# /etc/systemd/system/sshd.service
[Unit]
Description=OpenSSH server daemon

[Service]
Type=forking
PIDFile=/var/run/sshd.pid
ExecStart=/usr/sbin/sshd
ExecReload=/bin/kill -HUP $MAINPID
KillMode=process
Restart=on-failure
RestartSec=30s

[Install]
WantedBy=multi-user.target