Hi, I'm working on making squid our new proxy service. The main goal of using squid is to save bandwith between our distant sites. I would like squid to cache authenticated documents (authorize basic auth) but to continue verifying user auth to the final server. If I had ignore-auth in squid config. The document is cached but no longuer authenticated. If I make the server respond "Cache-control: public,proxy-revalidate" in headers the document is not cached. I've been playing with Cache-control parameters with no success (must-revalidate, s-maxage=0, ...). What I would like is : - For the first request on a document, the user sends authorizatrion header. The server sends the document, squid keeps it in cache. - For the following requests on that document, the new authorization header is send by squid to the server with a "If-Modified-Since" header to check cache validity. The server shoud respond "304 Not Modified" if user credetials are OK and document is up to date in cache. Any idea how to configure squid for that ? Rene