The scenario is I have one master debian lenny running ispconfig3.3.3 hosting a couple of sites, emails, dns, and databases. Slave a is in a datacentre and relies very little on the master other than to manage it and a coupe of DNS records. Slave b is a mirror of Master with limited databases replicated (some of which are old) and using rsync to copy the contents of just the websites I believe. Master has suffered a catastrophic failure and is at a remote location. I can't get it to boot. People who can see it tell me it reports a grub error 25. I won't be able to get to this Master until much later in the week. Master and Slave B both sit behind a router which uses port forwarding to send all traffic to Master. The good news is, I've managed to now get the router to diver all traffic to Slave B. Slave B is now serving up DNS records (which master previously did) and serve older versions of the websites... which is good for now. So, my first task is I want to get Slave B to act as the Master now. How do I do this? The other good news that will hopefully assist with this is, I have been using go0ogl3's script to make backups of the master : http://howtoforge.com/forums/showthread.php?t=41609 Master and Slave B do have different host names. Is this and issue? Their IP addresses shouldn't be an issue as they sat behind a router which would obviously be their public IP apparant to slave A. The next task will be once I've looked at the problems on the failed Master, ie build a new one or permanently promote slave B to Master. Your help is MUCH appreciated.