • This is not a support request

Is there an existing issue for this?

  • I have searched the existing issues

Current Behavior

I am trying to start a new headscale instance. I have done this several times in the past and thought it would be straightforward. However no matter what I do, I run into the following error:

$ sudo headscale serve
2024-10-31T12:50:15Z WRN 
WARN: The "dns.use_username_in_magic_dns" configuration key is deprecated and has been removed. Please see the changelog for more details.

2024-10-31T12:50:15Z INF Opening database database=sqlite3 path=/var/lib/headscale/db.sqlite
2024-10-31T12:50:16Z INF Setting up a DERPMap update worker frequency=86400000
2024-10-31T12:50:16Z INF Enabling remote gRPC at :50443
2024-10-31T12:50:16Z FTL ../runner/work/headscale/headscale/cmd/headscale/cli/serve.go:29 > Headscale ran into an error and had to shut down. error="failed to bind to TCP address: listen tcp :50443: bind: address already in use"

Expected Behavior

I expect headscale to run as normal, so that I am able to connect new nodes to it

Steps To Reproduce

  1. Follow the instructions from Headscale's documentation https://headscale.net/setup/install/official/#using-packages-for-debianubuntu-recommended
  2. sudo headscale server

---
# headscale will look for a configuration file named `config.yaml` (or `config.json`) in the following order:
#
# - `/etc/headscale`
# - `~/.headscale`
# - current working directory

# The url clients will connect to.
# Typically this will be a domain like:
#
# https://myheadscale.example.com:443
#
server_url: https://********:443

# Address to listen to / bind to on the server
#
# For production:
listen_addr: 0.0.0.0:8080
#listen_addr: 127.0.0.1:8080

# Address to listen to /metrics, you may want
# to keep this endpoint private to your internal
# network
#
metrics_listen_addr: 127.0.0.1:9090

# Address to listen for gRPC.
# gRPC is used for controlling a headscale server
# remotely with the CLI
# Note: Remote access _only_ works if you have
# valid certificates.
#
# For production:
grpc_listen_addr: 0.0.0.0:50443
#grpc_listen_addr: 127.0.0.1:50443

# Allow the gRPC admin interface to run in INSECURE
# mode. This is not recommended as the traffic will
# be unencrypted. Only enable if you know what you
# are doing.
grpc_allow_insecure: false

# The Noise section includes specific configuration for the
# TS2021 Noise protocol
noise:
  # The Noise private key is used to encrypt the
  # traffic between headscale and Tailscale clients when
  # using the new Noise-based protocol.
  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.
# It must be within IP ranges supported by the Tailscale
# client - i.e., subnets of 100.64.0.0/10 and fd7a:115c:a1e0::/48.
# See below:
# IPv6: https://github.com/tailscale/tailscale/blob/22ebb25e833264f58d7c3f534a8b166894a89536/net/tsaddr/tsaddr.go#LL81C52-L81C71
# IPv4: https://github.com/tailscale/tailscale/blob/22ebb25e833264f58d7c3f534a8b166894a89536/net/tsaddr/tsaddr.go#L33
# Any other range is NOT supported, and it will cause unexpected issues.
prefixes:
  v6: fd7a:115c:a1e0::/48
  v4: 100.64.0.0/10

  # Strategy used for allocation of IPs to nodes, available options:
  # - sequential (default): assigns the next free IP from the previous given IP.
  # - random: assigns the next free IP from a pseudo-random IP generator (crypto/rand).
  allocation: sequential

# DERP is a relay system that Tailscale uses when a direct
# connection cannot be established.
# https://tailscale.com/blog/how-tailscale-works/#encrypted-tcp-relays-derp
#
# headscale needs a list of DERP servers that can be presented
# to the clients.
derp:
  server:
    # If enabled, runs the embedded DERP server and merges it into the rest of the DERP config
    # The Headscale server_url defined above MUST be using https, DERP requires TLS to be in place
    enabled: false

    # Region ID to use for the embedded DERP server.
    # The local DERP prevails if the region ID collides with other region ID coming from
    # the regular DERP config.
    region_id: 999

    # Region code and name are displayed in the Tailscale UI to identify a DERP region
    region_code: "headscale"
    region_name: "Headscale Embedded DERP"

    # Listens over UDP at the configured address for STUN connections - to help with NAT traversal.
    # When the embedded DERP server is enabled stun_listen_addr MUST be defined.
    #
    # For more details on how this works, check this great article: https://tailscale.com/blog/how-tailscale-works/
    stun_listen_addr: "0.0.0.0:3478"

    # Private key used to encrypt the traffic between headscale DERP
    # and Tailscale clients.
    # The private key file will be autogenerated if it's missing.
    #
    private_key_path: /var/lib/headscale/derp_server_private.key

    # This flag can be used, so the DERP map entry for the embedded DERP server is not written automatically,
    # it enables the creation of your very own DERP map entry using a locally available file with the parameter DERP.paths
    # If you enable the DERP server and set this to false, it is required to add the DERP server to the DERP map using DERP.paths
    automatically_add_embedded_derp_region: true

    # For better connection stability (especially when using an Exit-Node and DNS is not working),
    # it is possible to optionally add the public IPv4 and IPv6 address to the Derp-Map using:
    ipv4: 1.2.3.4
    ipv6: 2001:db8::1

  # List of externally available DERP maps encoded in JSON
  urls:
    - https://controlplane.tailscale.com/derpmap/default

  # Locally available DERP map files encoded in YAML
  #
  # This option is mostly interesting for people hosting
  # their own DERP servers:
  # https://tailscale.com/kb/1118/custom-derp-servers/
  #
  # paths:
  #   - /etc/headscale/derp-example.yaml
  paths: []

  # If enabled, a worker will be set up to periodically
  # refresh the given sources and update the derpmap
  # will be set up.
  auto_update_enabled: true

  # How often should we check for DERP updates?
  update_frequency: 24h

# Disables the automatic check for headscale updates on startup
disable_check_updates: false

# Time before an inactive ephemeral node is deleted?
ephemeral_node_inactivity_timeout: 30m

database:
  # Database type. Available options: sqlite, postgres
  # Please note that using Postgres is highly discouraged as it is only supported for legacy reasons.
  # All new development, testing and optimisations are done with SQLite in mind.
  type: sqlite

  # Enable debug mode. This setting requires the log.level to be set to "debug" or "trace".
  debug: false

  # GORM configuration settings.
  gorm:
    # Enable prepared statements.
    prepare_stmt: true

    # Enable parameterized queries.
    parameterized_queries: true

    # Skip logging "record not found" errors.
    skip_err_record_not_found: true

    # Threshold for slow queries in milliseconds.
    slow_threshold: 1000

  # SQLite config
  sqlite:
    path: /var/lib/headscale/db.sqlite

    # Enable WAL mode for SQLite. This is recommended for production environments.
    # https://www.sqlite.org/wal.html
    write_ahead_log: true

  # # Postgres config
  # Please note that using Postgres is highly discouraged as it is only supported for legacy reasons.
  # See database.type for more information.
  # postgres:
  #   # If using a Unix socket to connect to Postgres, set the socket path in the 'host' field and leave 'port' blank.
  #   host: localhost
  #   port: 5432
  #   name: headscale
  #   user: foo
  #   pass: bar
  #   max_open_conns: 10
  #   max_idle_conns: 10
  #   conn_max_idle_time_secs: 3600

  #   # If other 'sslmode' is required instead of 'require(true)' and 'disabled(false)', set the 'sslmode' you need
  #   # in the 'ssl' field. Refers to https://www.postgresql.org/docs/current/libpq-ssl.html Table 34.1.
  #   ssl: false

### TLS configuration
#
## Let's encrypt / ACME
#
# headscale supports automatically requesting and setting up
# TLS for a domain with Let's Encrypt.
#
# URL to ACME directory
acme_url: https://acme-v02.api.letsencrypt.org/directory

# Email to register with ACME provider
acme_email: ""

# Domain name to request a TLS certificate for:
tls_letsencrypt_hostname: "*********"

# Path to store certificates and metadata needed by
# letsencrypt
# For production:
tls_letsencrypt_cache_dir: /var/lib/headscale/cache

# Type of ACME challenge to use, currently supported types:
# HTTP-01 or TLS-ALPN-01
# See [docs/tls.md](docs/tls.md) for more information
tls_letsencrypt_challenge_type: HTTP-01
# When HTTP-01 challenge is chosen, letsencrypt must set up a
# verification endpoint, and it will be listening on:
# :http = port 80
tls_letsencrypt_listen: ":http"

## Use already defined certificates:
tls_cert_path: ""
tls_key_path: ""

log:
  # Output formatting for logs: text or json
  format: text
  level: info

## Policy
# headscale supports Tailscale's ACL policies.
# Please have a look to their KB to better
# understand the concepts: https://tailscale.com/kb/1018/acls/
policy:
  # The mode can be "file" or "database" that defines
  # where the ACL policies are stored and read from.
  mode: file
  # If the mode is set to "file", the path to a
  # HuJSON file containing ACL policies.
  path: ""

## DNS
#
# headscale supports Tailscale's DNS configuration and MagicDNS.
# Please have a look to their KB to better understand the concepts:
#
# - https://tailscale.com/kb/1054/dns/
# - https://tailscale.com/kb/1081/magicdns/
# - https://tailscale.com/blog/2021-09-private-dns-with-magicdns/
#
# Please note that for the DNS configuration to have any effect,
# clients must have the `--accept-dns=true` option enabled. This is the
# default for the Tailscale client. This option is enabled by default
# in the Tailscale client.
#
# Setting _any_ of the configuration and `--accept-dns=true` on the
# clients will integrate with the DNS manager on the client or
# overwrite /etc/resolv.conf.
# https://tailscale.com/kb/1235/resolv-conf
#
# If you want stop Headscale from managing the DNS configuration
# all the fields under `dns` should be set to empty values.
dns:
  # Whether to use [MagicDNS](https://tailscale.com/kb/1081/magicdns/).
  # Only works if there is at least a nameserver defined.
  magic_dns: true

  # Defines the base domain to create the hostnames for MagicDNS.
  # This domain _must_ be different from the server_url domain.
  # `base_domain` must be a FQDN, without the trailing dot.
  # The FQDN of the hosts will be
  # `hostname.base_domain` (e.g., _myhost.example.com_).
  base_domain: redteam.com

  # List of DNS servers to expose to clients.
  nameservers:
    global:
      - 1.1.1.1
      - 1.0.0.1
      - 2606:4700:4700::1111
      - 2606:4700:4700::1001

      # NextDNS (see https://tailscale.com/kb/1218/nextdns/).
      # "abc123" is example NextDNS ID, replace with yours.
      # - https://dns.nextdns.io/abc123

    # Split DNS (see https://tailscale.com/kb/1054/dns/),
    # a map of domains and which DNS server to use for each.
    split:
      {}
      # foo.bar.com:
      #   - 1.1.1.1
      # darp.headscale.net:
      #   - 1.1.1.1
      #   - 8.8.8.8

  # Set custom DNS search domains. With MagicDNS enabled,
  # your tailnet base_domain is always the first search domain.
  search_domains: []

  # Extra DNS records
  # so far only A-records are supported (on the tailscale side)
  # See https://github.com/juanfont/headscale/blob/main/docs/dns-records.md#Limitations
  extra_records: []
  #   - name: "grafana.myvpn.example.com"
  #     type: "A"
  #     value: "100.64.0.3"
  #
  #   # you can also put it in one line
  #   - { name: "prometheus.myvpn.example.com", type: "A", value: "100.64.0.3" }

  # DEPRECATED
  # Use the username as part of the DNS name for nodes, with this option enabled:
  # node1.username.example.com
  # while when this is disabled:
  # node1.example.com
  # This is a legacy option as Headscale has have this wrongly implemented
  # while in upstream Tailscale, the username is not included.
  use_username_in_magic_dns: false

# Unix socket used for the CLI to connect without authentication
# Note: for production you will want to set this to something like:
unix_socket: /var/run/headscale/headscale.sock
unix_socket_permission: "0770"
#
# headscale supports experimental OpenID connect support,
# it is still being tested and might have some bugs, please
# help us test it.
# OpenID Connect
# oidc:
#   only_start_if_oidc_is_available: true
#   issuer: "https://your-oidc.issuer.com/path"
#   client_id: "your-oidc-client-id"
#   client_secret: "your-oidc-client-secret"
#   # Alternatively, set `client_secret_path` to read the secret from the file.
#   # It resolves environment variables, making integration to systemd's
#   # `LoadCredential` straightforward:
#   client_secret_path: "${CREDENTIALS_DIRECTORY}/oidc_client_secret"
#   # client_secret and client_secret_path are mutually exclusive.
#
#   # The amount of time from a node is authenticated with OpenID until it
#   # expires and needs to reauthenticate.
#   # Setting the value to "0" will mean no expiry.
#   expiry: 180d
#
#   # Use the expiry from the token received from OpenID when the user logged
#   # in, this will typically lead to frequent need to reauthenticate and should
#   # only been enabled if you know what you are doing.
#   # Note: enabling this will cause `oidc.expiry` to be ignored.
#   use_expiry_from_token: false
#
#   # Customize the scopes used in the OIDC flow, defaults to "openid", "profile" and "email" and add custom query
#   # parameters to the Authorize Endpoint request. Scopes default to "openid", "profile" and "email".
#
#   scope: ["openid", "profile", "email", "custom"]
#   extra_params:
#     domain_hint: example.com
#
#   # List allowed principal domains and/or users. If an authenticated user's domain is not in this list, the
#   # authentication request will be rejected.
#
#   allowed_domains:
#     - example.com
#   # Note: Groups from keycloak have a leading '/'
#   allowed_groups:
#     - /headscale
#   allowed_users:
#     - alice@example.com
#
#   # If `strip_email_domain` is set to `true`, the domain part of the username email address will be removed.
#   # This will transform `first-name.last-name@example.com` to the user `first-name.last-name`
#   # If `strip_email_domain` is set to `false` the domain part will NOT be removed resulting to the following
#   user: `first-name.last-name.example.com`
#
#   strip_email_domain: true

# Logtail configuration
# Logtail is Tailscales logging and auditing infrastructure, it allows the control panel
# to instruct tailscale nodes to log their activity to a remote server.
logtail:
  # Enable logtail for this headscales clients.
  # As there is currently no support for overriding the log server in headscale, this is
  # disabled by default. Enabling this will make your clients send logs to Tailscale Inc.
  enabled: false

# Enabling this option makes devices prefer a random port for WireGuard traffic over the
# default static port 41641. This option is intended as a workaround for some buggy
# firewall devices. See https://tailscale.com/kb/1181/firewalls/ for more information.
randomize_client_port: false


### Environment

```markdown
- OS:Ubuntu 24.04.1 
- Headscale version:v0.23.0

$ sudo ss -tulnp|grep headscale
tcp   LISTEN 0      128             127.0.0.1:9090       0.0.0.0:*    users:(("headscale",pid=1861,fd=16))                   
tcp   LISTEN 0      128                     *:8080             *:*    users:(("headscale",pid=1861,fd=15))                   
tcp   LISTEN 0      128                     *:50443            *:*    users:(("headscale",pid=1861,fd=13))                   
tcp   LISTEN 0      128                     *:80               *:*    users:(("headscale",pid=1861,fd=14))      

NSG is allowing inbound traffic to ports 22, 80, 8080, 443, and 50443

Runtime environment

  • Headscale is behind a (reverse) proxy
  • Headscale runs in a container

Anything else?

No response

Originally created by @xopherKPMG on GitHub (Oct 31, 2024). ### Is this a support request? - [X] This is not a support request ### Is there an existing issue for this? - [X] I have searched the existing issues ### Current Behavior I am trying to start a new headscale instance. I have done this several times in the past and thought it would be straightforward. However no matter what I do, I run into the following error: ``` $ sudo headscale serve 2024-10-31T12:50:15Z WRN WARN: The "dns.use_username_in_magic_dns" configuration key is deprecated and has been removed. Please see the changelog for more details. 2024-10-31T12:50:15Z INF Opening database database=sqlite3 path=/var/lib/headscale/db.sqlite 2024-10-31T12:50:16Z INF Setting up a DERPMap update worker frequency=86400000 2024-10-31T12:50:16Z INF Enabling remote gRPC at :50443 2024-10-31T12:50:16Z FTL ../runner/work/headscale/headscale/cmd/headscale/cli/serve.go:29 > Headscale ran into an error and had to shut down. error="failed to bind to TCP address: listen tcp :50443: bind: address already in use" ``` ### Expected Behavior I expect headscale to run as normal, so that I am able to connect new nodes to it ### Steps To Reproduce 1. Follow the instructions from Headscale's documentation https://headscale.net/setup/install/official/#using-packages-for-debianubuntu-recommended 2. sudo headscale server ``` --- # headscale will look for a configuration file named `config.yaml` (or `config.json`) in the following order: # # - `/etc/headscale` # - `~/.headscale` # - current working directory # The url clients will connect to. # Typically this will be a domain like: # # https://myheadscale.example.com:443 # server_url: https://********:443 # Address to listen to / bind to on the server # # For production: listen_addr: 0.0.0.0:8080 #listen_addr: 127.0.0.1:8080 # Address to listen to /metrics, you may want # to keep this endpoint private to your internal # network # metrics_listen_addr: 127.0.0.1:9090 # Address to listen for gRPC. # gRPC is used for controlling a headscale server # remotely with the CLI # Note: Remote access _only_ works if you have # valid certificates. # # For production: grpc_listen_addr: 0.0.0.0:50443 #grpc_listen_addr: 127.0.0.1:50443 # Allow the gRPC admin interface to run in INSECURE # mode. This is not recommended as the traffic will # be unencrypted. Only enable if you know what you # are doing. grpc_allow_insecure: false # The Noise section includes specific configuration for the # TS2021 Noise protocol noise: # The Noise private key is used to encrypt the # traffic between headscale and Tailscale clients when # using the new Noise-based protocol. 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. # It must be within IP ranges supported by the Tailscale # client - i.e., subnets of 100.64.0.0/10 and fd7a:115c:a1e0::/48. # See below: # IPv6: https://github.com/tailscale/tailscale/blob/22ebb25e833264f58d7c3f534a8b166894a89536/net/tsaddr/tsaddr.go#LL81C52-L81C71 # IPv4: https://github.com/tailscale/tailscale/blob/22ebb25e833264f58d7c3f534a8b166894a89536/net/tsaddr/tsaddr.go#L33 # Any other range is NOT supported, and it will cause unexpected issues. prefixes: v6: fd7a:115c:a1e0::/48 v4: 100.64.0.0/10 # Strategy used for allocation of IPs to nodes, available options: # - sequential (default): assigns the next free IP from the previous given IP. # - random: assigns the next free IP from a pseudo-random IP generator (crypto/rand). allocation: sequential # DERP is a relay system that Tailscale uses when a direct # connection cannot be established. # https://tailscale.com/blog/how-tailscale-works/#encrypted-tcp-relays-derp # # headscale needs a list of DERP servers that can be presented # to the clients. derp: server: # If enabled, runs the embedded DERP server and merges it into the rest of the DERP config # The Headscale server_url defined above MUST be using https, DERP requires TLS to be in place enabled: false # Region ID to use for the embedded DERP server. # The local DERP prevails if the region ID collides with other region ID coming from # the regular DERP config. region_id: 999 # Region code and name are displayed in the Tailscale UI to identify a DERP region region_code: "headscale" region_name: "Headscale Embedded DERP" # Listens over UDP at the configured address for STUN connections - to help with NAT traversal. # When the embedded DERP server is enabled stun_listen_addr MUST be defined. # # For more details on how this works, check this great article: https://tailscale.com/blog/how-tailscale-works/ stun_listen_addr: "0.0.0.0:3478" # Private key used to encrypt the traffic between headscale DERP # and Tailscale clients. # The private key file will be autogenerated if it's missing. # private_key_path: /var/lib/headscale/derp_server_private.key # This flag can be used, so the DERP map entry for the embedded DERP server is not written automatically, # it enables the creation of your very own DERP map entry using a locally available file with the parameter DERP.paths # If you enable the DERP server and set this to false, it is required to add the DERP server to the DERP map using DERP.paths automatically_add_embedded_derp_region: true # For better connection stability (especially when using an Exit-Node and DNS is not working), # it is possible to optionally add the public IPv4 and IPv6 address to the Derp-Map using: ipv4: 1.2.3.4 ipv6: 2001:db8::1 # List of externally available DERP maps encoded in JSON urls: - https://controlplane.tailscale.com/derpmap/default # Locally available DERP map files encoded in YAML # # This option is mostly interesting for people hosting # their own DERP servers: # https://tailscale.com/kb/1118/custom-derp-servers/ # # paths: # - /etc/headscale/derp-example.yaml paths: [] # If enabled, a worker will be set up to periodically # refresh the given sources and update the derpmap # will be set up. auto_update_enabled: true # How often should we check for DERP updates? update_frequency: 24h # Disables the automatic check for headscale updates on startup disable_check_updates: false # Time before an inactive ephemeral node is deleted? ephemeral_node_inactivity_timeout: 30m database: # Database type. Available options: sqlite, postgres # Please note that using Postgres is highly discouraged as it is only supported for legacy reasons. # All new development, testing and optimisations are done with SQLite in mind. type: sqlite # Enable debug mode. This setting requires the log.level to be set to "debug" or "trace". debug: false # GORM configuration settings. gorm: # Enable prepared statements. prepare_stmt: true # Enable parameterized queries. parameterized_queries: true # Skip logging "record not found" errors. skip_err_record_not_found: true # Threshold for slow queries in milliseconds. slow_threshold: 1000 # SQLite config sqlite: path: /var/lib/headscale/db.sqlite # Enable WAL mode for SQLite. This is recommended for production environments. # https://www.sqlite.org/wal.html write_ahead_log: true # # Postgres config # Please note that using Postgres is highly discouraged as it is only supported for legacy reasons. # See database.type for more information. # postgres: # # If using a Unix socket to connect to Postgres, set the socket path in the 'host' field and leave 'port' blank. # host: localhost # port: 5432 # name: headscale # user: foo # pass: bar # max_open_conns: 10 # max_idle_conns: 10 # conn_max_idle_time_secs: 3600 # # If other 'sslmode' is required instead of 'require(true)' and 'disabled(false)', set the 'sslmode' you need # # in the 'ssl' field. Refers to https://www.postgresql.org/docs/current/libpq-ssl.html Table 34.1. # ssl: false ### TLS configuration # ## Let's encrypt / ACME # # headscale supports automatically requesting and setting up # TLS for a domain with Let's Encrypt. # # URL to ACME directory acme_url: https://acme-v02.api.letsencrypt.org/directory # Email to register with ACME provider acme_email: "" # Domain name to request a TLS certificate for: tls_letsencrypt_hostname: "*********" # Path to store certificates and metadata needed by # letsencrypt # For production: tls_letsencrypt_cache_dir: /var/lib/headscale/cache # Type of ACME challenge to use, currently supported types: # HTTP-01 or TLS-ALPN-01 # See [docs/tls.md](docs/tls.md) for more information tls_letsencrypt_challenge_type: HTTP-01 # When HTTP-01 challenge is chosen, letsencrypt must set up a # verification endpoint, and it will be listening on: # :http = port 80 tls_letsencrypt_listen: ":http" ## Use already defined certificates: tls_cert_path: "" tls_key_path: "" log: # Output formatting for logs: text or json format: text level: info ## Policy # headscale supports Tailscale's ACL policies. # Please have a look to their KB to better # understand the concepts: https://tailscale.com/kb/1018/acls/ policy: # The mode can be "file" or "database" that defines # where the ACL policies are stored and read from. mode: file # If the mode is set to "file", the path to a # HuJSON file containing ACL policies. path: "" ## DNS # # headscale supports Tailscale's DNS configuration and MagicDNS. # Please have a look to their KB to better understand the concepts: # # - https://tailscale.com/kb/1054/dns/ # - https://tailscale.com/kb/1081/magicdns/ # - https://tailscale.com/blog/2021-09-private-dns-with-magicdns/ # # Please note that for the DNS configuration to have any effect, # clients must have the `--accept-dns=true` option enabled. This is the # default for the Tailscale client. This option is enabled by default # in the Tailscale client. # # Setting _any_ of the configuration and `--accept-dns=true` on the # clients will integrate with the DNS manager on the client or # overwrite /etc/resolv.conf. # https://tailscale.com/kb/1235/resolv-conf # # If you want stop Headscale from managing the DNS configuration # all the fields under `dns` should be set to empty values. dns: # Whether to use [MagicDNS](https://tailscale.com/kb/1081/magicdns/). # Only works if there is at least a nameserver defined. magic_dns: true # Defines the base domain to create the hostnames for MagicDNS. # This domain _must_ be different from the server_url domain. # `base_domain` must be a FQDN, without the trailing dot. # The FQDN of the hosts will be # `hostname.base_domain` (e.g., _myhost.example.com_). base_domain: redteam.com # List of DNS servers to expose to clients. nameservers: global: - 1.1.1.1 - 1.0.0.1 - 2606:4700:4700::1111 - 2606:4700:4700::1001 # NextDNS (see https://tailscale.com/kb/1218/nextdns/). # "abc123" is example NextDNS ID, replace with yours. # - https://dns.nextdns.io/abc123 # Split DNS (see https://tailscale.com/kb/1054/dns/), # a map of domains and which DNS server to use for each. split: {} # foo.bar.com: # - 1.1.1.1 # darp.headscale.net: # - 1.1.1.1 # - 8.8.8.8 # Set custom DNS search domains. With MagicDNS enabled, # your tailnet base_domain is always the first search domain. search_domains: [] # Extra DNS records # so far only A-records are supported (on the tailscale side) # See https://github.com/juanfont/headscale/blob/main/docs/dns-records.md#Limitations extra_records: [] # - name: "grafana.myvpn.example.com" # type: "A" # value: "100.64.0.3" # # # you can also put it in one line # - { name: "prometheus.myvpn.example.com", type: "A", value: "100.64.0.3" } # DEPRECATED # Use the username as part of the DNS name for nodes, with this option enabled: # node1.username.example.com # while when this is disabled: # node1.example.com # This is a legacy option as Headscale has have this wrongly implemented # while in upstream Tailscale, the username is not included. use_username_in_magic_dns: false # Unix socket used for the CLI to connect without authentication # Note: for production you will want to set this to something like: unix_socket: /var/run/headscale/headscale.sock unix_socket_permission: "0770" # # headscale supports experimental OpenID connect support, # it is still being tested and might have some bugs, please # help us test it. # OpenID Connect # oidc: # only_start_if_oidc_is_available: true # issuer: "https://your-oidc.issuer.com/path" # client_id: "your-oidc-client-id" # client_secret: "your-oidc-client-secret" # # Alternatively, set `client_secret_path` to read the secret from the file. # # It resolves environment variables, making integration to systemd's # # `LoadCredential` straightforward: # client_secret_path: "${CREDENTIALS_DIRECTORY}/oidc_client_secret" # # client_secret and client_secret_path are mutually exclusive. # # # The amount of time from a node is authenticated with OpenID until it # # expires and needs to reauthenticate. # # Setting the value to "0" will mean no expiry. # expiry: 180d # # # Use the expiry from the token received from OpenID when the user logged # # in, this will typically lead to frequent need to reauthenticate and should # # only been enabled if you know what you are doing. # # Note: enabling this will cause `oidc.expiry` to be ignored. # use_expiry_from_token: false # # # Customize the scopes used in the OIDC flow, defaults to "openid", "profile" and "email" and add custom query # # parameters to the Authorize Endpoint request. Scopes default to "openid", "profile" and "email". # # scope: ["openid", "profile", "email", "custom"] # extra_params: # domain_hint: example.com # # # List allowed principal domains and/or users. If an authenticated user's domain is not in this list, the # # authentication request will be rejected. # # allowed_domains: # - example.com # # Note: Groups from keycloak have a leading '/' # allowed_groups: # - /headscale # allowed_users: # - alice@example.com # # # If `strip_email_domain` is set to `true`, the domain part of the username email address will be removed. # # This will transform `first-name.last-name@example.com` to the user `first-name.last-name` # # If `strip_email_domain` is set to `false` the domain part will NOT be removed resulting to the following # user: `first-name.last-name.example.com` # # strip_email_domain: true # Logtail configuration # Logtail is Tailscales logging and auditing infrastructure, it allows the control panel # to instruct tailscale nodes to log their activity to a remote server. logtail: # Enable logtail for this headscales clients. # As there is currently no support for overriding the log server in headscale, this is # disabled by default. Enabling this will make your clients send logs to Tailscale Inc. enabled: false # Enabling this option makes devices prefer a random port for WireGuard traffic over the # default static port 41641. This option is intended as a workaround for some buggy # firewall devices. See https://tailscale.com/kb/1181/firewalls/ for more information. randomize_client_port: false ### Environment ```markdown - OS:Ubuntu 24.04.1 - Headscale version:v0.23.0 $ sudo ss -tulnp|grep headscale tcp LISTEN 0 128 127.0.0.1:9090 0.0.0.0:* users:(("headscale",pid=1861,fd=16)) tcp LISTEN 0 128 *:8080 *:* users:(("headscale",pid=1861,fd=15)) tcp LISTEN 0 128 *:50443 *:* users:(("headscale",pid=1861,fd=13)) tcp LISTEN 0 128 *:80 *:* users:(("headscale",pid=1861,fd=14)) NSG is allowing inbound traffic to ports 22, 80, 8080, 443, and 50443 ``` ### Runtime environment - [ ] Headscale is behind a (reverse) proxy - [X] Headscale runs in a container ### Anything else? _No response_ ```
adam added the bug label 2025-12-29 02:24:43 +01:00
adam closed this issue 2025-12-29 02:24:43 +01:00
adam commented 2025-12-29 02:24:44 +01:00
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@nblock commented on GitHub (Oct 31, 2024):

Picked up your config and adjusted the "****" parts and paths to keys/db.

Started with (works):

sudo ./releases/0.23.0/headscale_0.23.0_linux_amd64 -c config.yaml serve
2024-10-31T14:44:25+01:00 WRN 
WARN: The "dns.use_username_in_magic_dns" configuration key is deprecated and has been removed. Please see the changelog for more details.

2024-10-31T14:44:25+01:00 INF Opening database database=sqlite3 path=db.sqlite
2024-10-31T14:44:25+01:00 INF Setting up a DERPMap update worker frequency=86400000
2024-10-31T14:44:25+01:00 INF Enabling remote gRPC at 0.0.0.0:50443
2024-10-31T14:44:25+01:00 INF listening and serving gRPC on: 0.0.0.0:50443
2024-10-31T14:44:25+01:00 INF listening and serving HTTP on: 0.0.0.0:8080
2024-10-31T14:44:25+01:00 INF listening and serving debug and metrics on: 127.0.0.1:9090

Are you really sure that no other instance is running (maybe as systemd service, maybe a container?)? I get the same error when trying to start headscale a second time in another terminal.

It seems you are running another config than the one you posted, have a look at the line:

2024-10-31T12:50:16Z INF Enabling remote gRPC at :50443

With your config it should say: Enabling remote gRPC at 0.0.0.0:50443

@nblock commented on GitHub (Oct 31, 2024): Picked up your config and adjusted the "****" parts and paths to keys/db. Started with (works): ```shell sudo ./releases/0.23.0/headscale_0.23.0_linux_amd64 -c config.yaml serve 2024-10-31T14:44:25+01:00 WRN WARN: The "dns.use_username_in_magic_dns" configuration key is deprecated and has been removed. Please see the changelog for more details. 2024-10-31T14:44:25+01:00 INF Opening database database=sqlite3 path=db.sqlite 2024-10-31T14:44:25+01:00 INF Setting up a DERPMap update worker frequency=86400000 2024-10-31T14:44:25+01:00 INF Enabling remote gRPC at 0.0.0.0:50443 2024-10-31T14:44:25+01:00 INF listening and serving gRPC on: 0.0.0.0:50443 2024-10-31T14:44:25+01:00 INF listening and serving HTTP on: 0.0.0.0:8080 2024-10-31T14:44:25+01:00 INF listening and serving debug and metrics on: 127.0.0.1:9090 ``` Are you *really* sure that no other instance is running (maybe as systemd service, maybe a container?)? I get the same error when trying to start headscale a second time in another terminal. --- It seems you are running another config than the one you posted, have a look at the line: ``` 2024-10-31T12:50:16Z INF Enabling remote gRPC at :50443 ``` With your config it should say: ` Enabling remote gRPC at 0.0.0.0:50443`
adam commented 2025-12-29 02:24:44 +01:00
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@khairul169 commented on GitHub (Nov 1, 2024):

From your sudo ss -tulnp | grep headscale output, it seems that you already have an instance of Headscale running in the background (PID: 1861). You may want to try killing it.

If you’re running Headscale in a container, please check your list of running processes with docker ps | grep headscale and stop it if necessary.

@khairul169 commented on GitHub (Nov 1, 2024): From your `sudo ss -tulnp | grep headscale` output, it seems that you already have an instance of Headscale running in the background (PID: 1861). You may want to try killing it. If you’re running Headscale in a container, please check your list of running processes with `docker ps | grep headscale` and stop it if necessary.
adam commented 2025-12-29 02:24:44 +01:00
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@nblock commented on GitHub (Dec 10, 2024):

Closing due to missing feedback.

@nblock commented on GitHub (Dec 10, 2024): Closing due to missing feedback.
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