[Web4lib] Help - Browser Hijack? Webpage hijack?

[mom at netmom.com]

Hi, we had a case of DNS poisoning recently that presented like this. The
Macs and the PCs on the network got their DNS differently. So...the Macs
showed a real ebay page while the PCs showed a bogus one. We finally
traced it to a longer than necessary "time to live" (TTL)in our DNS
server's cache. Now the thing flushes every couple of hours and goes out
to AT&T to ask for instructions afterwards.
DNS poisoning is an increasingly critical problem that occurs higher up
the DNS chain than individual institutions can reach. There is a wikipedia
article that provides a good intro if you have never heard oif this before
http://en.wikipedia.org/wiki/DNS_cache_poisoning
There are technical solutions under discussion including DNSSEC, which is
not yet widely deployed.


One of the librarians in my system says that when he goes to the
> following pages - in FIREFOX only - he gets garbage. For one page he
> gets a display of CSS (but not the page's CSS; someone else's) and on
> other pages he gets what looks to me like what happens when you open an
> image with a text editor (all those nonsensical symbols). He sent
> screenshots to me. Can anyone verify or suggest a reason? They test fine
> for me.
>
> http://www.tularecountylibrary.org/folvisa.htm
> http://www.tularecountylibrary.org/folexeter.htm
> http://www.tularecountylibrary.org/comp/computer.htm
>
> Many thanks,
>
> Sarah A Smith
> Web Development Librarian
> San Joaquin Valley Library System
> 2420 Mariposa Street, Fresno, CA 93721
> 559.488.3260      sarah.smith at sjvls.org
>
>
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