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headscale/docs/Configuration.md
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Configuration reference

Headscale will look for a configuration file named config.yaml (or config.json) in the following order:

  • /etc/headscale
  • ~/.headscale
  • current working directory
server_url: http://headscale.mydomain.net
listen_addr: 0.0.0.0:8080
ip_prefix: 100.64.0.0/10

server_url is the external URL via which Headscale is reachable. listen_addr is the IP address and port the Headscale program should listen on. ip_prefix is the IP prefix (range) in which IP addresses for nodes will be allocated (default 100.64.0.0/10, e.g., 192.168.4.0/24, 10.0.0.0/8)

log_level: debug

log_level can be used to set the Log level for Headscale, it defaults to debug, and the available levels are: trace, debug, info, warn and error.

private_key_path: private.key

private_key_path is the path to the Wireguard private key. If the path is relative, it will be interpreted as relative to the directory the configuration file was read from.

derp_map_path: derp.yaml

derp_map_path is the path to the DERP map file. If the path is relative, it will be interpreted as relative to the directory the configuration file was read from.

ephemeral_node_inactivity_timeout": "30m"

ephemeral_node_inactivity_timeout is the timeout after which inactive ephemeral node records will be deleted from the database. The default is 30 minutes. This value must be higher than 65 seconds (the keepalive timeout for the HTTP long poll is 60 seconds, plus a few seconds to avoid race conditions).

PostgresSQL

db_host: localhost
db_port: 5432
db_name: headscale
db_user: foo
db_pass: bar

SQLite

db_type: sqlite3
db_path: db.sqlite

The fields starting with db_ are used for the DB connection information.

TLS configuration

Please check TLS.md.

DNS configuration

Please refer to DNS.md.

Policy ACLs

Headscale implements the same policy ACLs as Tailscale.com, adapted to the self-hosted environment.

For instance, instead of referring to users when defining groups you must use namespaces (which are the equivalent to user/logins in Tailscale.com).

Please check https://tailscale.com/kb/1018/acls/, and ./tests/acls/ in this repo for working examples.

Apple devices

An endpoint with information on how to connect your Apple devices (currently macOS only) is available at /apple on your running instance.