I think I understand why it is failing.. I have check on the client side and see this:
ug 1 20:58:31 pdrapp001 sshd[10238]: Invalid user backuppc from 192.170.2.6
Aug 1 20:58:31 pdrapp001 sshd[10239]: input_userauth_request: invalid user backuppc
Aug 1 20:58:31 pdrapp001 sshd[10238]: Failed none for invalid user backuppc from 192.170.2.6 port 41142 ssh2
Aug 1 20:58:31 pdrapp001 sshd[10238]: Failed password for invalid user backuppc from 192.170.2.6 port 41142 ssh2
Aug 1 20:58:31 pdrapp001 sshd[10238]: Failed password for invalid user backuppc from 192.170.2.6 port 41142 ssh2
Aug 1 20:58:31 pdrapp001 sshd[10239]: Connection closed by 192.170.2.6
My backuppc service on the server runs with the backuppc user.
The backuppc user is able to do an ssh with the root account onto the box without any issue (with passkey) but for some reason when a backup starts, the connexion is made with the backuppc user..
So, should I run the backuppc server with the root account? (Dont' think so..) or is there a thing that I have missed somewhere?
Thanks!
Romain