Firewall Wizards mailing list archives
Re: Blocking Google Talk
From: Frank Knobbe <frank () knobbe us>
Date: Tue, 20 Jun 2006 13:17:08 -0500
On Tue, 2006-06-20 at 13:49 +0530, Devdas Bhagat wrote:
Bleh. Filtering out nameservers is one way of using a proxy to block traffic. You do run your own recursive resolvers anyway, right?
I do, but that was not the point. (see other email to Paul).
This isn't a bandaid. Oh, and if you really want to stop the problem, why not just prevent the installation of the software in the first place?
Sometimes you don't have control over the computing environment when people bring in their one devices (laptops etc). Your only option is to block where you can, on your networking infrastructure. That's the case in a surprisingly large number of shops, being it Universities or Hospitals. (no, please no "prevent unauthorized devices to the network" debates.)
Firewalls _are_ bandaids. If software was written correctly, you wouldn't need them in the first place.
It's not about software, it's about traffic flow.
My question would be, why aren't you running your own recursive resolver in the first place? Why are your clients directly talking to the world?
Again, not the point, and I'm familiar with Marcus rants about proxies. I'm well aware about myriad of ways to tunnel out. Again, not the point. The point was the lame response by an authority. (see email to Paul) Cheers, Frank -- It is said that the Internet is a public utility. As such, it is best compared to a sewer. A big, fat pipe with a bunch of crap sloshing against your ports.
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Current thread:
- Re: Blocking Google Talk, (continued)
- Re: Blocking Google Talk Kevin (Jun 15)
- Re: Blocking Google Talk Paul D. Robertson (Jun 19)
- Re: Blocking Google Talk Phil Trainor (Jun 19)
- Re: Blocking Google Talk ArkanoiD (Jun 20)
- Re: Blocking Google Talk Phil Trainor (Jun 20)
- Re: Blocking Google Talk Phil Trainor (Jun 19)
- Re: Blocking Google Talk Frank Knobbe (Jun 19)
- Re: Blocking Google Talk Paul D. Robertson (Jun 19)
- Re: Blocking Google Talk Frank Knobbe (Jun 19)
- Re: Blocking Google Talk R. DuFresne (Jun 20)
- Re: Blocking Google Talk Devdas Bhagat (Jun 20)
- Re: Blocking Google Talk Frank Knobbe (Jun 20)
- Re: Blocking Google Talk Dale W. Carder (Jun 21)
- Re: Blocking Google Talk Oliver Humpage (Jun 21)
- Re: Blocking Google Talk James (Jun 27)
- Re: Blocking Google Talk Paul D. Robertson (Jun 27)
- Re: Blocking Google Talk Frank Knobbe (Jun 19)
- Re: Blocking Google Talk Devdas Bhagat (Jun 21)
- Re: Blocking Google Talk Jon Czerwinski (Jun 21)
- Re: Blocking Google Talk Jim Seymour (Jun 21)