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Knmap is a KDE-based interface to the 'nmap' facility available at http://www.insecure.org/nmap. The main Knmap window provides for the entry of nmap options and the display of nmap-generated output.
Netfilter tracker is a tracking tool for iptables logs, similar to Checkpoint(tm) Smartview Tracker. Includes storage in an embedded SQL database and a graphical application (viewer) to access filtered data.
Allows users of a Linux workstation to control which programs access the Internet. This can be done statically by listing them in a file or dynamically via a GUI dialog box that appears when a new program attempts to connect to the Internet.
TSGF - The Squid Guard Frontend is a php script to manage the blacklists in the squidguard. TSGF - The Squid Guard Frontend é um script php para gerenciar as blacklists no squidguard.
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HTTP Tunnel that works with ANY HTTP proxy: no CONNECT method required! You can use the port redirector or Socks 4/4a/5 to connect outside your (restricted) LAN. An external web server is required, to be used as gateway.
Linsec is a shell script firstly designed for slackware linux 10 and now supports most of linux distros. Linsec improves security of Linux systems (kernel parameters, network behaviour, iptables, critical files permissions)
Crowd Control is an small, cross-platform HTTP proxy (a fork of the elhttp project) designed for systems with little RAM, such as a home router. It can filter URLs using SquidGuard blocklists, and has the unique ability to filter HTTPS domains as well.
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.
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LogCop is a set of turn-key bash/firewall/awk scripts for enhancing an IDS. It monitors system logs and blocks IP addresses based on such criteria as illegal user names from repeated attacks. In production under Linux, FreeBSD, OS X, Solaris.
Proxmox Firewall (Proxwall) is a flexible Linux firewall based on Shorewall and many other open source tools. It is designed to install on commodity hardware within minutes. It can handle complex and fast changing network environments.
nf-HiPAC is a high performance packet filter for Linux. It provides the same rich feature set as iptables but uses an advanced algorithm to minimize the number of memory lookups per packet.
etherdam is an IPTables firewall configuration engine; it implements a primitive (and hopefully simple) scripting language as an alternative to direct use of iptables.
The Knock Project is a collection of security tools providing increased client/server authentication. The server and its functionality is provided by the netfilter kernel interface. Included are the daemon, a GNU/Linux client and a Windows client.
The goal of WallFire is to build a very general and modular firewalling application based on netfilter or any kind of low-level framework. It will provide a multi-language API, command line and interactive tools as well as X11 or HTML front-ends.
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.
Started as part of the Google Summer of Code 2005, this tool adjusts security settings on Linux systems, including firewall and SELinux policies. This tool aims to replace the system-config-securitylevel tool from Red Hat and Fedora Core systems.
BastionX is a suite of bash scripts which provide a firewall system using netfilter on linux.
Some of the supported features are flow control & QoS, local & WAN ip blacklists, dynamic trusted hosts, DMZ feature, auto detection of interfaces.
TunnelTools is a set of perl scripts to allow anonymous rsync and CVS access from machines inside a firewall by tunneling over an ssh connection to a host outside the firewall.