[Unit]
Description=blackhole server
#Documentation=
After=network.target

[Service]
ExecStart=/etc/rc.d/init.d/blackhole start 
ExecStop=/etc/rc.d/init.d/blackhole stop
ExecReload=/etc/rc.d/init.d/blackhole reload
Type=forking
PIDFile=/run/blackhole.pid

[Install]
WantedBy=default.target
Alias=blackhole.service