Open Source BSD Firewall Software

A java wrapper for popular "libpcap" and "WinPcap" libraries. Accurate full API translation. Packet buffers delivered with no copies. Send custom packets, gather statistics. Comprehensive and easily extensible DPI engine.

SSHGuard protects hosts from brute-force attacks against SSH and other services. It aggregates system logs and blocks repeat offenders using several firewall backends, including iptables, ipfw, and pf.

BASE is the Basic Analysis and Security Engine. It is based on the code from the Analysis Console for Intrusion Databases (ACID) project. This application provides a web front-end to query and analyze the alerts coming from a SNORT IDS system.

The Nemesis Project is designed to be a command line based, portable human IP stack for UNIX-like and Windows systems. The suite is broken down by protocol, and should allow for useful scripting of injected packets from simple shell scripts.

Flexible web-based firewall log analyzer, supporting netfilter and ipfilter, ipfw, ipchains, cisco routers and Windows XP system logs, and mysql or postgresql database logs using the iptables ULOG or NFLOG target of netfilter others mapped to the ulogd format with a view. Fully supports IPv6 for database logs, and netfilter and ipfilter system file logs. Also supports Maxmind's GeoIP version 2 location databases. For Linux, FreeBSD, OpenBSD, Solaris, OSX,etc.

The goal of FireStarter is to provide easy to use, yet powerful, graphical tools for setting up, administrating and monitoring firewalls for Linux machines.

This module provides attack surface reduction enhancements against the HTTP Flood Attacks at the web application level. Massive crawling/scanning tools, HTTP Flood tools can be detected and blocked by this module via htaccess, firewall or iptables, etc. (like mod_evasive) You can use this module by including "iosec.php" to any PHP file which wants to be protected. You can test module here: http://www.iosec.org/test.php (demo) Watch the Proof of Concept video: http://goo.gl/dSiAL Hakin9 IT Security Magazine Article about IOSEC http://goo.gl/aQM4Di (different format -> http://goo.gl/JKMUPN) IJNSA Article at http://goo.gl/LLxRdX WP Plugin Page http://goo.gl/nF5nD CHANGES v.1.8.2 - Iptables Auto Ban Bash Script Included - Token Access via Implicit Deny - Reverse Proxy Support - reCAPTCHA Support Do you want more features? Check for third party addons http://sf.net/projects/iosecaddons Gökhan Muharremoğlu

Knocker is a simple, versatile, and easy-to-use TCP security port scanner written in C, using threads. It is able to analyze hosts and the network services which are running on them. It is available for Linux, FreeBSD, Unix, and Windows95/98/2000.

This project reads logs from your mikrotik firewall and creates an address list with detected attackers

Net-Policy is a highly-scalable, role-and-policy based network management system. Net-Policy aims to be an easy-to-use, full-fledged management station capable of configuration, monitoring, and notification collection and aggregation via the use of SNMP

redWall is a bootable CD-ROM Firewall with Snort, snortsam, dansguardian and support for fwbuilder, spamassassin, reporting (using ACID/sarg/ntop/webfwlog), VPN (FreeSWan/PoPToP/Openvpn) and mail alerting (by mail). Configs are stored on a Floppy or USB

IPTables::IPv4 is a Perl interface for managing the kernel-level Netfilter subsystem using Perl scripts.

Pothos is an iptables log analyzer. It is used to interpret, in a user-friendly fashion, the logs that ulogd creates with it's MySQL plugin. It's main objective is to be efficient, leaving as small a foot-print as possible.

Snort_inline is a modified version of Snort. It accepts packets from iptables, instead of libpcap. It uses new rule types to tell iptables if the packet should be dropped or allowed to pass based on the Snort rules.

Application to display, as well as interpret, firewall information from a database to serve a variety of users needs. The application is online and cross-platform, written using PHP.

Reduce employee personal Internet usage during the working day. Increase respect of your corporate Internet usage policy, provide open and honest feedback such as WebMail use during work hours. Plugs into an existing proxy or firewall such as Squid.

BASE+ (Basic Analysis and Security Engine) is based on ACID project. This application provides a web front-end to query and analyze the alerts coming from various IDS systems (e.g. Snort).

BBStatus is an IP accounting and an SNMP and IP monitoring tool for Linux. It collects, summarizes, and displays the values from its database.

Bait and Switch combines IDS tech (Snort primarily) and Honeypots into a new, more valuable, reactive system. After receiving an alert, B&S protects your server by silently redirecting hostile traffic to a honeypot while leaving other traffic alone.

Bandwidth Management Tools is a total bandwidth management solution for Linux and can be used for firewalling, traffic graphing, and shaping. It is not based on any currently-available bandwidth management software some ver advanced features.

Bruteblock allows system administrators to block various bruteforce attacks on UNIX services. The program analyzes system logs and adds attacker's IP into IPFW table effectively blocking them. Addresses are removed from the table after expiration period

These three tools build Checkpoint, Cisco ASA or Netscreen policys from logfiles. They write dbedit, access-list or set address, set service and set policy commands for the traffic seen in the logs, that can be cut and pasted into the firewalls. WOOT

CD-ROM Firewall is a Red Hat/Centos (yum based install) based firewall that boots off a CD-ROM. Utilizing a headless, diskless computer it can provide services such as network address translation (NAT), virtual private network (VPN), ADSL connnectivity,

Firewall and Security solutions for your Cobalt Servers. Tired of being port scanned? Sick of foreign hackers installing root kits? Come check it out.

DFA library is a regular expression library capable of the classic RE syntax (i.e. - without any perl extension). Unlike many other libraries with similar functionality, a deterministic finite automata (DFA) is used. DFA was formerly called npcre, wh