GuardDog is a firewall configuration utility for KDE on Linux. GuardDog is aimed at two groups of users - novice to intermediate users who are not experts in TCP/IP networking and security, and those users who don't want the hastle of dealing with cryptic shell scripts and ipchains parameters. Features an easy to use goal oriented GUI and the ability to generate ipchains scripts as output.
1109796a45faa0c4043878f74d606e4bc1cca6b4a3a0af727d10df10aeb513ef
Libnids is a library that provides a functionality of one of NIDS (Network Intrusion Detection System) components, namely E-component. It means that libnids code watches all local network traffic, cooks received datagrams a bit (quite a bit ;)), and provides convinient information on them to analyzing modules of NIDS. So, if you intend to develop a custom NIDS, you don't have to build low-level network code. If you decide to use libnids, you have got E-component ready - you can focus on implementing other parts of NIDS.
8bce851ef10447e005e43e980935808d2de410a94b8e95667bb174cddd7b0c79
SAINT (Security Administrator's Integrated Network Tool) is a security assesment tool based on SATAN. It is updated regularly and scans for just about all remotely detectable vulnerabilities. Features include scanning through a firewall, updated security checks from CERT & CIAC bulletins, 4 levels of severity (red, yellow, brown, & green) and a feature rich HTML interface.
51267073eb555898875966cf384b1f212855a31e4c44bfc0455696cf3a09d27a