Dan,
This sounds like the same issues I am having with Netmeeting and Yahoo's Chat.
Lakers
-----Original Message-----
From: Dan McGinn-Combs [mailto:[EMAIL PROTECTED]]
Sent: Wednesday, January 24, 2001 2:39 PM
To: '[EMAIL PROTECTED]'
Subject: RE: Blocking AOL Messenger
I am also interested in blocking this kind of access. The primary security
reason is that people tend to view this as a secure form of private
communication between two people. As a result they tend to share
confidential information that should not be transmitted over a clear channel
using a non-company resources and servers. People just don't think about
what they are doing.
Surf Control has some wonderful capability to stop connections in their
tracks, but I'm not sure even it can pick an AOL messenger message out of
the soup on port 80.
Dan
-----Original Message-----
From: Frederick M Avolio [mailto:[EMAIL PROTECTED]]
Sent: Wed, January 24, 2001 3:50 PM
To: Andrew Tseng; '[EMAIL PROTECTED]'
Subject: Re: Blocking AOL Messenger
I sometimes teach classes, so I am interested in knowing why you are
blocking it. What are you concerned about? Also, does the corporate
security policy or acceptable use policy address it?
Thanks.
Fred
At 02:45 PM 1/24/01 -0500, Andrew Tseng wrote:
>Hi:
> My company uses Checkpoint FW-1 4.0 running in a NT 4.0 box. Is
> there any way to block users using AOL messenger ? I blocked AOL
> messenger default port:5190 but it swithed to other ports such as 53, 23
> or 25 which have to be opened. Also, connections of AOL logon host
> "login.oscar.aol.com" and AOL Netblock "64.12.149.0", "152.163.180.0"
> are disallowed. However, I still see users happy using AOL messenger
> which really discourage me. Could anyone give me some ideas how to block
> AOL Msgr? Should I block AOL Msgr by port or address basis or I have to
> buy third-party SW like WebSense or SurfControl? Any comments will be
> appreciated.
>
>
>Andrew Tseng
>
>Ikegami Electronics USA
>37 Brook Ave
>Maywood, NJ07607
>
>-
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