# Features - Headscale
An open source, self-hosted implementation of the Tailscale control server.
Author: Headscale authors

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# Features

Headscale aims to implement a self-hosted, open source alternative to the Tailscale control server. Headscale's goal is to provide self-hosters and hobbyists with an open-source server they can use for their projects and labs. This page provides on overview of headscale's feature and compatibility with the Tailscale control server:

- Full "base" support of Tailscale's features
- Node registration
  - Interactive
  - Pre authenticated key
- DNS
  - MagicDNS
  - Global and restricted nameservers (split DNS)
  - search domains
  - Extra DNS records (headscale only)
- Taildrop (File Sharing)
- Routing advertising (including exit nodes)
- Dual stack (IPv4 and IPv6)
- Ephemeral nodes
- Embedded DERP server
- Access control lists (GitHub label "policy")
  - ACL management via API
  - `autogroup:internet`
  - `autogroup:self`
  - `autogroup:member`
- Node registration using Single-Sign-On (OpenID Connect) (GitHub label "OIDC")
  - Basic registration
  - Update user profile from identity provider
  - Dynamic ACL support
  - OIDC groups cannot be used in ACLs
- Funnel (#1040)
- Serve (#1234)