Open Source C File Compression Software for Linux

A set of Unixish tools allowing encrypted and compressed backups be done on exchangible media.

Rsync friendly encryption that runs on the UNIX command line. Encrypt a file and backup the changes to an untrusted host.

A resource-conscientious, flexible, modular, platform-independent, scalable and robust server based on ircd-ratbox.

Lrzip is a lossless compression application designed to scale with modern hardware resources using a variety of different back end compression algorithms with the ability to have unlimited size compression windows and optional high grade encryption. The larger the file the better the compression possible and the more powerful the hardware the faster it can compress with a heavily multithreaded design.