- Unable to start a migration:
PLESK_ERROR: 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/20180112094642/ssh-keys/id_rsa.203.0.113.2 -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/plesk/extras/pmm_17_0/ firstname.lastname@example.org:/var/tmp/migratetmp/plesk_migrator-jmgs1tjlwvappuenaln0qeeqsr8uypq5/pmm_agent
exit code: 255
stderr: ssh_exchange_identification: Connection closed by remote host
rsync: connection unexpectedly closed (0 bytes received so far) [sender]
rsync error: unexplained error (code 255) at io.c(605) [sender=3.0.9]
- Sometimes it is possbile to start a migration, however if source data is reloaded in Plesk > Tools & Settings > Transfer and Migration Manager > the neccessary session > Reload Source Data the error is shown again.
/var/log/securethere are a lot of similar entries:
CONFIG_TEXT: sshd: Failed password for root from 203.0.113.3 port 15729 ssh2
sshd: Failed password for root from 203.0.113.3 port 53422 ssh2
sshd: Failed password for root from 203.0.113.3 port 43453 ssh2
sshd: Failed password for root from 203.0.113.3 port 53729 ssh2
sshd: Received disconnect from 203.0.113.3 port 22942:11: [preauth]
sshd: Disconnected from 203.0.113.3 port 22942 [preauth]
Brute force attack on the server.
Enable Fail2Ban to automatically ban IP addresses from which the attack is performed.