A linux distribution distinguished by being particularly "bare-bones" Also well known for good security right out of the box.

Better than red hat but harder initaly to learn.

The best, fastest, simplest, oldest, most secure, and most UNIX-like distribution of Linux.

An open-source, free Linux distribution started in 1993 by Patrick Volkerding. Noted to be Unix-like, and includes desktop environments, server software, and terminal software from the CDs.
Comes as a four-CD set, though just one can be used to have a terminal-style installation. Disc two contains the desktop environment and a bootable rescue disk.