gentoo-overlay/net-analyzer/snort/files/snort_at.service

[Unit]
Description=Snort IDS system listening on '%I'

[Service]
Type=simple
ExecStartPre=/usr/sbin/ip link set up dev %I
ExecStart=/usr/bin/snort --daq-dir /usr/lib/daq/ -A fast -b -p -u snort -g snort -c /etc/snort/snort.conf -i %I
ExecReload=/bin/kill -HUP $MAINPID

[Install]
Alias=multi-user.target.wants/snort@%i.service