[squid-users] Http accelerator questions (apologies if you have received this already)

Hi,

I have been playing with Squid (on Solaris) for a couple of days,
trying to implement it as an http accelerator, and I have come up with
a couple of problems. I would appreciate it if anyone could help.

Problem 1) As I am only using Squid as an accelerator, dedicated to
one application, I want to have total control over when objects get
served from the cache, and when they don't - i.e. I don't want a
browser refresh/reload to cause a hit on the accelerated server. In
IE5.5 on the PC this isn't a problem (I think because refresh dosn't
work properly). However on Netscape (6.0) I am having the following
problem - On a shift-refresh, the browser sends a http cache-control
no-cache header. I have successfully disabled this with ignore-reload
in the refresh_pattern config - this works fine. However if a netscape
user presses just refresh (no shift), this sends a http cache-control
max-age=0 header, and this always seems to cause a TCP_MISS/200 no
matter what I try. Help|

Problem 2) I only want to expire objects from the cache when the
application decides they have been updated, so I want to do this
programatically. That's fine, however to keep things in cache until I
directly purge it (I think) I have to send a http expire header far in
the future (say 10 days). However I want squid to serve an expires now
header to any browsers, so browsers will always check the squid cache
for the latest version (and not wait 10 days). Does anyone know if
this is possible?

Thanks in advance for any useful help.

Dan

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Received on Tue Oct 16 2001 - 05:58:33 MDT