[squid-users] Is possible configure Squid to ask a cached resource?

I use squid as a reserve Proxy with cache. When squid has a resource
cached it doesn't send a request to http server to check if the resource
is modified.

I want to know if is possible (and how) to do:

 * Squid send a request to http server asking if the resource is
modified.

* If the http server doesn't answer, squid uses the cached object. (Very
important)

* If the http server answers that the resource is modified, squid gets
the new resource, if not, it uses the cached object.

 
 
Received on Mon Jun 16 2008 - 11:01:58 MDT