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RE: how to block web messenger services
From: "Nick Vaernhoej" <nick.vaernhoej () capitalcardservices com>
Date: Tue, 27 Mar 2007 08:47:36 -0500

Good morning.

How about a DNS entry? The end users would have to set a static route or
add a line to their hosts file to get around it.

Hosts:
127.0.0.1       urlinquestion.com

Route:
Network Destination             Netmask          Gateway       Interface
    http.ip.of.chat   255.255.255.255          1.2.3.4       127.0.0.1

Modify as needed.

Nick Vaernhoej
"Quidquid latine dictum sit, altum sonatur."


-----Original Message-----
From: listbounce () securityfocus com [mailto:listbounce () securityfocus com]
On Behalf Of nawalmiftahi () gmail com
Sent: Tuesday, March 20, 2007 6:26 AM
To: security-basics () securityfocus com
Subject: how to block web messenger services

Hi all ,
   i am a security admin,yahoo messenger and other chat services are
blocked on our network, but we can access them thru web(ebuddy) , i
wanted to know how can we make sure that these chat services (yahoo
messenger, icq, msn messeger ) cannot be accessed through web as well ,
i mean how to block them.
thanks

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