Altimate Firewall is a small and easy-to-use firewall, based on a hardened Gentoo system. It has an intuitive and easy-to-use Web interface. The Altimate Firewall uses Shorewall (LAN, WAN, DMZ), OpenVPN, PPTPD, IPSEC, and many more. It includes Avira WebGate and MailGate for safer browsing and for securing your email messages. The network settings can be easily managed by a non-professional.
CKS is an openPGP (RFC2440) compliant public key server. It is currently under development. It is written in C, and runs on Linux. It uses PostgreSQL for key storage, and supports the hkp protocol (it can interface with GnuPG and NAI PGP). The keyserver is mostly functional, and there is a link to a running copy on the homepage.
Endian Firewall is an all-in-on Linux security distribution that turns any system into a full-featured security appliance. It features a stateful packet inspection firewall, application-level proxies for various protocols (HTTP, POP3, SMTP), anti-virus support, virus and spam filtering for email traffic (POP and SMTP), content filtering of Web traffic, and a "hassle free" VPN system based on OpenVPN.
EverCrack is a cryptanalysis engine. The overall design goal is to systematically break down complex ciphers into their simplex components for cryptanalysis (by the kernel). The kernel consists of an algebraic design (comparison and reduction) for breaking uniliteral, monoalphabetic ciphers instantaneously. Currently, it can break a 4000-word cipher in milliseconds. EverCrack currently has multi-language support for the user interface and cracking encryption in other language dictionaries (English, German, French, Spanish, Italian, Swedish, Dutch, and Portuguese).
Figaro's Password Manager 2 (FPM2) is a GTK2 port of Figaro's Password Manager, originally developed by John Conneely. It allows you to securely store your passwords, which are encrypted with the AES-256 algorithm. It allows you to copy passwords or usernames to the clipboard or primary selection. If a password is for a Web site, FPM can keep track of the URLs of your login screens and can automatically launch your browser. You can also teach FPM to launch other applications. FPM can sort your passwords into categories. Finally, it has a password generator that can help you choose good passwords.
INSERT (the Inside Security Rescue Toolkit) aims to be a multi-functional, multi-purpose disaster recovery and network analysis system. It boots from a credit card-sized CD-ROM and is basically a stripped-down version of Knoppix. It features good hardware detection, fluxbox, emelfm, links-hacked, ssh, tcpdump, nmap, chntpwd, and much more. It provides full read-write support for NTFS partitions (using ntfs-3g), and the ClamAV virus scanner (including a fairly recent signature database and a GUI). It provides partition handling with gParted and also has a network boot facility.