Linux puskom-ProLiant-DL385-Gen10 5.4.0-150-generic #167~18.04.1-Ubuntu SMP Wed May 24 00:51:42 UTC 2023 x86_64

//etc/network/if-post-down.d/avahi-daemon

 #!/bin/sh

# Don't run the avahi-daemon unicast local check while bringing up
# the loopback device; it's not necessary until we bring up a real network
# device
[ "$IFACE" != "lo" ] || exit 0
case "$ADDRFAM" in
	inet|inet6) ;;
	*) exit 0 ;;
esac

# If we have an unicast .local domain, we immediately disable avahi to avoid
# conflicts with the multicast IP4LL .local domain
if [ -x /usr/lib/avahi/avahi-daemon-check-dns.sh ] ; then
	exec /usr/lib/avahi/avahi-daemon-check-dns.sh
fi