Check the logs of the apache server. You might need to tweak the proxy_*_timeout settings in nginx , but usually its the problem with the upstream server that is causing this. try connecting to the upstream via http://domain:port directly and you should face the error.
On Tue, Sep 13, 2016 at 3:22 PM, hheiko <nginx-fo...@forum.nginx.org> wrote: > I don't think there is an OS relation on the frontend, the same problem > occurs with an Centos Nginx as Reverse proxy in front of 3 Apache backends > on Centos - but it never occurs on windows based Apache backends... > > But we´re on version 1.11.4.1 Lion (http://nginx-win.ecsds.eu) > > Posted at Nginx Forum: > https://forum.nginx.org/read.php?2,268306,269511#msg-269511 > > _______________________________________________ > nginx mailing list > nginx@nginx.org > http://mailman.nginx.org/mailman/listinfo/nginx -- Anoop P Alias _______________________________________________ nginx mailing list nginx@nginx.org http://mailman.nginx.org/mailman/listinfo/nginx
