I need to migrate a medium-sized root server from SysCP to ISPConfig. Points I need to consider: The root server is accessible only via SSH. If things go ugly I can use a rescue system and/or a KVM switch, but things are getting slow. I have to deal with approx. 50 users, 150 domains, 300 mail accounts. Minimize downtime. Half a day once is acceptable, daily half a day over a couple of weeks until I get the last migration problem fixed is not. Migrating passwords. Can ISPConfig decode whatever password formats SysCP might have used in its lifetime, or do I need to tell users to reset their passwords? (Some users are really incompetent and will have serious trouble with that.) I'd like to test drive the migration inside a virtual machine. Optimally, that would be a whole virtual network consisting of a virtual DNS root, mail senders and recipients, and HTTP client. I suppose this virtual environment is best setup on my local machine, just to test the migration. Does anybody have pointers to recipes for doing this? The existing server runs a Ubuntu LTS. I'm considering switching back to Debian, or possibly something that updates a bit quicker without sacrificing stability. However, the prime factor for selecting a distro would be "what ISPConfig runs best on", simply because the machine's primary purpose will be to serve ISPConfig-managed domains. Optionally, I'd like to add this: Migrate the web roots from /var/www/webs/<user> to /home/<user>/webs/. Enforce that new web roots are created at least one directory away from /home/<user>/webs/. Any advice appreciated. Thanks!