Packages

Mtools
A collection of utilities to access MS-DOS disks from Unix without mounting them. Supports Win'95 style long file names, OS/2 Xdf disks and 2m disks. With source code.
http://mtools.linux.lu/

Squid Internet Object Cache
Full-featured web proxy cache designed to run on Unix systems, free open-source software.
http://squid.nlanr.net/Squid/