Re: how does squid work?

At 01:28 PM 4/29/99 +1000, Tim Burgess wrote:
>Dear Everyone,
>
>How does squid behave when it has an object in its cache which has no expiry
>information? It obviously doesn't just automatically assume it is expired,
>and do an IMS request every time (since we still have normal TCP_HIT entries
>in our access.log for non-expiry info objects) because then every entry in
>the log would be TCP_REFRESH_* and never a TCP_HIT - not many sites provide
>expiry info. Is there a preset TTL for objects with no info?

The refresh rules (see squid.conf) help to calculate the time a file is
"fresh". The refresh rules specify a minimal time, a percentage of the file age
(calculated from th e last modified date) and a maximum age. Using the refresh
rules you can configure these parameters per filetype, url etc.

Marc
>
>Thanks,
>
>Tim
>
>
>

---------------------------------------------------------------------
Marc van Selm
NATO C3 Agency
Communication Systems Division, A-Branch
Tel: +31 70 3142454
E-mail: marc.van.selm@nc3a.nato.int
---------------------------------------------------------------------
Private: selm@cistron.nl, selm@het.net, http://www.cistron.nl/~selm
Received on Thu Apr 29 1999 - 01:20:08 MDT