Meta http-equiv=”pragma” content=”no-cache”

Jim,

I use this tag but google writes,

The http-equiv values pragma and expires are attempts at bypassing caches without having to set the HTTP headers correctly. These are probably unnecessary uses; any scenario where there is a legitimate reason to limit caching, the author is going to have enough control over the server to send the appropriate headers. In addition, the meta tags can’t be considered reliable (e.g. proxies and transparent caches aren’t going to honour them).
http://code.google.com/webstats/2005-12/metadata.html

So how do you set the HTTP?

Thanks,

Roger