ssh.service not found

ssh.service: Unit ssh.service not found.

Failed to start ssh.service: Unit ssh.service not found.

failed to restart ssh.service unit ssh.service not found

Failed to restart ssh.service: Unit ssh.service not found

Failed to restart ssh.service: Unit ssh.service not found.

failed to restart sshd.service unit ssh.service not found

failed to restart sshd.service centos unit ssh.service not found

failed to restart sshd.service unit ssh.service not found. ubuntu