Unix Servers

NCSA httpd
NCSA has released a server, known as the NCSA httpd; it is available at the URL ftp://ftp.ncsa.uiuc.edu/Web/httpd .
EIT httpd
EIT has created the Webmaster's Starter Kit, which installs their WWW server on your system via the web through a painless forms interface. Recommended for those unfamiliar with server installation. You can learn more about the starter kit and the EIT httpd at the starter kit site (URL is http://wsk.eit.com/wsk/doc/ ).
CERN httpd
CERN's server is available for anonymous FTP from info.cern.ch (URL is http://info.cern.ch/hypertext/WWW/Daemon/Status.html ) and many other places. Use your local copy of archie to search for "www" in order to find a nearby site.
Netscape's Netsite Servers
Netscape Communications Corporation offers two server products, high-end Netscape Commerce Server (capable of secure transactions) and the less expensive Netscape Communications Server. Both products feature a more efficient replacement for CGI (common gateway interface) programming and are designed to be more efficient than traditional free-of-charge servers such as the NCSA and CERN http demons.
GN Gopher/HTTP server
The GN server is unique in that it can serve both WWW and Gopher clients (in their native modes). This is a good server for those migrating from Gopher to WWW, although it does not have the server-side-script capabilities of the NCSA and CERN servers. See the URL http://hopf.math.nwu.edu/.
Perl server
There is also a server written in the Perl scripting language, called Plexus, for which documentation is available at the URL http://bsdi.com/server/doc/plexus.html .
WN Server
The WN Server, available at the URL http://hopf.math.nwu.edu/docs/manual.html , is designed with an emphasis on security and flexibility, and takes a different approach from the NCSA and CERN servers. It provides text searching facilities as a standard feature.

World Wide Web FAQ