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List:       ipcop-user
Subject:    Re: [IPCop-user] Blocking Instant Messaging
From:       "Colin Ferguson" <coltect () northnet ! com ! au>
Date:       2007-05-31 22:53:07
Message-ID: 00c901c7a3d6$74eb6060$630aa8c0 () 1200b
[Download RAW message or body]

G'day Joel, and everyone else who has been helpful,

I've not had enough spare time to work on this properly, and for now the
kids are connected and working in the orange subnet.
This eases my paranoia, and they can catch whatever they want from the
internet.

Using QoS to slow down the messenger data would probably not stop them, just
make them whinge more about my slow connection speed (128k ISDN), but I
don't think that any of the IM apps would use a lot of bandwidth when they
are just typing/chat anyway.

Hacking the registry on their PC's to stop messenger working would be ok,
but they can easily bring home a different client from school and install
that, and away they go.

I still think that the only possible way to block this IM traffic completely
is by using some type of  Layer 7 filtering, and will one day get back to
trying out the Layer7Block. When I do I'll let the list know how I go.

Thanks all,
Col


----- Original Message -----
From: "Joel Nahrgang" <joelsn@csdca.com>
To: <ipcop-user@lists.sourceforge.net>
Sent: Thursday, May 31, 2007 11:21 PM
Subject: Re: [IPCop-user] Blocking Instant Messaging


> Hi Colin,
>
> Have you tried to disable MSN on your computer(s), I know there is a
> registry hack to do this, but it disables it for all users and doesn't
> prevent your kids from reinstalling it or installing another one.
> Would a NetNanny type software work too, I've never used it so I can't
> comment.
>
> Joel
>
> -----Original Message-----
> From: ipcop-user-bounces@lists.sourceforge.net
> [mailto:ipcop-user-bounces@lists.sourceforge.net] On Behalf Of Yaniv Fer
> Sent: May 31, 2007 3:37 AM
> To: Edddie Brenda
> Cc: IPCop-user@lists.sourceforge.net
> Subject: Re: [IPCop-user] Blocking Instant Messaging
>
> maybe you can try to do QoS on that ports\services and make them so slow
> that they stop using it :-)
>
> On 5/31/07, Edddie Brenda <brenddie@gmail.com> wrote:
> >
> > > >
> > > > nope..most if not all of the im's will search for port 80 and will
> > > > tunnel out of that as well.  P2p apps do this as well.
> > > >
> > >
> > > Oh man!
> > > Can't ICANN or the FBI or UN do something about it? Using another
> > > application's port for different purpose in really unethical, don't
you
> > > think?
> > >
> >
> > ......
> >
> > anyway, layer7blocker is the way to go if you want to block
> > applications. I have had success blocking MSN and AIM. Dindt have much
> > luck blocking bittorrent most likely because it can use SSL for its
> > connections , havent done much testing besides an initial test. If you
> > cant control what applications run in the client PCs then you don't
> > have many other options besides layer7blocker.
> >
>
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