Setting up a local update server for Ubuntu desktops can help in managing multiple machines efficiently by caching packages and distributing them locally.
The process involves installing apt-cacher-ng on a dedicated server, configuring it, allowing access through the firewall, and setting up Ubuntu clients to use the cache.
Regularly monitor disk space, use cron or logrotate for log management, and the setup works seamlessly for Ubuntu, Debian, and their derivatives.
Overall, setting up a local update server reduces internet usage, speeds up updates, and enhances reliability during high-traffic times for environments with multiple machines.