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Snort® is an open source network intrusion prevention and detection system using a flexible rule-driven language, which combines the benefits of signature, protocol and anomaly based inspection methods. With millions of downloads to date, Snort is the most widely deployed intrusion detection and ... [More]
PF (Packet Filter) is OpenBSD's system for filtering TCP/IP traffic, doing Network Address Translation, normalizing and conditioning TCP/IP traffic and providing bandwidth control and packet prioritization. PF has also been ported to FreeBSD, NetBSD, and DragonFly BSD, and is an integral part of MirBSD.
This is a piece of software that lets you tunnel IPv4 data through a DNS server. This can be usable in different situations where internet access is firewalled, but DNS queries are allowed. It runs on Linux, Mac OS X, FreeBSD, NetBSD and OpenBSD and needs a TUN/TAP device. The bandwidth is ... [More]
Led by the team who designed and built ModSecurity, the new project aims to produce a web application firewall sensor that is secure, high-performing, portable, and freely available – even for commercial use. Hosted at the web site www.ironbee.com, the project is open to all parties interested in joining the development effort.
DenySSH monitors the auth log of a BSD system for failed SSH login attempts and adds repeat attackers to a Packet Filter table, allowing you to define PF rules to block the attacking hosts or redirect them to a honeypot for your amusement.
PeerGuardian for IPFWpg-ipfw is a software package meant to bring the power of PeerGuardian to users of FreeBSD's IPFW. The included daemon, pgd(8), is compatible with most of the common block-list formats currently in use: PeerGuardian P2P PeerGuardian P2B (Versions 1-3) eMule ipfilter.dat ... [More]