OpenSIMS provides a way for tying together the open source tools used for security management into a common infrastructure with a real-time RIA for a new kind of analysis and visualization of enterprise network security. Things like Nmap, Snort, Nagios, and Nessus have already been integrated.

(Live CD .iso image)

The IPCop Firewall is a Linux firewall distro. It will be geared towards home and SOHO users. The difference with existing firewalls is that the IPCop interface is very user-friendly and task-based.

Network Security Toolkit (NST) is a bootable ISO image (Live CD) based on Fedora Core 4 providing easy access to best-of-breed Open Source Network Security Applications and should run on most x86 platforms. NST can also be used for crash recovery.

BackTrack is the most Top rated linux live distribution focused on penetration testing. With no installation whatsoever, the analysis platform is started directly from the CD-Rom and is fully accessible within minutes.

Recovery Is Possible (RIP) is a Slackware-based CD or floppy boot/rescue/backup/maintenance system. It has support for a lot of filesystem types (Reiserfs, Reiser4, ext2/3, iso9660, UDF, XFS, JFS, UFS, HPFS, HFS, MINIX, MS DOS, NTFS, and VFAT) and contains a bunch of utilities for system recovery. It also has IDE/SCSI/SATA, PCMCIA, RAID, LVM2, and Ethernet/DSL/cable/PPP/PPPOE network support.

FreeSBIE is a Live CD—an operating system that is able to load directly from a bootable CD without any installation process and without any hard disk. It is based on the FreeBSD operating system. Its name is a pun on frisbee. Currently, FreeSBIE uses Xfce and Fluxbox.

If you have an old laptop for example that don't allow booting from CD you can use those floppy images to start the Debian install!

Linux is a very versatile 50MB mini desktop oriented Linux live distribution.

Clonezilla is a free software disaster recovery, disk cloning and deployment solution.

Live Debian (Etch) distribution, this is the "standard" one without a graphical desktop.

CDriveBack is a backup system. CDriveBack's design goal is to make a backup system so easy to use that the end users with no backup, eighty percent of XP Home users and thirty percent of home XP Professional users, take backups and can easily restore their system.

Frenzy is a portable system administrator toolkit, a live CD based on FreeBSD. It generally contains software for hardware tests, file system check, security check and network setup and analysis.

FreeDOS is a free DOS-compatible operating system for IBM-PC compatible systems. FreeDOS is made of up many different, separate programs that act as "packages" to the overall FreeDOS Project.