Hi, I'm using Squid as a reverse-proxy on to a site that is mostly dynamic php. This is working as expected - none of the php files are being cached but images and static html are. I now wish to cache some specific php pages that don't change regularly, but try as I might I can't get squid to cache these. I've set up a very basic test page and I have tried adding several headers, (particularly those suggested by the cacheability engine) but they don't seem to change this behaviour. One strange thing is that the cacheability engine tells me that the web server's clock appears to be inaccurate. But the time being reported is the correct GMT time, (the server itself is on British Summer Time (GMT +1)). This doesn't seem to break the caching of static html anyways so I don't think it's the problem. Can anyone tell me which specific headers I have to output with php to get squid to cache my page? Is there anything else the might be stopping these pages from caching? Thanks, James
