hosts file problem, installing on ubuntu 8.04

[onjinc]

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[phoenix]

I am able to ping google and any other public domain without a problem. So I know DNS is working fine.

That really doesn't prove anything other than you can ping an outside server.

-Public ip is on the primary nic (it is dual homed but not using second nic)
-hostname set at mydomain.com
-DNS set for our ISPs DNS servers
-MX records show mail.mydomain.com using dig command

Then you should post the output of the following commands to show that your DNS is OK (run these on the Zimbra server):

cat /etc/hosts
cat /etc/resolv.conf
dig yourdomain.com any
dig yourdomain.com mx
host `hostname` <- run that exact command with backticks not single quotes

-and host file set as above

Your hosts file is incorrect, this line:

127.0.0.1 localhost

Should look like this:

127.0.0.1 localhost.localdomain localhost

as per the Quick Start Installation Guide.

[onjinc]

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[onjinc]

Also, after changing to the above hosts file I still have the same error during installation.

[phoenix]

The DNS server at 208.67.222.222 is not returning the same information as the other server, you have an incorrect A record (or no A record) in that server. If you're going to use two server they should have identical records in them.