Glype proxy script is a free-to-use, web-based proxy script written in. It is open source, but it is NOT released as GPL or a similar license. Its license requires: either keeping the back link or getting a (paid) license. Glype script has become very popular after PHProxy project ceased. Glype is similar to PHProxy, but there is one fundamental difference: Glype uses curl to retrieve web pages. In addition, compared to PHProxy, Glype has more caching controls. On May 7, 2010, Baron Munchausen, the administrator of Proxy.org announced that he acquired Glype. (source: http://forums.glype.com/news-updates/1286-baron-acquires-glype.html and http://proxy.org/forum/1273292889.html) The official website of Glype is: http://www.glype.com. A live example of Glype is UtopianPal.com. Some tutorials for Glype: How To Install and Configure Glype Proxy Script. http://www.youtube.com/watch?v=aV6TQk3C2c4  

For web proxy webmasters, the first thing is to choose a proper proxy script. In this articles, 5 of the most popular web proxy scripts are compared. This is your definite guide for you on choosing a web proxy script. I received some inquiries periodically on choosing a proxy script to start a web proxy site. So, I decided to post my opinions here. It is always a tough question, when “the best” is involved. However, for a web proxy site, the candidates are quite limited. For simplicity and legal reasons, I will limit my discussion on free scripts only. The possible options usually include: CGIProxy, Glype, PHProxy, Surrogafier and Zelune.

PHProxy (PHP proxy script) was a very popular proxy script before the author,Abdullah Arif, discontinued the project and relinquish all rights (as well as responsibilities) on September 7, 2007. The script is very similar to CGIProxy script. Actually the author also mentioned that the project was inspired by CGIProxy project. However, because PHProxy was written in PHP, compared with CGIProxy, PHProxy is generally easier to install for most webmasters. The last release (version 0.5b2) of this script was on January 27, 2007 under GPL license. The script is available for download in sourceforge. A copy of the last version (0.52b2) can also be found on TheProxyGuide (click to download). A demo of PHProxy script is available at: phproxy.goyap.net Usually PHProxy does not need complicate templates and most webmasters just change the color schemes. A typical proxy sites powered by PHProxy is TheProxyFree.com, which uses the default template with slight modifications. Once of the largest collection of PHProxy (PHP proxy ) script powered websites can be found at:UnRestrictedSurf. Tutorials on PHProxy: 1. How to install PHProxy ( http://www.youtube.com/watch?v=OOwVrm6T0zI  ) 2. PHProxy (PHP proxy) tips and tricks: insert ad code and customization http://www.youtube.com/watch?v=OOwVrm6T0zI http://www.youtube.com/watch?v=3lsaAnr5GFk  

Socks proxy is a type of tunneling using socks 4 or socks 5 protocols.

Tunneling proxy may have various meanings; but most time, this refers to socks proxy. As the name suggests, socks proxy use sock 4 or 5 protocol, which performs at an intermediate layer between the presentation layer and the transport layer. Socks (tunneling) proxy can be used for any form of TCP or UDP socket connection. This means it can be used for most application software (in addition to http connections), e.g., instant messenger.  

Open proxy may have different interpretations, e.g., some geeks deem web-based proxy as open proxy; others may confuse open proxy with unauthentic proxies. Open proxy usually is similar to web-based proxy (e.g., using http protocol), but there are some differences. Web-based proxy retrieves resources for the client, and at the same time some modifications were also made. For example, most web-based proxy scripts rewrite the java script and act as client directly. But most open proxy only fetch the resources and do not make any modifications. Because open proxy uses http protocol for the connections between the client and the proxy server. This makes it different from tunneling, or socks proxy.  

Surrogafier is another proxy script similar to PHProxy. The script only include one php file. The script is not very popular among web proxy webmasters. The initial release (0.7.4.1.b) date was January 9, 2006, and there has been no update since May 6, 2006 (Version 1.0-rc3), according to the project website.

Zelune is another proxy script written in PHP. Its history is quite long; but it has not widely used, partially due to its unclear license terms. It is free, but the license terms was never clearly stated in the download page or with in the script. Also, there are two confusing variations: zelune.com and zelune.net. Now a new member, Phphantom scripts (which was released under GPL), was added to this family in 2008. The website claims that Phphantom scripts will merge with Zelune script; but it seems it is not available at this time yet.

CGIProxy is a free (for non-commercial use only) proxy script written in Perl. The copyright of the script is apparently owned by James Marshall. The script was initially (1.0) release on August 3, 1998. Here is the detailed comparison of PHProxy, CGIProxy and Glype.    

Web proxy also is named as web-based proxy.