To prevent other mDNS stacks from running, edit '/etc/avahi/avahi-daemon.conf' and ensure the following line appears in the '[server]' section: 'disallow-other-stacks=yes' [no/yes] This helps ensure that only Avahi is responsible for mDNS traffic coming from that port on the system. oval:org.secpod.oval:def:48343 oval:org.secpod.oval:def:48963 SCAP Repo OVAL Definition 2018-11-08