Hello!

On Thu, Mar 27, 2014 at 12:29:03PM -0400, Jim Popovitch wrote:

> Should proxy_pass retry ipv4 if ipv6 fails? Currently (1.5.12), it
> does not, and there is no way to force proxy_pass to always use ipv4.

In no particular order:

- The proxy_next_upstream is expected to retry by default.

- There _is_ a way to force proxy_pass to always use ipv4 - you
should configure your system accordingly, and
getaddrinfo(AI_ADDRCONFIG) as used by nginx will do the right
thing. E.g., on Linux net.ipv6.conf.all.disable_ipv6 can be set
to disable use of ipv6.

--
Maxim Dounin
http://nginx.org/

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