[Unit]
Description=OpenSSH Server Daemon.
Wants=ssh-keygen.service
After=syslog.target network.target ssh-keygen.service

[Service]
PIDFile=/var/run/sshd.pid
# test ssh setup
ExecStartPre=/usr/sbin/sshd -t
ExecStart=/usr/sbin/sshd -D
ExecReload=/bin/kill -HUP $MAINPID
KillMode=process
Restart=always

[Install]
WantedBy=multi-user.target