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connect proxy tunnel cpt aims to be running in front of any HTTPS server. It forwards all requests that don't call for a "CONNECT .." to the normal HTTPS server. There is no error handling for mistaken requests; they go straight to the default server. A request that doesn't pass the conditions is passed forward too, and the Web server will handle it (with the default error page). Users should be unaware that cpt is running as a proxy. connect-tunnel connect-tunnel is a simple Perl script that lets you tunnel anything through a CONNECT-aware HTTP proxy. It supports multiple tunnels and multiple connections to those tunnels, and all of the authentication methods that libwww-perl supports (Basic, Digest, and NTLM). ctunnel ctunnel is a program for proxying and forwarding TCP connections via a cryptographic tunnel. ctunnel can be used to secure any existing TCP based protocol, such as HTTP, Telnet, FTP, RSH, MySQL, etc. You can even tunnel SSH. You can also chain or bounce connections to any number of intermediary hosts. desproxy desproxy is a TCP tunnel for HTTP proxies. EtherDivert EtherDivert is an ethernet frame diverter for transparent www proxying bridge and more. Etherpuppet Etherpuppet is a small program for Linux that will create a virtual interface (TUN/TAP) on one machine from the ethernet interface of another machine through a TCP connection. Frame Diverter Frame Diverter is mainly used for setting up a bridge with Squid running on it and transparently caching Web traffic between the LAN and the router. It's beeing extended to allow forwarding frames to other machines. It also allows layer 3+ switching. Gadu-Gadu relaying agent Gadu-Gadu relaying agent is a simple GG relaying agent. This means, that if you are a network administrator and applying masquerade on your server, it's likely, that your customers would like to establish direct connections over the masquerade using GG. GNU Proxyknife GNU Proxyknife (formerly known as phc or proxy hunter customed) is a program to validate free proxies for LAN users to reach the Internet by bypassing ISP proxies with strict limits. It can be customized to change headers (such as User_Agent) in test requests sent to free proxies. You can also customize it with your own checksite, checksite port, or checksite key, switch between the CONNECT and GET method, etc., to test and filter free proxies. It can be used to validate free socks5 proxies with a connect command, socks4 proxies with a connect command or free HTTP proxies with a GET or CONNECT method. It can validate free proxies with a TCP tunnel. HAproxy A high-performance and highly-robust TCP/HTTP load balancer which provides cookie-based persistence, automatic failover, header insertion, deletion, modification on the fly, advanced logging contents to help trouble-shooting buggy applications and/or networks, and a few other features. HTun HTun is a tool to allow you to create a fully bidirectional IP VPN over an HTTP proxy or just over port 80, allowing you to bypass restrictive firewalls and use any service you desire. ip_relay ip_relay can shape the TCP traffic forwarded through it to a specified bandwidth and allow this specified bandwidth to be changed on-the-fly. Multiple data streams to different hosts/ports may be shaped to the same total bandwidth, much like a traffic shaping router would, however this application runs in user space, and works by acting as a TCP proxy. magent magent is a simple but useful proxy program for memcached servers. It supports most of the memcached protocol, keeping connections alive, and backing up server farms. Mizio Mizio is a proxy hunter tool for Linux that will also test the anonimity and speed. It uses the QT and KDE library. The program will also retrieve the geographical locations of the proxies server. NetSplitter NetSplitter is a (user-level) network load-balance. It acts like a transparent-proxy and will balance ( output ) TCP connections on multiples links. OpenFWTK OpenFWTK is an application proxy toolkit which inherits the ideology of TIS fwtk and maintains API backwards compatibility. The design goal is to make it simple yet powerful; no performance hacks are allowed in the code and library dependencies are reduced to a minimum. It is a true application layer filter. It features unified pluggable content inspection for the most frequently used protocols, NAC (Network Admission Control), and the ability to define fine-grained Internet access policy based on browser identification. pactester Pactester is a tool to test Proxy Auto Configuration (PAC) files. PAC files are used by browsers to determine the 'right' proxy for a URL. pptpproxy pptpproxy forwards a PPTP VPN connection through a Linux firewall. Proxy-applet Proxy-applet is an applet that allows you to change your GNOME Proxy configuration with a single click. Proxytunnel Proxytunnel connects stdin and stdout to a server somewhere on the network, through a standard HTTPS proxy. prtunnel prtunnel forwards (or "tunnels") a TCP connection from a local client program to a remote server through an HTTP or SOCKS5 proxy. Useful for programs that don't have native proxy support. reverse pimpage reverse pimpage allows you to access a box that is behind a proxy from outside the proxy without having administrative access to the proxy server itself. ser2net Serial port to network proxy provides a proxy that allows telnet/tcp connections to be made to serial ports on a machine. sercd sercd is a RFC 2217 compliant serial port redirector. It is based on sredird. Other similiar projects are ser2net and msredird. socat socat is a relay for bidirectional data transfer between two independent data channels. Solido Smtp Proxy Solido Smtp Proxy is an in-memory SMTP proxy which offers high performance load balancing and securing of backend mail servers. squid_redirect squid_redirect is a redirector for squid that intercepts advertising (banners, popup windows, flash animations, etc), page counters and some web bugs. SquidClamAv SquidClamAv is a dedicated ClamAV antivirus redirector for Squid. It can run antivirus checks based on filename regex, content-type regex, and more. It is easy to install and works even with heavy Squid access. sredird sredird is a serial port redirector that is compliant with the RFC 2217 "Telnet Com Port Control Option" protocol. sslredir sslredir is a simple utility used for redirecting incoming non-SSL connections to outgoing SSL connections. This is useful for enabling applications such as mail, news, or IRC clients, which do not support SSL, to connect to SSL servers. It also supports connecting to the remote host through a SOCKS4A proxy, so sslredir is ideal for use with Tor. ssltunnel.pl ssltunnel.pl is a firewall tunnelling script for accessing external network resources through a normal web proxy. stunnel stunnel is designed to work as SSL encryption wrapper between remote client and local (inetd-startable) or remote server. Read more tangle tangle is a system for what we call "web page entanglement". tangle creates links between pages automatically based on how users move from one page to another. By viewing the web through a tangle proxy, you can see the connections and associations left by those who surfed the web before you. TCP/Anywhere TCP/Anywhere is capable of running multiple daemons on different ports to tunnel common TCP applications, such as email and telnet, through a proxy server. This allows access to otherwise inaccessible Internet applications. TCPDuP TCPDuP is a networking utility that can duplicate (proxy) a remote host:port. It is similar to netcat in that it is a command-line networking utility that is designed to make network communications transparent. TCPfork (commercial) TCPfork is an userland TCP Proxy with advanced load balancing capabilities. Core features are the ability to load balance on a "least connection" base and the ability to take the machine load into account ("least load" or "least resource" load balancing). This is implemented by talking the "bngagent UDP protocol" to agents on the destination hosts ("bngagent" is an open source part of the BNG (BalanceNG) project). TCPfork performs "TCP open" health checks per default and allows calling external health check scripts instead ("mon" monitor script command line compatible). tcpxd tcpxd is a general purpose TCP/IP relay program designed to be simple to get going, requiring only three parameters; the port to listen on, the host to forward to, and the port on that host to connect to. TrafficWatch TrafficWatch is a system for accounting for traffic costs in a residential college/school type environment. It consists of a set of scripts and web pages for accounting for internet usage by volume, and is capable of accounting for both Squid proxy traffic and direct IP traffic. transconnect transconnect allows users behind a HTTP proxy like squid to use applications like telnet,ssh, irc, fetchmail etc as if they were directly connected to the internet. ufdbGuard (commercial) ufdbGuard is a URL filter. The URL filter blocks access to sets of Web sites on the Internet, dynamically detects and blocks proxy tunnels, can enforce use of Google's SafeSearch and optionally blocks https sites that are marked as insecure. Whois Proxy Whois Proxy is a Perl whois tool for looking up the owners, technical contacts, abuse desk, IP address, NIC handle, or ASN of any domain on the internet.
