I am not familiar with HAProxy so if suits you well, go for it. I will stay with the ISPConfig mirror dns server setup for a little while longer. I thought the referred tutorial (https://www.howtoforge.com/tutorial...abase-cluster-on-debian-8.4-with-ispconfig-3/) already covers database cluster from master server to slave server @till? Both dns server - server1 and server2 - should have the same database via this tutorial. Mirroring server2 to server1 following another tutorial (https://www.howtoforge.com/how-to-r...and-secondary-with-ispconfig-3-debian-squeeze) after the above should not affect the database cluster, right?