### Structure ```json { "dns": { "servers": [ { "tag": "google", "address": "tls://dns.google", "address_resolver": "local", "address_strategy": "prefer_ipv4", "strategy": "ipv4_only", "detour": "direct" } ] } } ``` ### Fields #### tag The tag of the dns server. #### address ==Required== The address of the dns server. | Protocol | Format | |--------------------------------------|-------------------------------| | `System` | `local` | | `TCP` | `tcp://1.0.0.1` | | `UDP` | `8.8.8.8` `udp://8.8.4.4` | | `TLS` | `tls://dns.google` | | `HTTPS` | `https://1.1.1.1/dns-query` | | `QUIC` | `quic://dns.adguard.com` | | `HTTP3` | `h3://8.8.8.8/dns-query` | | `RCode` | `rcode://refused` | | `DHCP` | `dhcp://auto` or `dhcp://en0` | | [FakeIP](/configuration/dns/fakeip/) | `fakeip` | !!! warning "" To ensure that system DNS is in effect, rather than Go's built-in default resolver, enable CGO at compile time. !!! warning "" QUIC and HTTP3 transport is not included by default, see [Installation](./#installation). !!! info "" the RCode transport is often used to block queries. Use with rules and the `disable_cache` rule option. !!! warning "" DHCP transport is not included by default, see [Installation](./#installation). | RCode | Description | |-------------------|-----------------------| | `success` | `No error` | | `format_error` | `Format error` | | `server_failure` | `Server failure` | | `name_error` | `Non-existent domain` | | `not_implemented` | `Not implemented` | | `refused` | `Query refused` | #### address_resolver ==Required if address contains domain== Tag of a another server to resolve the domain name in the address. #### address_strategy The domain strategy for resolving the domain name in the address. One of `prefer_ipv4` `prefer_ipv6` `ipv4_only` `ipv6_only`. `dns.strategy` will be used if empty. #### strategy Default domain strategy for resolving the domain names. One of `prefer_ipv4` `prefer_ipv6` `ipv4_only` `ipv6_only`. Take no effect if override by other settings. #### detour Tag of an outbound for connecting to the dns server. Default outbound will be used if empty.