[squid-users] Dynamic upstream proxy?

[Chris Wilcox]

Hi all,

I use Squid to perform local caching in many of the schools I support.  I've 
always been able to point the upstream proxy settings in Squid to our County 
Councils proxies and this has worked fine.

Local caches installed by myself have not been part of our Counties 
strategy, and they would rather schools purchased �3500 ISA Server 
hardware/software.

County have now dictated that all browsers which access the Internet via a 
County Council connection must use a proxy.pac file to gain their internet 
settings.  The use of a local cache such as Squid will no longer be 
supported, and apparently I will be unable to point Squid at the upstream 
proxy IP and port, as this will be be unavailable.  Not quite sure how this 
will work though, as I see no reason why I can't continue to to point Squid 
boxes at the proxy IP and port which would officially be setup on local 
computers via the proxy.pac file.

I'm fairly confident that dynamic upstream proxy configuration within Squid 
is not only impossible, but would go against how caching works and is 
configured in general.  Can anyone confirm that dynamic upstream proxy 
settings are not supported by Squid (or any other cache!)?

Regards,

Chris

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