On 24/04/2013 8:05 p.m., Carlos Defoe wrote:
I think it's a squid -> server message, and the cache is nginx. Hey Amos, squid will always respond with a MISS to requests with "Cache-Control: max-age=0" ? There's a way to ignore it with configurations?
Reverse-proxy are allowed to use the ignore-cc option on http_port and https_port lines.
refresh_pattern directive provides the reload-into-ims option to convert it from a force-reload to a if-modified request based on a URL regex pattern.
I'm thinking about windows updates, MS probably sets that to zero. In what other situation a client does this?
In any situation where the client *requires* the absolute latest copy of something regardless of whether a slightly older copy has ben cached already.
If you want to override this for windows updates, consider the effect that will have on clients security and target any overrides very particulrly. Ignoring it when fetching the list of new packages for example will make your clients WU display "no updates requried" for some time after even the most critical updates are published. But ignoring it on the CAB files themselves would be far less problematic.
Amos
