How to disable ipv6 in nginx?
roughlea at hotmail.co.uk
Thu Nov 15 14:36:48 UTC 2018
Hi Francis and Maxim,
Cheers, that solved it. Used 127.0.0.1 and works like a charm. Will remove the resolver from my config.
Thanks for the explanations.
> On 15 Nov 2018, at 14:24, Maxim Dounin <mdounin at mdounin.ru> wrote:
> On Thu, Nov 15, 2018 at 11:10:08AM +0000, rough lea wrote:
>> I am a newbie running tusd server on macos High Sierra behind an
>> Nginx Proxy running within a docker container. In the logs, I
>> notice that before an _UploadCreated_ event is received there is
>> an attempt to connect to tusd using ipv6 loopback address which
>> _[crit] 23#23: *4 connect() to [::1]:1080 failed (99: Address not available) while connecting to upstream, client: 172.22.0.1, server: , request: "POST /files/ HTTP/1.1", upstream: "http://[::1]:1080/files/", host: "test.example.com:1081"_
>> My nginx configuration is listed below…..
>> proxy_pass http://localhost:1080/files/;
>> If I take out the line, _listen
>> [::]:1081 http2 ipv6only=on ssl;_ from the server config block,
>> the issue still occurs.
> The error is about connecting to "[::1]:1080" backend, as per
> proxy_pass in your configuration. Adding or removing listening
> sockets in nginx is not expected change things.
>> Upon further reading at
>> [docker](https://docs.docker.com/config/daemon/ipv6/) and
>> it appears that ipv6 networking is only available for docker
>> daemons running on Linux hosts???
> The error (Address not available) suggests that this is indeed an
> issue in Docker.
>> I have tried adding a resolver and setting ipv6only=off but
>> nginx seems to continue to try and send to the upstream proxy
>> with an ipv6 address.
> When a name is known during configuration parsing, nginx will
> use normal system-provided name resolution, as available via
> the getaddrinfo() function.
> A resolver is only used once nginx does a run-time resolution of
> domain names, and cannot use getaddrinfo() as the interface is
>> How can I get nginx to use ipv4 only? Has anybody else
>> experienced and resolved the same issue?
> The is no way to globally disable IPv6 in nginx. Instead,
> consider one of the following options:
> - when you want nginx to use IPv4 addresses only, use names which
> resolve to IPv4 addresses only (or use IPv4 addresses directly);
> - configure your system resolver to do not return IPv6 addresses
> (usually this happens automatically when you do not have IPv6
> configured on the host).
> In your particular case, writing something like
> proxy_pass http://127.0.0.1:8080/files/;
> with "127.0.0.1" IPv4 address explicitly used instead of
> "localhost" should be enough.
> Maxim Dounin
> nginx mailing list
> nginx at nginx.org
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