On Sun, September 11, 2005 10:26 pm, Brian Rohrbacher wrote:
>>"Do you also have any software that I can install the prevents my
>> children (and me for that matter) from accessing questionable content?"
Sure, just firewall ports 25, 80, 110, and 443 on that customer's
connection. And just to be safe, all other TCP ports as well. Easy
enough...
"Prevents" implies a 100% success rate, which is impossible. No filtering
package can legitimately claim to do this. Not only will something get
through somehow, substantially every filtering package of which I am aware
blocks pages and sites that have no objectionable content. Many filters
will block entire Web servers (shared servers, hosting hundreds or
thousands of sites) because of one customer's naughty site. Some simple
keyword-based filters will block completely inappropriate and/or
ridiculous things ("chicken breasts" and "breast cancer" being a couple
classic examples of things that are probably legitimate but which might be
inadvertently blocked by such a naive filter).
If you want to offer this as a service to your customers, there are
packages like DansGuardian where, with a little networking voodoo, you can
probably make it happen. You might want to consult with your lawyer on a
suitable disclaimer, though, for when (not if) something that someone
finds objectionable still gets through.
David Smith
MVN.net
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