Zeus Web Server

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Zeus Web Server was a proprietary web server for Unix and Unix-like platforms (currently Solaris, FreeBSD, HP-UX and Linux). It was developed by Zeus Technology, a software company located in Cambridge, England. The original authors and company founders are University of Cambridge graduates Damian Reeves and Adam Twiss.

Support for AIX, Tru64, and Mac OS X was dropped on 10 June 2008.[1] ZWS hasn't been updated since January 2010,[2] and the company no longer offers a similar server solution. In July 2011, the company was acquired by Riverbed Technology[3] and ended product support November 30, 2014.[4]

Zeus was designed to be a high-performance web server[5] and was commonly used by hardware vendors submitting SPECweb99 benchmarks for their hardware.[6] The SPECweb99 benchmark was retired in 2005 and replaced by SPECweb2005.[7] While some SPECweb2005 submissions were made using Zeus, by 2008 it was no longer among the top performers.[8]

In addition to static content serving, Zeus supported dynamic content via CGI, FastCGI, Apache JServ, ISAPI, NSAPI, mod_perl, SSI and Zeus Distributed Authentication and Content (ZDAC), a proprietary FastCGI-like protocol. While Zeus mainly competed with other commercial web servers such as Oracle iPlanet Web Server, it also claimed a high degree of compatibility with Apache HTTP Server (e.g. .htaccess and mod rewrite), with the expectation that Apache users will migrate to Zeus as their server load increases.[9] NSAPI and ISAPI are supported to ease migrations from Microsoft IIS and Sun Java System Web Server.

See also[edit]


  1. ^ "ZWS: selected platforms - end-of-life announcement (News)". Zeus Technology. 10 December 2007. Retrieved 2008-12-21. [dead link]
  2. ^ "ZWS 4.3r5 released (News)". Zeus Technology. 13 January 2010. Retrieved 2012-05-23. [dead link]
  3. ^ "Riverbed Expands IT Performance Business with Acquisition of Zeus Technology". Riverbed Technology. Retrieved 8 September 2013. 
  4. ^ "Hardware & Software End of Life Policy". Riverbed Technology. Retrieved 10 February 2014. 
  5. ^ "Web Server Software". Zeus. Retrieved 2008-12-21. 
  6. ^ "All SPECweb99 Results". SPEC. Nov 21, 2005. Retrieved 2008-12-21. 
  7. ^ "Retired SPEC Benchmarks". SPEC. Retrieved 2008-12-21. 
  8. ^ "All SPECweb2005 Results". SPEC. Dec 19, 2008. Retrieved 2008-12-21. 
  9. ^ Clyman, John (2002-01-15). "Zeus Web Server 4.0". Server's Advantage PC Magazine Editor's Choice Winner (PC Magazine). Retrieved 2008-12-21. 

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