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Fireflier is a firewall tool, which is built on top of the iptables framework. You can create rules based on single incoming network packets or simply allow/deny single packets to pass. This project is discontinued. (see homepage)
This script reads your iptables-based firewall configuration and displays your rules in the order in which packes will actually traverse them. Output is intuitive while closely resembling that of iptables-save, and indicates table ownership of rules, etc
DAXFi is a Python package that helps configure several different kinds of firewalls in a consistent way. The rules are described in XML. It comes with a Python package, useful to build other applications and includes some useful example programs.
An easy-to-use Java desktop application to centrally monitor resources from a variety of environments, including the ability to dynamically set up rules to trigger actions based on monitoring. Clients connect via simple and efficient UDP based protocol.
ISIC is a suite of utilities to exercise the stability of an IP and its component stacks (TCP/UDP/ICMP etc.) It generates piles of pseudo random packets with configurable tendancies, then sent to the target to penetrate its firewall rules or find bug
NatStat is a network monitoring tool designed to help network administrators who wants to monitor their iptables settings live.It gathers information from iptables, calculates speeds on the selected (or all available) rules and shows it in a GUI(ncurses/
A daemon to detect spammers trying to harvest email addresses by username guessing and temporarily DROP them with iptables firewall rules. The program also looks for and kills sendmail processes that have been stuck in "cmd read" mode for a long time.
Human Configurator for iptables and tc [traffic control], in order to obtain a traffic-shaping system with a few of click. Basically, it's a perl script which parse an xml config file, where you can put your shaping and filtering rules for your net(s)/h
SPITS - Simple PHP Internet Traffic Shaping
SPITS is a PHP Web Interface for managing tc (traffic control)
queueing disciplines (qdiscs) and classes. Iptables rules are used in order
to classify the packets.
PacketFlow is a command line utility that processes an XML configuration to generate a set of firewall rules. It is intended to be installed and run directly on the firewall itself. PacketFlow was designed to deal with complex configurations.
Gardol monitors system log files to detect denial of service and other attacks and blocks attacking sites with Linux iptables. Attack detection rules may be programmed in Perl.
Auto Proxy Filter Test (APFT) automates the testing of safe and unsafe URLs against a content filtering proxy (such as Dansguardian) and helps prevent regressions. APFT is useful to people who are designing filter rules.
RouteIt can help you setup your firewall by generating iptables rules, it can setup Network Address Translation (NAT) and bridge rules in iptables, it can also help you set traffic limitations and more, from a simple web interface.
High performance, real-time data analysis engine capable of processing from various sources simultaneously (syslog, files, sockets, etc). Triggers internal and user-defined events based on built-in and user-defined rules.
skyPipes Advanced Router is a GNU/Linux/Apache/SSL/PHP/PostgreSQL web app that manages a combination of NAT, Static Alternative Routes, and Dead Gateway Detection rules to balance LAN/DMZ traffic across multiple ISP connections with redundant failover.
The doorman guards the door of a server, manipulating firewall rules to admit only recognized parties.
Allows Silent Running - a server with all ports CLOSED.
Linux-BSD-OSX server & client; C source & docs + Windows client binary. GPL.
A daemon that creates realtime dynamic, expirable iptables rules to block/drop IP addresses attempting brute-force breakin attacks on a linux host via ssh or other mechanism. Highly customizable and extensible.
Simple-to-use, dynamic, rule-based firewall addition. Uses QUEUE/userspace to dynamically approve or drop packets based on custom rules. With frequency caching, friend/foe indication, loose IP matching, and customizable logging.
mipclasses : a program which has as input a series of IP prefixes and create an output compatible with iptables-restore. It concatenates the IP prefixes and creates a tree of MARK rules in order to save CPU.