[Unit]
Description=A network interface promiscuous mode detection tool
After=network.target
Documentation=man:ifchk(1) man:ifchk.conf(5)

[Service]
Type=forking
ExecStart=/usr/sbin/ifchk -f /etc/ifchk.conf
PIDFile=/var/run/ifchk.pid
ExecStop=/usr/bin/pkill -TERM ifchk

[Install]
WantedBy=multi-user.target