Error 503

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Error 503

Postby too » Tue Jul 26, 2016 6:57 am

New install for both Zimbra Talk and ZCS 8.6P7.
I got 503 error after login to Zimbra. I tried change nginx config but it does not help. Anything else to check.


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Re: Error 503

Postby DualBoot » Tue Jul 26, 2016 2:36 pm

it seems you have a difference between what you see and what you really get.
Network traces show 404 error "proxy?target=https..."

I think you should check the target the proxy try to join.
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Re: Error 503

Postby jorgedlcruz » Wed Jul 27, 2016 1:23 pm

Are you using a valid SSL on the Zimbra Talk server?
Have you configured properly the Proxy part on Zimbra?

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Re: Error 503

Postby too » Wed Jul 27, 2016 2:17 pm

I use commercial wildcard certificate. Proxy enable as instruction.

I got some error from prosody.log

Jul 27 21:15:03 s2sout24f4a90 info Sending error replies for 1 queued stanzas because of failed outgoing connection to
Jul 27 21:15:10 s2sin19fd2e0 info Incoming s2s stream> closed: This host does not serve
Jul 27 21:15:10 s2sout175b7f0 info Session closed by remote with error: host-unknown (This host does not serve
Jul 27 21:15:10 s2sout175b7f0 info Outgoing s2s stream> closed: host-unknown (This host does not serve

on zimbra server domain name user e-mail is
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Re: Error 503

Postby jamscomputer » Wed Nov 09, 2016 12:13 pm


I have the same error such as the picture, how i can configure the proxy target?

¿Can you help me with this?

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Re: Error 503

Postby sensor » Wed Nov 09, 2016 5:36 pm

The error in the picture is clearly a misconfiguration. The actual target parameter in these calls is determined from what you configure in Admin UI for Zimbra Talk Zimlet. This is what is shown at the end of the talk server installation.
The cause for these calls returning a 404 is one of these:
- zimbra mailboxd is not able to resolve the hostname of the talk server
- zimbra mailboxd is not able to connect to the talk server
- the talk server does not use certificate trusted by zimbra mailboxd
- the setting for zimbraProxyAllowedDomains was not done correctly (chech your COS!)
- zimbra mailboxd is configured to use some proxy that is not able to connect to the talk server

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