Ubuntu Plesk SSH issues (permitRootLogin)

Question

I got a new Ubuntu 14.04 server with unlimited Plesk delivered and working. If I try to migrate the old server through Plesk's Migration Manager it reports the following issues:

rsync execution error: Unknown error (255).
Stderr is:
--------------------------------
/etc/ssh/ssh_config: line 55: Bad configuration option: permitrootlogin
/etc/ssh/ssh_config: terminating, 1 bad configuration options
rsync: connection unexpectedly closed (0 bytes received so far) [Receiver]
rsync error: unexplained error (code 255) at io.c(226) [Receiver=3.1.0]

--------------------------------

/etc/ssh/ssh_config (line 55 on destination server):

PermitRootLogin yes

/etc/ssh/sshd_config (also on Destination server):

#PermitRootLogin without-password
PermitRootLogin yes

Both Plesk's are the same (12.0.18), originating server is Ubuntu 12.04LTS Destination server is Ubuntu 14.04LTS.

Answer 1

TL;DR The line PermitRootLogin yes does not belong in the ssh_config file, only in the sshd_config file.

The file ssh_config describes the configuration options for the client. As the error logs say, there is no such option PermitRootLogin for the client. The sshd_config file however, describes the options for the daemon. (You can recognise this because of sshd) The server/daemon does have a PermitRootLogin option, so it belongs there.