install on nat server that uses DHCP?

[authsum]

I am trying to install zimbra on on an amazon elastic cloud instance.

I have a static external ip address (elastic ip address) with a dns entry and MX records pointing to this external ip address.

mail.pimpmyclone.com

When I attempt to install zimbra, it wants to use the dhcp name of the server, which is subject to change. I see others have done this and their install breaks on a restart of their server.

I read about the split dns setup, but this still assumes a static ip address on the server. I tried changing the domain for the install to (pimpmyclone.com) but because this is the external interface for the server, the installation will not continue.

Any ideas on how to proceed with this problem? I included the text message that zimbra gave when it could not proceed with my domain name change.
Thank you!
Phillip


Operations logged to /tmp/zmsetup.04032008-134529.log
Setting defaults...

DNS ERROR resolving MX for domU-12-31-35-00-00-84.z-2.compute-1.internal
It is suggested that the domain name have an MX record configured in DNS
Change domain name? [Yes]
Create Domain: [domU-12-31-35-00-00-84.z-2.compute-1.internal] pimpmyclone.com
MX: mail.pimpmyclone.com (75.101.146.184)
MX: mx5.biz.mail.yahoo.com (66.196.126.37)
MX: mx5.biz.mail.yahoo.com (68.142.224.244)

Interface: 10.255.7.114
Interface: 127.0.0.1


DNS ERROR - none of the MX records for pimpmyclone.com
resolve to this host
It is suggested that the MX record resolve to this host
Re-Enter domain name? [Yes]

[dwmtractor]

You might have a look at this thread. Several people have done dynamic DNS setups with varying degrees of success, but this thread tells you a good deal about what does and doesn't work.