[ILUG] Squid and Firewall
Niall O Broin
niall at magicgoeshere.com
Thu Nov 29 17:24:13 GMT 2001
On Thu, Nov 29, 2001 at 05:14:14PM +0000, Paul Kelly wrote:
> > Another Q ... When I use a windows client to my squid proxy, squid seems to
> > dial up, even though it has the requested page(s) in the cache.
> > Is it dns thats causing the dialup ?
> Either that or Squid requesting verification of the page. Check with
> ethereal or tcpdump.
> > Should I do a local caching nameserver to solve this prob ?
> A caching named would be a Cunning Plan indeed.
This can also be a browser thing. It was driving me demented because squid
was definitely reloading things I knew were in its cache. It was discussed
at length here some time ago. The solution is to make a modification to the
squid configuration which is not RFC compliant but stops a lot of browser
requests for unnecessary refreshing of pages. Unfortunately I'm a little
removed from y squid configuation at the moment so I can't find it right
now. Wesley - do you remember what it was because we had a lot of back and
forth on it as you might remember.
The specific test page I was citing was the front page of User Friendly
where the flags are. Thes flags don't change - they're simply static images
but because Netscape sometimes requests tem in a particular way back they
come again. The squid config file mod. turns this request into an "If
Modified Since" which is absolutely rational behaviour, whatever about its
This also made quite a difference for me work wise - I wasn't jsut trying to
speed up UF :-)
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