we have installed zimbra 5.0.9 as a multi server installation (2 x Proxy, 1 MTA In, 1 MTA Out, 2 x Mailbox and 1 master LDAP and 1 replica LDAP).
We are working on that installation and found out that if we shut down one Mailbox server we get often a 502 error when we try to reach our log in page.
The reason for that 502 is a GET request from the nginx to the shut down Mailbox server trying to download the /zimba/. So to prevent that 502 errors we are searching for a solution to get the shut down mailbox server out of the ngix configuration to let the nginx server send all requests to the up and running Mailbox server.
Does anybody of you know how we can configure that?
Thanks for your help.