Security

• rc.firewall
  rc.firewall is an ipchains-based firewall script with extensive supportfor network services (IPSec, VTUN, NFS, SMB, Napster, Proxies, etc.),masquerading, port forwarding (including definitions for ne...
  
• narc
  NARC is a free firewalling package for Netfilter/Iptables. It attempts to simplify the setup of a firewall (stateful packet filter) via the iptables tools. NARC is a bash shellscript that generates s...
  
• ipfreeze
  Ipfreeze is a program that listens to the netlink device. It takes the source address from every incoming packet and adds it to a Netfilter "blacklist" chain. The address is removed from this chain a...
  
• myfw
  myfw is a firewall based on iptables snipets (modules). It helps you to build your iptables firewall. ...
  
• Linux IP Firewalling Chains
  Linux IP Firewalling Chains is an update to the 2.0 Linux Firewalling code, for the 2.2 Linux kernel. ...
  
• redir
  redir is a port redirector, used to forward incoming connections to somewhere else. ...
  
• Firewall Tester
  The Firewall Tester is a tool designed for testing firewalls' filtering policies. ...
  
• PHP firewall generator
  The PHP firewall generator is a simple PHP script that generates a firewall script for ipchains- or iptables-based firewalls. ...
  
• EtherDam
  EtherDam is a firewall configuration engine that relies on iptables. ...
  
• rTables Linux 2.4.x Firewall
  rTables is a detailed, customizable iptables firewall for Linux 2.4.x, easily implemented on boxes with one to three network interfaces. ...
  
• Linux Firewall
  Linux Firewall is a robust, well-designed firewall for Linux 2.4 based on netfilter/iptables. ...
  
• quicktables
  quicktables is an iptables firewall and firewall / nat (gateway) script generator. ...
  
• iptables-control
  iptables-control is a fast and easy iptables filter configurator. ...
  
• BlockIt
  BlockIt monitors the Snort alert file and creates either IPTables, IPChains, IPFWADM, or Checkpoint Firewall rules. This version is only for Linux (later versions will include FreeBSD and OpenBSD sup...
  
• PMFirewall
  PMFirewall is an Ipchains Firewall and Masquerading Configuration Utility for Linux. ...
  
• MonMotha's IPTABLES Firewall
  MonMotha's IPTables firewall is a shell script that implements masquerading and basic security using iptables. ...
  
• Netfilter2htm
  Netfilter2html is a script developed in AWK for filtering netfilter/iptables logs to generate HTML reports. ...
  
• Lutel Firewall
  Lutel Firewall is a Linux IPtables shell script written in bash for use as a stateful firewall and NAT/masquerade router for single or multiple subnets networks. ...
  
• gnome-lokkit
  gnome-lokkit is a user friendly firewall configuration tool for Red Hat Linux. ...
  
• Packetflow Firewall Generator
  PacketFlow Firewall Generator is an XML-based firewall generator. It takes an XML configuration file that defines the firewall policy and generates a list of iptables commands to implement this polic...
  
• Linux Firewall Automation Project
  The Linux Firewall Automation Project is a firewall script automator. By using the answers to a series of questions presented to the user, it generates appropriate firewall scripts and Samba configur...
  
• Bifrost
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• isinglass-hzd
  isinglass-hzd is a firewall setup script designed to protect dial-up users. ...
  
• ipfwadm2ipchains
  ipfwadm2ipchains is a script designed to convert ipfwadm rulesets into ipchains rulesets. ...
  
• ipt_ACCOUNT
  ipt_ACCOUNT is a high performance local network accounting system written for the Linux netfilter/iptables system. ...