Arudius Linux
Arudius Linux is a live CD based on Slackware and targets IT security professionals. It features a large collection of software

Security

Secure group communication
This is the first open source implemenation of secure group communication (or multicast). The RFC was published in 1999,

Security
System::Networking

PEID external signature file editor
Win32 Delphi applciation allows convienent editing of external signatures database in windows executable packer finder program

Security
Software Development

snortfocus (snort intrusion focus)
snortfocus is a snort intrusion focus that let`s you better control the attacks to unlimited numbers of systems. It uses

Database::Front-Ends
Security
System::Networking::Monitoring
System::Systems Administration

OpenVAS
OpenVAS is an open source remote security vulnerability scanner, designed to search for networked devices and computers,

Security

php_crack
Provide an implementation of the cracklib (libcrack) libraries as a PHP extension. This allows you to check passwords against

Security

Robbie (Remote Backup)
either locally or remotely

Security
System::Archiving::Backup

RADAR
RADAR is a comprehensive records retention solution for compliance auditing (such as SoX and SEC) and litigation support

Communications
Internet::WWW/HTTP::Site Management
Office/Business
Security

Awesum2
Awesum2 is a graphical checksum verification utility written in Java

Security

DeleteFileLock
DelFileLock is a Win32-only Software and tries to delete or only unlock a file, which is still used and locked by another

Security
Software Development::CASE
System::Filesystems