2.2.3 Ensure Avahi Server is not installed - avahi

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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.


Automatic discovery of network services is not normally required for system functionality. It is recommended to remove this package to reduce the potential attack surface.


Run the following commands to stop, mask and remove avahi-autoipd and avahi:

# systemctl stop avahi-daemon.socket avahi-daemon.service

# dnf remove avahi-autoipd avahi

See Also