Since sing-box 1.12.0
Tailscale
Structure
{
  "dns": {
    "servers": [
      {
        "type": "tailscale",
        "tag": "",
        "endpoint": "ts-ep",
        "accept_default_resolvers": false
      }
    ]
  }
}
Fields
endpoint
Required
The tag of the Tailscale Endpoint.
accept_default_resolvers
Indicates whether default DNS resolvers should be accepted for fallback queries in addition to MagicDNS。
if not enabled, NXDOMAIN will be returned for non-Tailscale domain queries.