- Plesk 12.5 for Linux
- Plesk Onyx for Linux
Migration fails with error:
[INFO] START: Check connections
[ERROR] Failed to perform action: Check connections
Error while checking connection settings: 'Failed to connect to the source server by SSH: Incompatible ssh server (no acceptable macs)'
Migration was stopped.
A source server is connected through Paramiko implementation of SSH2.
SSH is configured without Paramiko preferred Message Authentication Code (MAC) algorithms on the source server:
# grep "MACs" /etc/ssh/sshd_config
This is Plesk Migrator bug with ID PMT-2360 which is planned to be fixed in future Plesk Migrator updates.
Paramiko prefers the following MACs:
- Connect to the server using SSH.
Add the following MACs to
/etc/ssh/sshd_config, for example:
# vi /etc/ssh/sshd_config
Reload SSH server:
# service sshd reload