The Apache Traffic Server (TS or ATS) is a modular, high-performance reverse proxy server, generally comparable to Squid. It was created by Inktomi, and distributed as a commercial product called the Inktomi Traffic Server, before Inktomi was acquired by Yahoo!. Traffic Server has been actively used inside of Yahoo for over 4 years, serving billions of requests every day. As of fall 2009, Traffic Server is an Open Source project, and in April 2010 the Apache Traffic Server was promoted to a top-level project of the ASF.
Astaro Security Gateway (formerly Astaro Security Linux) is an all-in-one network security gateway that includes a firewall, intrusion protection, antivirus, spam protection, URL filtering, and a VPN gateway. Features include a modern packet filter, intrusion detection and prevention, portscan detection, application control, content filtering, virus detection for email and Web traffic, profile handling, L2TP, IPSec, SSL, and PPTP VPN tunneling, spam blocking, proxies for HTTPS, HTTP, FTP, POP3, SMTP, DNS, VoIP, SOCKS, and Ident, logging, and reporting. It supports Ethernet, VLAN, PPP, PPPoE, PPPoA, Cable Modem, IPv6, QoS, Link Aggregation, and WAN-Uplink-Load balancing in routing, and bridge mode. The WebAdmin GUI, Install Wizard, Change Tracking, Printable Configuration, and Up2Date service make it easy to install, manage, and maintain.
Birch is a simple proxy or tunnel application with a filter mechanism for line based application protocols built on TCP. Initially it was written to add encryption in a transparent way to the IRC protocol but as the encryption mechanism is implemented in a modular way, it is not restricted to just supporting encryption. Filters can be supplied via Java's Service Provider mechanism. A CLI and a GUI are available.
FastFwD is a small daemon that allows users to set up port forwarding from a source IP address and port number to a target IP address and port number easily without the need to deal with complicated ipchains/iptables-rules. FastFwD offers a fault-proof possibility for port forwarding between two networks or IP addresses and additionally gives the possibility to password-protect this connection. FastFwD has been tested for Linux and QNX and should compile and work with all POSIX-based systems.
KnProxy Lambda is a branch of KnProxy that uses Java and PHP to provide users with a safe and balanced proxy service. Communications between the Java client and the PHP based server are encrypted in highly secure encryption methods. Traffic is also distributed among many servers to prevent flow monitoring. KnProxy Lambda allows users to set up a full proxy processing POST, GET, and AJAX Requests on any server offering PHP. It is also compatable with APJP servers, allowing for a wider network and an easier migration.
Mireka is a mail server with SMTP, Mail Submission, and POP3 services. It can also be used as an SMTP proxy. As a proxy, it can help to prevent or diagnose mail problems, like outgoing backscatter spam. It provides detailed logging, basic mail traffic statistics, tarpit to prevent email harvesting, and loop detection. It can filter email by DNSBL, SPF, mail size, local domains, and recipients list. Local recipients can be specified using regular expressions. TLS is supported for incoming connections. Aliases, forward lists, and very simple mailing lists can be configured in XML. Custom filters and other components can be written in Java, and they can be easily implemented and installed.