The Apache HTTP Server Project is an effort to develop and maintain an open-source HTTP server for modern operating systems including UNIX and Windows NT. The goal of this project is to provide a secure, efficient and extensible server that provides HTTP services in sync with the current HTTP standards.

 

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[/url][url=http://httpd.apache.org/]http://httpd.apache.org/

Apache is the best, no doubt about it.

 

I use apache for all my web server needs. It has the best support I believe, and the best security.