I have to change the etc/hosts file as stated in the instructions below, but don't know how to do that. Can anyone give me instructions on how to do this. I'm running the Virtual Appliance of Zimbra.
Important: Make sure that FQDN entry in /etc/hosts appears before the hostnames. If this is missing, the creation of the Zimbra certificate fails. The FQDN entry should look like this example. See zmcreatecert in the Administratorís Guide, CLI Commands appendix.
127.0.0.1 localhost.localdomain localhost
your.ip.address FQDN yourhostname