Weird caching problem.

  • From: "Ball, Dan" <DBall@xxxxxxxxxxx>
  • To: "[ISAserver.org Discussion List]" <isalist@xxxxxxxxxxxxx>
  • Date: Tue, 8 Feb 2005 13:34:25 -0500

I saw a weird problem today with caching of our web server.  Computers
on one subnet get the current version of a web page, while computers on
another subnet get an older, outdated version.  

 

After talking to them a bit, they said it happens all the time, and it
usually takes a day for them to see the changes they made.  If I use the
hostname of the web server computer as the URL
(http://hostname/webpage.htm), the current page comes up, but if I use
the published URL (http://www.domain.org/webpage.htm) of the same page,
it shows the old version.

 

I did the usual, cleared the Internet Explorer cache, searched the
entire hard drive for other cached copies, restarted IE, etc.., to
verify it wasn't the client that was caching it.

 

I checked the ISA logs, and it said the web request for that page was
passing right through to our webserver, from one subnet to the other.  

 

I created a caching rule on the ISA server to "Never cache any content"
to see if that was the problem, didn't make a difference.

 

I changed the expiration date on the webserver for pages to expire
immediately and restarted IIS, didn't make a difference.

 

Anyone have any other ideas where to look?

 

 

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