[Unit] Description=OpenBSD Secure Shell server socket Before=sockets.target ssh.service ConditionPathExists=!/etc/ssh/sshd_not_to_be_run [Socket] ListenStream=0.0.0.0:22 ListenStream=[::]:22 BindIPv6Only=ipv6-only Accept=no FreeBind=yes [Install] WantedBy=sockets.target RequiredBy=ssh.service