RE: ISA 2004 Cache
- From: <AHendriks@xxxxxx>
- To: <isalist@xxxxxxxxxxxxx>
- Date: Thu, 14 Jul 2005 09:57:00 +0200
> Sounds like you might be getting some DNS cache poisoning.
> This can completely mess up the ISA cache because ISA gets
> directed to the wrong place.
That was my first thought to, but i have checked dns settings serveral
times, and the dns is resolving the sites well.
> Try using a different upstream DNS provider and see if that helps.
I have only one dns upstream available, which is a internal dns server,
i'm unable to change the dns to a server on the internet, cause the port
has been blocked.
Arjan
>
> > You'll have to be a bit more specific about:
>
> OK, i will place some configuration stuff here.
>
> > 1. your ISA caching configuration
>
> The default cache rule, the only thing i have changed is
> disabling the ftp caching, an second rule which disables
> caching for windowsupdate.microsoft.com.
>
> I have configured a cache size of 10 Gb, and have left
> everything in default.
>
> > 2. what sites
>
> When going to www.google.com the user ends up at www.omroep.nl
>
> > 3. what requests.
>
> HTTP request.
>
> > Generally, ISA caches site content according to the rule
> outlined in
> > the ISA help, but it's also possible to configure it so
> that it caches
>
> > everything in sight (bad thing).
>
> I haven't changed anything in the caching rule, as mentioned
> above, on the server there is a eTrust antivirus client
> active, i have excluded the caching dir for scanning, and the
> processes used by isa are excluded to.
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