resolver

Syntax:	`resolver address ... [valid=time] [ipv6=on\|off];`
Default:	—
Context:	`stream`, `server`

This directive appeared in version 1.11.3.

Configures name servers used to resolve names of upstream servers into addresses, for example:

resolver 127.0.0.1 [::1]:5353;

An address can be specified as a domain name or IP address, and an optional port. If port is not specified, the port 53 is used. Name servers are queried in a round-robin fashion.

By default, nginx will look up both IPv4 and IPv6 addresses while resolving. If looking up of IPv6 addresses is not desired, the ipv6=off parameter can be specified.

By default, nginx caches answers using the TTL value of a response. The optional valid parameter allows overriding it:

resolver 127.0.0.1 [::1]:5353 valid=30s;

Before version 1.11.3, this directive was available as part of our commercial subscription.

Links:

https://nginx.org/en/docs/stream/ngx_stream_core_module.html#resolver

doc_nginx

2017-02-09 07:08:44

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