Dear Till, I have a system with 3 servers, on 1st server I have all ISPConfig functions, on 2nd server all functions except graphical interface, DNS mirroring, on 3rd only DNS mirroring to provide 2nd DNS service. The servers are now pretty much outdated and I am seeking for the best method to transfer the ISPConfig system with all the tenants and their data to a new environment with only 2 servers, having all functionalities on the 1st one and all functionalities but DNS mirroring only on the 2nd one. This move will likely also bear an IP Address change with, and here the domains shall be than manually changed to the new IP or there is also a script for that? I am looking for the best practice to do the move and consolidation under the same operation. Thank you for your help in advance! Cheers, Feri
You can do the migration with the ISPConfig migration tool. The tool does not alter the IP addresses in DNS, you can change them when the migration is finished with a SQL query in the dns_rr table of the ISPConfig database and then use Tools > Resync to write the changes to disk.
Hi Till, many thanks for your prompt reply! Would it also work if after the transfer has been completed I would shut down the old servers and change the IP of the new ones back to the old IPs? In that case what else shall be configured than the IP of the interface?
In that case, you probably just have to alter the IP address in the network interface config file and restart networking, as the Migration tool imports the IP's as they are, so there should be no changes in ISPConfig be required.
Manually created SSL certs of websites get copied with the website. If you use letsencrypt, then I recommend to copy over the /etc/letsencrypt folder from old to new server before you start the migration. We are working to include the step of copying /etc/letsencrypt into the tool, but until now, you have to do that manually first.
