Apache currently has over 60% of the market share and is the most used web server.
The Apache web server.
The apache http server
The Apache Foundation is most widely known for their Hypertext Transfer Protocol server.
Apache is the world's leading and most commonly deployed web server. The majority of the web sites on the Internet run on an Apache server,
Apache Web Server is the most popular web server software on the internet. It is available for all major operating systems, and supports most application frameworks (except for .ASP).
httpd.conf is probably the most important. It holds every setting of the Apache Server. One typo in this file can send your server into a self-destructive spiral of doom. I'm not sure about the others, hope this helped. Fireblazer
"According to consumer voting, the best premium application server is IBM WebSphere. The most efficient open source application server is Apache Geronimo."
HTML code is interpreted by a WWW server. Most popular are Apache, IIS and nginx.
There are really to many to accurately list Generally Linux is deployed for most dedicated servers and host and array of different things the most common of which is LAMP (Linux Apache MYSQL PHP) which is the Linux based Web Server package
Defining them in the Server Explorer's Variables tab is the most common way to create an application level server variable.
Apache's home is in the Apache Software Foundation (ASF), which is a nonprofit organization based in Forest Hill, Maryland, USA. The ASF provides support for various open-source software projects, including the well-known Apache HTTP Server, one of the most widely used web server applications. The foundation promotes collaborative software development and ensures that the projects are freely available to the public.
The most popular web server on the Internet is Apache, with approximate 46% of the total market share. The second most popular is IIS, with 22% of the market share. You can view monthly statistics on web server market share at the related link below.