Block HTTP for domains

[konsument]

Hi
Does anyone have any experience in blocking domain names through Firewall-1.
I would like to disable http access to domains like hotmail.com or yahoo.com to prevent users from downloading viruses via webmail.
This becomes difficult, because providers like hotmail don't have a single IP-Address assigned to their domain name.

Have you got any idea how to accomplish this?

Thanks in advance!

Mark

 

[Piloria]

you may be able to do this via a URI resource (never tried it so cant give any more info)