As per question. There is no single working tutorial for 5.3.6 (either some features removed / changed / things changed) for Kimsufi. I.e. 1 public IP needs to expose ports to 5 container's ssh. Have vmbr0 with public IP (as any other kimsufi server) vmbr1 with 10.0.0.1 container 10.0.0.2 Can ping and login via ssh from host Can access internet from container ***** I've checked number of posts on this forum, seems like this issue was never solved which is weird as port forwarding is an industry standard to exposing different services. I will just go back to clean Ubuntu as there is no issue with using even thousand domains on one ip, and I really don't know why Proxmox is not viable option. Too bad as we would take the commercial support as we have over 10 servers and keep growing. However if something so simple is broken then I cannot imagine growing it to the cluster of 50-200 servers. Very disappointing.