There are two ways to set the HTTP header information:
-
Set an HTTP header via the web server. All outgoing pages will have a default
set of headers attached to them that are readable by other web servers, web
caches and web browsers.
-
Set an HTTP header for each
specific page. With this method, a web page must have been created using a
programming language such as JSP or ASP, and then the page is scripted so that
it will send the appropriate header information.
Depending on the web server involved, setting HTTP headers may require more
technical expertise as the server's configuration files are often modified. This
section will provide a general overview and some specific implementation details
for a variety of the most commonly used web servers.
It will also include links
to various sites for more details. This section should be considered an
introduction to HTTP headers; webmasters who will be implementing HTTP headers
should consult their web server documentation for in-depth instruction.
Summoning a web page