<p>These variables are available to the CGI programmer, and
are half of the story of the client-server communication. The
complete list of required variables is at
- <a href="http://hoohoo.ncsa.uiuc.edu/cgi/env.html">http://hoohoo.ncsa.uiuc.edu/cgi/env.html</a>.</p>
+ <a href="http://www.ietf.org/rfc/rfc3875">Common Gateway
+ Interface RFC</a>.</p>
<p>This simple Perl CGI program will display all of the
environment variables that are being passed around. Two
<p>These variables are available to the CGI programmer, and
are half of the story of the client-server communication. The
complete list of required variables is at
- <a href="http://hoohoo.ncsa.uiuc.edu/cgi/env.html"
- >http://hoohoo.ncsa.uiuc.edu/cgi/env.html</a>.</p>
+ <a href="http://www.ietf.org/rfc/rfc3875">Common Gateway
+ Interface RFC</a>.</p>
<p>This simple Perl CGI program will display all of the
environment variables that are being passed around. Two