Debian/Ubuntu: Making a Package Repository on Your LAN

This is one of those things that doesn't get explained much, because it's almost too simple to document: it's often useful to keep a few Debian package files (.deb files, used in Debian, Ubuntu, and Linux distributions derived from them) available for installation, either on your local host or on other computers on the same local-area network (LAN). You can make these available as an extra "repository" for your APT system, so that APT-based package tools (apt-get, Aptitude, Synaptic, etc) can access them. This makes managing these special packages just like your other packages, which can solve a lot of problems.

How to find .debs (even if you think they don't exist)

One of the biggest strengths of Debian (and derivatives like Ubuntu) is support for the .deb package. After all, it provides a one-click method of easily installing programs. Best of all, these programs are automatically updated via the official Debian repositories. Unfortunately, the official repositories aren’t always the best. Some programs aren’t always up to date (the latest version of Thunderbird is 2.0. However, the latest version in the repositories is 1.5).

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