I know Its been asked many times before, and answered many times, but thats made it confusing to me.
I found these steps provided by Till
Originally Posted by till
The migration steps are:
1) Install the same ispconfig version on the second server.
2) move all lines for the web* and client* users and groups from /etc/passwd and /etc/shadow and /etc/group and /etc/gshadow to the same files on the new server. Copy just these lines and not the whole files!
3) Copy the /var/www and /var/vmail directories to the new server. Make sure that you preserve permissions by e.g. using these tar commands:
tar pcfz www.tar.gz
tar pcfz vmail.tar.gz /var/vmail
4) Move the ispconfig mysql database to the new server and also move all client databases to the new server.
But these are from April 2010, so is this still the way to go?