On Tuesday 22 July 2003 03.37, Tan Jun Min wrote:

> if there is no clients asking for it, how long a cached objects
> will be refreshed or updated?

Never. Why should Squid spend time and network resources on updating 
an object nobody is asking for?

Eventually it will get removed from the cache to make room for newer 
objects if needed.

> is there any parameters in squid.conf that control it?

You can only tune what happens if a client requests the object.

Regards
Henrik

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