Hi, i've just installed a pair of ISPConfig 3.02 servers, both following "The Perfect Server" instructions, but the second one with the expert setup, to create it as slave of the first one. The installation finished without errors. I noticed that in the mysql user table of the master server, there is a new user "ispcsrv3", i guess that is used to the replication, and i guess it does have no more than the required permissions (i was afraid that root user was used when required in installation, so nice surprise). From here, i didnt find any specific documentation to this multiserver setup, only diversificated posts in this forum, do i decided to start some tests to check the behaviour, but i have some questions, so maybe someone can gently enlight me. I understand that the replication process is one direction only, that way i see that clients and templates created on master, are seen also in slave, but not in the other direction. This is working for me. I can also choose the server when adding a new service (like mail or web). Checking the mydns behaviour in both servers, i see that templates created in master, are accessible from slave, but not in the other direction. I guess that is the expected behaviour. But when i create a zone in the master, it doesnt appear in the slave server, obviously in the other direction neither work. If i create the zones in both servers, updating a registry in the master doesnt update it in the slave. Maybe i am missing some step ? There is some way to debug it ? other questions , if master server is down, the slave can still work and serve their associated resources (with the replicated info in their db) ? If i make changes in a service from slave control panel, in a service created from master, the db,s will be desynced ? There is any chance that the replication process delete information created directly from slave control panel ? is then the expected action to always work from master control panel ? Is the replication transaction ssl secured ? Is there any list of prefix/templates variables anywhere ? there are variables for "Allow zone transfers","Also notify","Update ACL" in dns template ? Thanks all.