Hello, I am about to setup an ispconfig multiserver conf with a local network thanks to VPN (and @pyte to setup wireguard ...) Here is what I have : A local network for all my servers 10.66.66.1, 10.66.66.2, etc... For each servers a file /etc/hosts, with local adresses Now, I would like to know what to do with ispconfig server conf. in system>server config>server>IP addresses are external (my ispconfig multiserver conf existed before that VPN local network) My goal is to have mariadb data transfert between servers through wireguard. What should I do for system>server config>server>IP addresses : keep external, change to internal ? Thank you