Packet Filtering

SoftPerfect Personal Firewall is a free network firewall designed to protect your PC against attacks from the Internet or via a local area network. SoftPerfect Personal Firewall offers customizable security using user-defined rules for packet filtering. It works at a low level and also allows you... Platforms: Windows

PC Tools Firewall Plus is a powerful personal firewall for Windows that protects your computer from intruders and controls the network traffic in and out of your PC. By monitoring applications that connect to the network Firewall Plus can stop Trojans, backdoors, keyloggers and other malware from... Platforms: Windows

Comodo Internet Security combines the award-winning Comodo Firewall and Antivirus software in one easy-to-install suite. More than 10 million PC users around the world rely on Comodo. Free. Comodo Internet Security 2013 is the free, multi-layered, security application that offers complete... Platforms: Windows, Windows 7

TuxGuardian is an application-based firewall. TuxGuardian was developed after the observation that Linux security applications were not tailored for lay users. With TuxGuardian youll be able to implement access control policies to the network resources in order to identify and control every... Platforms: *nix

flashboot for OpenBSD is a set of makefiles, scripts, and support tools to build an OpenBSD image suitable for booting from read-only media, such as flash memory. The default image (smaller than 5Mb) is an image for a router/firewall with support for IPsec, SSH, IPv6 and IPv4 packet filtering,... Platforms: *nix

Netcount is a package for logging and displaying PPP network traffic on Linux machines. Logging is done via a small shell script which is called during the ip-up, ip-down and system startup processes and from cron, while analysis and printing is done by a program written in Python. The display... Platforms: *nix

Simple Firewall is a easy tool for administration of users and access control. It uses iptables for packet filtering, and saves rules with XML. It can run in shell or over the Web via webmin. Whats New in This Release: - Perform reconfigure squid conf for all linux distros - Fix script init... Platforms: *nix

Simple Firewall is a easy tool for administration users and access control. This tool is made for Linux. Using iptables for packet filtering Write in perl Save rules with xml. That can be run in bash shell and web interface via webmin. Whats New in This Release: - Perform reconfigure squid... Platforms: *nix

Proxsi is a small proxy server that gathers XMLSysInfo output over the network on behalf of HTTP clients. Proxsis general purpose is to provide proxying, and translation to HTTP. It is small, lightweight, requires no configuration to function, and was written with security in mind. Starting... Platforms: *nix

EHNT is a tool which turns streams of Netflow (version 5) data into something useful and human-readable. (Netflow is a UDP-based traffic reporting protocol created by Cisco, generated by Cisco, Juniper, Foundry, and other routers.) Netflow operates in many ways. It will dump flow records in... Platforms: *nix

Firewall is a set of scripts (firewall, fwup and fwdown) that implement an ipchains firewall and various forms of network address and port translation. All you have to do is read the policy file and edit it to reflect your topology and filtering policy. The policy file is composed of sections... Platforms: *nix

Comodo's free Firewall is your first layer of defense against viruses, worms, trojans, hackers and other internet threats. Comodo's Firewall uses Default Deny Protection to prevent threats from occurring, rather than just detecting them when it's already too late. With a single click you can... Platforms: Windows, Windows 7

Complete protection against viruses and Internet attacks for Windows computers. Comodo Internet Security was developed to be a free, multi-layered security application that keeps hackers out and personal information in. -Built from the ground upwards with your security in mind, Internet Security... Platforms: Windows, Windows Vista, XPX64, 7, 7x64

IPFC is a distributed management solution for security module (firewall, nids). Security module can be packet-filtering (ipfw,netfilter,ipf ...), NIDS or any other servers (syslog...) or embedded devices. Platforms: *nix

The fairly fast packet filter (FFPF) is an approach to network packet processing that adds many new features to existing filtering solutions like BPF. fairly fast packet filter is designed for high speed by pushing computationally intensive tasks to the kernel or even network processors and by... Platforms: *nix

DNS Blacklist Packet Filter project is a Linux netfilter client that decides whether to accept or drop packets based on the results of a DNS blacklist query (such as MAPS, SORBS, or SPEWS, to name a few). One use is to filter all incoming SMTP SYN packets for spam filtering.. Platforms: *nix

RADIUS::Packet is an object-oriented Perl interface to RADIUS packets. SYNOPSIS use RADIUS::Packet; use RADIUS::Dictionary; my $d = new RADIUS::Dictionary "/etc/radius/dictionary"; my $p = new RADIUS::Packet $d, $data; $p->dump; if ($p->attr(User-Name eq "lwall") { my $resp = new... Platforms: *nix

Layer-7 Packet Classifier for Linux is a classifier for the Linux kernels Netfilter subsystem that identifies packets based on application layer data (OSI layer 7). This means that it can classify packets as HTTP, FTP, Gnucleus, eDonkey2000, etc, regardless of port. Our classifier complements... Platforms: *nix

Packet Construction Set is a set of Python modules and objects that make building network protocol code easier for the protocol developer. The core of the system is the pcs module itself which provides the necessary functionality to create classes that implement packets. Installation... Platforms: *nix

Stone is an application layer TCP/IP packet repeater. It repeats TCP and UDP packets from the inside of a firewall to the outside or vice versa. It is simple, supports OpenSSL for encrypting and decrypting packets, performing client and server verifications, and sending a substring of the... Platforms: *nix