Hello All, I am trying to do a migration of ispconfig3 and all data from the old server - CentOS 6.6 to a new one CentOS 7. Initially i had trouble setting up the target ispconfig3 on CentOS 7 following the perfect guide: Couldn't access the admin page after installing ispconfig3, the firewall rules were not applied correctly. I traced this to the bug with adding the proper name of the interface in /usr/local/ispconfig/server/conf/bastille-firewall.cfg.master This may help any one facing this problem on CentOS 7, depending if its vm or hardware setup it may be ens+ or eno+ etc... Anyway to continue with my next problem, and that is after i copied the data to the new server and doing the resync i am left with a Internal Server Error. I have followed the general guidelines here on the forums regarding data migration: - Copy all web user lines from the /etc/passwd and /etc/shadow on the new system. - Copy all client groups lines from the /etc/group and /etc/gshadow files to the new system. - Copy the folder /var/vmail, /var/www and /var/log/ispconfig to the new server (with keeping attributes). - Copy the ISPConfig mysql database on the new server. I did a full dump and after importing changed the ispconfig user with the new password from the configuration files on the new CentOS 7 install. There is entry from /var/log/httpd/error_log mod_fcgid: error reading data from FastCGI server, End of script output before headers: index.php Does anyone have some clues as what is wrong and how to troubleshoot this migration further. Thanks, Jovan.