Distributions_3

Links 

Castle

Server distribution from ALT Linux Team. Improved security is achieved with the use of RSBAC, general privilege separation approaches, and certain pieces and ideas from Owl. A beta is available for testing and use.

Sentry Firewall CD

Linux-based bootable CD suitable for use as low cost, easy to maintain firewall or IDS node.

Trustix

Server distribution; packages chosen based on their security record, safe defaults used. Available for use.

EnGarde

Server distribution, goal: provide level of security needed to create corporate web presence or conduct business on Web. Security achieved via included software and using principle of least privilege; available for use.

Security Enhanced Linux

NSA research prototype made public, has modified kernel, several utilities; has enhanced security-related functions designed to show value of mandatory access controls and how such can be added to Linux; not a full OS distribution.

Owl

Openwall GNU/*/Linux is a server distribution; main means to security: proactive source code review, privilege separation; several other means also used. Available for use. English, French, German, Russian.

HP Secure OS Software for Linux

Server platform using compartmentalization to contain processes to known part of filesystem and network; has system level auditing, supports remote configuration. Mostly closed source. Was commercial product, now discontinued, unsupported.

Astaro Internet Security

Appliance-based special-purpose hardened Linux distribution with firewall, VPN, anti-virus functionality. Some functionality is available for free for home use, the rest is commercial.

Devil-Linux

Small CD-based distribution used for firewalls, routers. System configuration settings are stored on separate floppy disk. Descriptions, news, documents, downloads, links.

Project Plan-B

Bootable linux live CD-ROM for system and network security testing, based on Red Hat Linux

Ubuntu

Easy to use distribution based on Debian

nubuntu

Ubuntu based distribution geared towards system administrators and network specialists

Knoppix

ONe of the first and best live cd's, theres also a dvd version packed full of useful programs

m0n0wall linux

Very minimalistic server and firewall system based on FreeBSD

Mandriva Linux

Very widely used distribution

Suse linux

Linux distribution from Novell.

Red Hat Linux

Enterprise Linux solution

Fedora Linux

A more traditional, open source linux distro from Red Hat