Proxy Servers for SOCKS4 and Instant Messengers

For some time I've been looking for a way to securely remote certain protocols through a remote server. I've finally found several free SOCKS4 compliant server products that allow you to open one port to them, and they proxy requests to the original server. Particularly good for getting IM to work at places that block it, or sniff it. So far I only have AOL IM working, and it does allow me to do SecureIM over it. Next is IRC. I've started with the Analog X product. They have a SLEW of other neat network related tools.

http://www.analogx.com/contents/download/network.htm

A list of free Proxy Products

http://www.webattack.com/freeware/network/fwproxy.shtml

FreeProxy

http://www.snapfiles.com/get/freeproxy.html

http://www.handcraftedsoftware.org/

FreeProxy is a proxy server with support for HTTP, SMTP, POP, FTP over HTTP, TCP Tunneling, NNTP and SOCKS5. It works with a wide range of clients including web browsers, ICQ, MSN Messenger and many others. Features include user authentication to both an internal user database or to a windows domain, extensive reporting, resource permissions, URL filtering, IP address filtering, local port binding, on-demand dialing, calendar control, proxy chaining, HTTP Cache and numerous other features. FreeProxy also includes a small web server and can run as a service on all current platforms. Very detailed help is included that documents all aspects of the setup and client configuration.

AnalogX Proxy

http://www.analogx.com/contents/download/network/proxy.htm

Looking for a fast, simple to use, free way to share your Internet connection with several computers? Then AnalogX Proxy is what you re looking for! Allows multiple machines on a local network to access the Internet through one machine - great for small businesses and individuals alike. Supports web browsing (HTTP/HTTPS), file transfer (FTP), mail (POP3/SMTP), news (NNTP), and now even Socks4/4a for things like AOL, AIM, MSM, etc!

STunnel

http://www.stunnel.org/faq/install.html#ToC2
Stunnel can work by either:

• Receiving unencrypted data and sending it to an SSL server
  
• Receiving encrypted data and
  
• Sending the decrypted data to an arbitrary port on that or another machine
  
• Launching a local program (as does inetd) to talk to the remote machine over the encrypted channel.
  
• On unix machines, Stunnel can be run out of inetd, much like telnetd or ftpd, or it can be run as a standalone daemon, which in general is the prefered method. On NT it can only be run from a command prompt (DOS window,) not as a true NT service. We list several 'hacks' that let you do this, however, in the FAQ.
  

• Being an SSL client
  
• Being an SSL server
  
• Server and client side certificate verification
  
• TCP wrapper support
  
• IDENT lookups
  
• SMTP protocol negotiation
  
• Source address rewriting (transparency) (where supported by the OS)
  
• Restricting allowed SSL ciphers
  
• Stunnel can help:
  
• Protect interception of data
  
• Prevent manipulation of data
  

IRC Proxy

http://www.ircproxy.night-light.net/

Night Light IRC Proxy (ircproxy) is a multi-user IRC (Internet Relay Chat) proxy written in C for UNIX compatible systems.

If you do not know what IRC is, then IRC proxy probably isn't for you. A IRC proxy is a program which works like a client and server, you connect to it with your IRC client and it connects you to the chosen server.

This way you are protected behind the machine running the IRC proxy, connecting through a proxy will hide your machine's IP-address from other users on IRC.