Resolved Migration error from Debian to Ubuntu

[alelar]

Server operating system version

Ubuntu 20

Plesk version and microupdate number

18.0.43

I have this error when i try to migrate my site from an old Debian 10 to a new VPS with Ubuntu 20.

Failed to fetch basic information about resellers, clients and domains data from source servers
Cause: Command execution failed on the local server with non-zero exit code.
command: rsync -r --chmod=Fu=r,Du=rwx,go= --timeout=30 -e 'ssh -i /usr/local/psa/var/modules/panel-migrator/sessions/20220427162620/ssh-keys/id_rsa.XXX.XXX.XXX.XXX -p 22 -o PasswordAuthentication=no -o StrictHostKeyChecking=no -o GSSAPIAuthentication=no' /usr/local/psa/admin/plib/modules/panel-migrator/backend/lib/python/parallels/plesk/source/legacy/extras/plesk_17_0_pmm_shared/ root@XXX.XXX.XXX.XXX:/tmp/plesk_migrator-nrtetuj6lu92s30sixk33v70a11u4v3u/pmm_agent
exit code: 255
stdout:
stderr: root@XXX.XXX.XXX.XXX: Permission denied (publickey,password).
rsync: connection unexpectedly closed (0 bytes received so far) [sender]
rsync error: unexplained error (code 255) at io.c(235) [sender=3.1.3]

That is a critical error, migration was stopped.

Thanks for helping me.

 

[Monty]

Your new server is unable to log in via SSH to the source server.
Check the contents of /var/log/auth.log on the source server to see why the SSH connection failed, there could be multiple reasons: Wrong password or SSH key supplied, root login disabled etc.

You can easily test it by doing ssh root@xxx.xxx.xxx.xxx on your new server (where xxx.xxx.xxx.xxx = IP of the old server).

 

[alelar]

From the new server i can connect to the old server via SSH.

 

[Monty]

Aaaand what's in /var/log/auth.log?

 

[alelar]

nothing in /var/log/auth.log
Apr 27 18:10:01 vmi837026 CRON[1720291]: pam_unix(cron:session): session opened for user root by (uid=0)
Apr 27 18:10:01 vmi837026 CRON[1720289]: pam_unix(cron:session): session opened for user root by (uid=0)
Apr 27 18:10:01 vmi837026 CRON[1720290]: pam_unix(cron:session): session opened for user root by (uid=0)
Apr 27 18:10:01 vmi837026 CRON[1720292]: pam_unix(cron:session): session opened for user root by (uid=0)
Apr 27 18:10:01 vmi837026 CRON[1720292]: pam_unix(cron:session): session closed for user root
Apr 27 18:10:01 vmi837026 CRON[1720290]: pam_unix(cron:session): session closed for user root
Apr 27 18:10:01 vmi837026 CRON[1720289]: pam_unix(cron:session): session closed for user root
Apr 27 18:10:01 vmi837026 CRON[1720291]: pam_unix(cron:session): session closed for user root

 

[alelar]

On old server i have
Apr 27 18:14:50 naughty-hamilton sshd[21964]: Authentication refused: bad ownership or modes for directory /root
Apr 27 18:14:50 naughty-hamilton sshd[21964]: Authentication refused: bad ownership or modes for directory /root
Apr 27 18:14:54 naughty-hamilton sshd[21964]: Accepted password for root from 38.XXX port 37520 ssh2
Apr 27 18:14:54 naughty-hamilton sshd[21964]: pam_unix(sshd:session): session opened for user root by (uid=0)
Apr 27 18:14:54 naughty-hamilton systemd-logind[444]: New session 283 of user root.
Apr 27 18:14:54 naughty-hamilton systemd: pam_unix(systemd-user:session): session opened for user root by (uid=0)
Apr 27 18:15:24 naughty-hamilton sshd[21992]: Accepted password for root from 38.XXX port 37630 ssh2
Apr 27 18:15:24 naughty-hamilton sshd[21992]: pam_unix(sshd:session): session opened for user root by (uid=0)
Apr 27 18:15:24 naughty-hamilton systemd-logind[444]: New session 285 of user root.
Apr 27 18:15:24 naughty-hamilton sshd[21992]: pam_unix(sshd:session): session closed for user root
Apr 27 18:15:24 naughty-hamilton systemd-logind[444]: Session 285 logged out. Waiting for processes to exit.
Apr 27 18:15:24 naughty-hamilton systemd-logind[444]: Removed session 285.
Apr 27 18:15:24 naughty-hamilton sshd[21999]: Accepted password for root from 38.XXX port 37636 ssh2
Apr 27 18:15:24 naughty-hamilton sshd[21999]: pam_unix(sshd:session): session opened for user root by (uid=0)
Apr 27 18:15:24 naughty-hamilton systemd-logind[444]: New session 286 of user root.
Apr 27 18:15:27 naughty-hamilton sshd[22029]: Authentication refused: bad ownership or modes for directory /root
Apr 27 18:15:27 naughty-hamilton sshd[22029]: Authentication refused: bad ownership or modes for directory /root
Apr 27 18:15:27 naughty-hamilton sshd[22029]: Connection closed by authenticating user root 38.XXX port 37646 [preauth]
Apr 27 18:15:28 naughty-hamilton sshd[21999]: pam_unix(sshd:session): session closed for user root
Apr 27 18:15:28 naughty-hamilton systemd-logind[444]: Session 286 logged out. Waiting for processes to exit.
Apr 27 18:15:28 naughty-hamilton systemd-logind[444]: Removed session 286.

 

[alelar]

i have resolved connection with this thread: https://support.plesk.com/hc/en-us/...on-denied-publickey-gssapi-with-mic-password-

thank you very much @Monty for your time and help.