[Unit] Description=galmon navrecv (receive data on port 29603) After=network.target nss-lookup.target StartLimitIntervalSec=0 # require that the pre-installed configuration file exists ConditionPathExists=/etc/default/navstar [Service] # Customize $DAEMON_OPTS_NAVRECV in /etc/default/navstar EnvironmentFile=-/etc/default/navstar Type=simple Restart=always RestartSec=1 User=ubxtool Group=ubxtool RuntimeDirectory=navrecv ExecStart=/usr/bin/navrecv $DAEMON_OPTS_NAVRECV [Install] WantedBy=multi-user.target