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TuxFrw is a set of scripts created to ease the way Linux IPTables rules are configured. Using TuxFrw an user can configure his own Linux / Netfilter based network firewall, simply passing some IP address numbers and other services utilization policie
HLBR is an IPS (Intrusion Prevention System) that can filter packets in the OSI layer 2. Detection of malicious traffic is done by rules. It can even be used as bridge to honeypots. The HLBR is a firewall element and can use regular expressions.
Warning: this project was discontinued and should not be used in production networks. There are several bugs.
A package of scripts to watch for snort alerts, change / create firewall rules to block high priority alerts, and record recent blocks. It will increase block times based on previously recorded blocks
homeLANsecurity is a series of shell scripts for loading iptables firewall rules. It is primarily designed to operate on home or small office gateway Linux systems. It provides an easy to manage framework for standard iptables rule sets.
inundator is a tool used to anonymously inundate intrusion detection logs with false positives to obfuscate a real attack, leaving the IDS analyst feeling completely inundated.
pam_iptrecent is a PAM module that interfaces with the Netfilter/IPtables Recent module IP lists. This allows PAM authenticated sessions to add (and remove) IP addresses to firewall rules on linux servers.
iptables-TNG ( The Next Generation of iptables) An environment that can use different packet classification algorithm (eg. tuple) to support large rulesets (more than 10,000 rules) for high bandwidth networks.
jIPFire is an easy-to-use basic Linux iptables generator written on Java. It has some ready, very basic and general, rules that can be applied, or just displayed, and it gives you also the ability to create your own custom iptables rules.
...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.
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.
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
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.
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.