Open Source Network Monitoring 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.

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.

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.

Those who have read past the "Malware" warning can be assured there is absolutely no malware in this OS or in the download. This warning comes from the "netcat" binary included in the download as a DOS time client. Unfortunately netcat has code that is flagged as malware. FREESCO, a NAT/firewall router/server based on Linux and runs on a single 1.44MB floppy. Freesco is very powerful and versatile and can connect multiple home or small office networks to most types of Internet connections including dialup.

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.

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

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

A utility for detecting and resisting BIDIRECTIONAL ARP spoofing. It can anti-spoof for not only the local host, but also other hosts in the same subnet. It is as well a handy helper for gateways which don't work well with ARP.

It is a versatile DNS Proxy server with DNS firewall which filters DNS traffic between local computer and DNS servers with flexible rules, supports blocking by IP geography, caching, import/export rules into XML. With a click of a button acts as a DNS proxy (or DNS server), supports multiple client authentication methods, calculates statistics for DNS servers and proxy clients, supports load balancing between multiple upstream DNS servers.

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.

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.

LumoGate is a professional Hotspot Billing Software solution designed to provide secured and regulated Wifi Internet access to your customers. For anyone trying to contact me, directly report a bug or feature request for LumoGate you can contact me on: +233242914426 Whatsapp LumoGate locks down Internet access to anyone that's not authenticated or has not agreed to EULA/accepted use policies. LumoGate interrupts Internet access, lets any unauthorized user login, then Internet access is restored. LumoGate is based on Captive Portal Technology. LumoGate acts as a hotspot firewall and management software that control authentication, bandwidth management, session usage, internet traffic log . LumoGate is the simplest yet complete, intuitive tool to manage your public Wifi HotSpot in Internet Cafes, Schools, Hotels, Restaurants, etc Please donate to support this project. Cheers !!! License: Creative Commons Attribution-NonCommercial-NoDerivatives V4.0

IP Tables State implements the "state top" feature from IP Filter for IP Tables. "State top" displays the states held by your stateful firewall in a "top"-like manner, in real time. IPTState also has an option to print your state table once and NOTE: Development has moved to github: http://github.com/jaymzh/iptstate

WinFail2ban scans log files/event viewer and bans IP that makes too many password failures.

ipset_list is a wrapper script for listing sets of the netfilter ipset program. It allows you to match and display sets, headers, and elements in various ways. The result can be saved as shell script and in ipset save, or xml format.

Geo Firewall performs blocking of network traffic based on geography (geo IP), allows to add custom subnets, allows exceptions on ports for incoming traffic for specific geography, keeps visual and persistent logs, shows statistics, automatically updates geographical database.

This is a Host based Intrusion Detection system, it consists of 4 components viz.Port scan detector,Policy Enforcer,Network Statistics,and Vulnerability detector. The backend programs are written in C, the front end is made using Qt Designer and Glade.

winKnocks is an encrypted(DES) port knocking tool. Knock sequences are defined through XML files; users specify: number of packets of each knock sequence, payload and header of each packet. Logging capability. Generation of smoke packets.No replay-attack

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

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

This is a simple Webinterface to ban or unban IPs with Fail2Ban. Written in PHP. Uses fail2ban-client operations on the local socket. Questions? Contact me: steffen[at]php-works.net

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

PEStudio is a network protocol analysis and security auditing tool for Windows which allows you to apply scripts to winsock calls in order to filter / edit the data that travels to and from your computer, giving you complete control over your network.

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.