On Wed, Dec 7, 2011 at 2:52 PM, Ivan Martinez <[email protected]>wrote:
> In a CentOS 6 server, I'm running Varnish in port 80 serving pages from a > Zotonic site in port 8000. It works fine when I leave all the ports open. > However, if I close all ports from 0 to 631 and explicitly open 80 and > 8000, the following happens: > > - I can see the website in server:8000. > - In server:80, I get the following after some seconds: > > Error 503 Service Unavailable > > Service Unavailable > Guru Meditation: > > XID: 544990083 > > Varnish cache server > Error 503 happens when Varnish could not contact any backends. You can check if a backend is up and healthy using the command: varnishadm -T localhost:<adm_port> debug.health The backend must be healthy. If it's sick, it means that varnish can't connect on port server:8000 on your site for some reason (nc/telnet/wget/curl can be useful to test here). Check if the firewall is blocking the output, and it's accepting established/related connections on the backend. -- []'s Hugo www.devin.com.br
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