I struggled to get the system to work under Suse 12 and had to leave the mail on a suse11 machine. Attempting to upgrade to 13 has finally caused me to end my support for it since Suse 7 so I decided tp move to Debian 7.8 after reading a comment that the installation could be completed in 45 minutes, I must have misread that as it took 4.5 hours. After porting the sites and database from the suse machine and adjusting all the symlinks, all the websites are working fine and so is phpmyadmin but logging in to ispc3 fails for all users, pure-ftp connections fail at password authentication and pop3 connections also fail. It looks like ispc3 can't access the db. I have followed the suggestions in an old thread but apt-get install --reinstall php5-mysql didn't help. I can log into mysql locally and via phpmyadmin. I don't recognise the password in /usr/local/ispconfig/interface/lib/config.inc.php itis not present in the sys_user table.