Host/Domainname change in: The Perfect Server-Debian Lenny (Debian 5.0) [ISPConfig 2]

[edge]

I've just done "The Perfect Server - Debian Lenny (Debian 5.0) [ISPConfig 2]", and the server is now located in the DC

I made a misstake with the hostname / domain name, and now I want to change this remotely.
Example old: server1.example.com new: new.name.com
(problem is that I now have 2 servers with same hostname & domain name)

This is what I'm sure that I need to do (all done over SSH):
1)
edit /etc/hosts and change the
server1.example.com to new.name.com

2) do a
echo new.name.com > /etc/hostname
/etc/init.d/hostname.sh start
and verify if both are set the same with:
hostname
hostname -f

Now I'm stuck.
In the howto on page 4 step 12
How do I change the System mail name from server1.example.com to new.name.com, and how do I configure Postfix for the new TLS.
Do I just edit the needed data in: /etc/postfix/main.cf, delete the SSL certificates and re-create the SSL certificates?

Also.. Am I missing any other needed files that I need to change?
The setup is only a clean install of Lennt done the "The Perfect Server - Debian Lenny (Debian 5.0) [ISPConfig 2]" way.

The system is not running ISPconfig at the moment, so I'm okay on this.

[falko]

Do I just edit the needed data in: /etc/postfix/main.cf, delete the SSL certificates and re-create the SSL certificates?Yes, that's right.

Also.. Am I missing any other needed files that I need to change?

You might as well have to change the hostnames in the mysql.user table.

[edge]

I'll get back on this.
Maybe I will do a re-install (I need to go to the DC anyway)