Cluster / ssh / public key

[Xentux]

Hello!

Proxmox requires ssh on port 22 to be able to build up a cluster. After connecting it requires the password. All ok...
After the cluster was built, is there any need to keep up ssh on port 22?
For security purposes I always change the port 22 to another port.

Is it possible to create a /root/.ssh/config to enable for example PublickeyAuth? ... or is a special command like "ssh -l root xxxx" called by proxmox?

Thanks in advance...
Andy

 

[dietmar]

Proxmox requires ssh on port 22 to be able to build up a cluster. After connecting it requires the password. All ok...
After the cluster was built, is there any need to keep up ssh on port 22?

Yes, we use ssh tunnels to tunnel vnc connections and do online migrations.

For security purposes I always change the port 22 to another port.

close that on your firewall. If necesary, put the cluster into a separate zone.

Is it possible to create a /root/.ssh/config to enable for example PublickeyAuth? ... or is a special command like "ssh -l root xxxx" called by proxmox?

PublickeyAuth is already enabled and in use.