Details
Avahi is a free zeroconf implementation, including a system for multicast DNS/DNS-SD
service discovery. Avahi allows programs to publish and discover services and hosts
running on a local network with no specific configuration. For example, a user can plug a
computer into a network and Avahi automatically finds printers to print to, files to look at
and people to talk to, as well as network services running on the machine.
*Rationale*
Since servers are not normally used for printing, this service is not needed unless
dependencies require it. If this is the case, disable the service to reduce the potential attack
surface.
Solution
Remove or comment out start lines in /etc/init/avahi-daemon.conf-#start on (filesystem
# and started dbus)
Supportive Information
The following resource is also helpful.
This security hardening control applies to the following category of controls within NIST 800-53: Configuration Management.This control applies to the following type of system Unix.