We use Dans Guardian and Squid. It does a fairly good job with most
things, but any content filter is always "out of date" there are just to
many web sites out there to keep up. We also monitor our computer
connections to see where our most "abused" computers are surfing. By
doing that we catch most of the new sites that have not made it into the
filter yet. We also can monitor the user names of the surfers so we can
shut down internet access to abusers that way.

-----Original Message-----
From: School Information Technology Discussion
[mailto:[log in to unmask]] On Behalf Of Isham, David
Sent: Friday, December 08, 2006 7:59 AM
To: [log in to unmask]
Subject: Re: use of proxy websites for anonymous surfing

At GISU we use iprism. Proxy blocking seems to be what it mostly is
blocking these days. I have gotten thru using a proxy in testing, but
they usually get blocked soon. No way could you keep up with it

Iprism costs money. I have heard "Dan's Guardian" is free, but don't
know how well it works.

David Isham
Network Administrator
Grand Isle Supervisory Union
5038 US Rte 2
North Hero, VT 05474
802-372-6921 vox
802-372-4898 fax

-----Original Message-----
From: School Information Technology Discussion
[mailto:[log in to unmask]] On Behalf Of John Munson
Sent: Thursday, December 07, 2006 3:38 PM
To: [log in to unmask]
Subject: use of proxy websites for anonymous surfing

Here at Blue Mountain we recently are experiencing a problem with
students accessing proxy websites that allow for anonymous web surfing,
thus thwarting our content filter. In response we are doing a schoolwide
education piece, as well as upping the consequences to students for this

particular infraction. We also have added several of the proxy website
URLs to the custom blocked list, but don't for a moment think we'd be
able to

determine/keep up with them all. (btw, we use Sonicwall for content

Is this the extent of what can be done to address this problem or are
there other options that we've missed here at the school?

Thanks for any assistance on this,

John Munson
Technology Coordinator

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