Httpd

httpd is the daemon for the Apache web server.

httpd is controlled with the apachectl command, as well as through the Linux distribution's native service control interface (for example the service command in Red Hat / Fedora).

httpd is the name of the web server executable on *nix systems. (When compiled for Windows, the executable is typically named Apache.exe or Apache2.exe.) By extension, the name refers to the entire suite of supporting software. The name stems from the first widely-used web server, httpd from the National Center for Supercomputing Applications (NCSA). This original httpd was developed with tax money in the public domain, and formed the original basis for Apache. The Apache project was originally a patched NCSA httpd, "a patchy" web server.

See also: Apache