ips-qos is a flexible firewall and traffic shaping tool. It works on Fedora Core, CentOS, Debian, Ubuntu, Slackware, Mandriva, PLD, and SUSE. It was intended to give administrators more control over a shared Internet connection. It includes ips, a flexible and easy-to-use configurable firewall with the ability to control access to the Internet (or selected services) from a LAN. It also includes qos, a traffic shaping tool that measures and controls the traffic load for every computer in a LAN.
InJoy Firewall is a flexible firewall security solution for businesses of any size. It offers preconfigured policy templates, including full customization options, IPSec VPN integration, gateway capabilities, intuitive management, access control, many documented deployment examples, and comprehensive documentation. Dynamic intrusion prevention combines static signatures with behavioral rules technology. The InJoy Firewall is for ethernet use (DSL, cable, etc.) on OS/2 and Linux. It supports both ethernet-based and dial-up connections on Windows. It includes PPPoE connectivity support.
Alt+Connect manages dialup connections, allowing a group of networked machines to share a single Internet connection through their server. Custom client software lets users to start or stop their internet connection, and the server (connectd) ensures that the connection remains up only while someone's using it. Features include support for multiple ISPs and links (modems or ISDN channels), connection control lists, ability to record the time a user spends online and charge him for it, and the ability to enable and disable IP forwarding as a machine starts or stops using the Internet.
Extensible Messaging Platform is a spam-filtering firewall server application. It protects any SMTP mail server from spam, email- orne viruses (including dangerous auto-launch viruses) and other objectionable content. It filters mail using complex contextual signatures (not simple keyword lists). The use of contextual signatures results in high success and extremely low false-positive rates. Additional features include automatic XML extraction/database insertion, optional POP3 retrieval, comprehensive user-definable contextual filtering, content-based message routing and developer API.
DummyIdentd Server Daemon is a Perl program that accepts identd requests (port 113), and responds with a valid response, but giving out no useful information. It is written in Perl, and is suitable for running on company gateways/firewalls to enable your users to access services such as IRC, which require identd.