host-resolver

Resolve real IP addresses by querying DNS servers.

Access Points

• resolver: Resolver. Resolve domain names to real IP addresses.

Parameters

{
  "udp": ["redir-8888.udp", "redir-8844.udp"],
  "tcp": ["redir-8888.tcp", "redir-8844.tcp"],
  "doh": [{
    "url": "https://1.1.1.1/dns-query",
    "next": "tls-client.tcp"
  }]
}

• udp: Descriptor of the Datagram Session Outbounds to send DNS requests.
• tcp: Descriptor of the Stream Outbounds to send DNS requests. Not used as of YtFlowCore 0.1.
• doh (optional): Descriptors of RFC 8484 DNS-over-HTTPS endpoints
  • doh[].url: absolute URL of the endpoint. Outbound requests (in plaintext) will be sent to this URL. For https URLs, a tls-client plugin should be present in the outbound chain specified by doh[].next. Cautious should be taken when using domain names in the host part, which may cause infinite loops if the outbound chain references the plugin itself. A redirect plugin is not needed as the Stream destination is set to the authority part of the URL.
  • doh[].next: Descriptor of the Stream Outbound to establish new outbound Streams.

Details

The host-resolver plugin is powered by trust_dns_resolver.

The DNS-over-HTTPS functionality is powered by hyper HTTP Client. Both h2 and http/1.1 are supported. h2 will be used when selected by the lower layer tls-client plugin through ALPN.

Revision History

• 2023-04-29: Removed map_back related content.
• 2023-06-05: Added doh.