On 22/01/11 08:35, Andy Nagai wrote:
Is it possible to prevent caching of specific pages?
Yes. With great, great difficulty.
Is Squid doing page caching?
No Squid caches reply objects. Individually.
Take for example the CNN front "page" which someone recently complained
was loading slowly.
It is one single page. Built up from 101 objects, spread over 6 types of
media and ten different domain names. The objects change frequently.
In order to prevent that one page from caching (as a whole) you would
have to know all those domains and object URLs and block each one. Squid
cannot do that automatically. Some of the media requests are not even
going through Squid.
At the extreme every one of those objects could be requested by the
client via a different randomly selected physical wire (people actually
do this). More common is that they are requested down multiple unrelated
TCP links.
Amos
--
Please be using
Current Stable Squid 2.7.STABLE9 or 3.1.10
Beta testers wanted for 3.2.0.4
