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RE: Re : Block simulteneuos logons
From: "Kevin Ortloff" <Kevin.Ortloff () j2global com>
Date: Fri, 16 Nov 2007 09:41:28 -0800

if you're using AD. in the user properties, there is a ' sessions ' tab that allows active session limits... Idle 
limits, etc...

Try there.

-----Original Message-----
From: listbounce () securityfocus com [mailto:listbounce () securityfocus com] On Behalf Of abdelhakim aliane
Sent: Wednesday, November 07, 2007 11:13 PM
To: Ansgar -59cobalt- Wiechers; security-basics () securityfocus com
Subject: Re : Block simulteneuos logons

Hi, have you tried this tool, it is my favorite one in users logons management : Userlock at 


----- Message d'origine ----
De : Ansgar -59cobalt- Wiechers <bugtraq () planetcobalt net> À : security-basics () securityfocus com Envoyé le : 
Mercredi, 7 Novembre 2007, 19h07mn 34s Objet : Re: Block simulteneuos logons

On 2007-11-07 jd () eyesizwe co za wrote:
I need assistance with the following query.. My company has a lot of 
remote access users and the problem that I am having is that most of 
my users use their AD accounts simulteneously. What I mean is that my 
users have dialing access and dial back options and what they do is 
they allow their family members to use their accounts during the day 
while they are at work working. So what I want to do is to block or 
allow only single logon for all users on the network. I want my
to be able to detect if the user has already logged on be either by 
dialup or network and deny the 2nd logon. what solutions can I 

Your users should not give their families access to company resources  as that raises both security and legal problems. 
This is a social problem, which shouldn't be addressed by technical measures alone.

Suggest to your management to write up a policy that prohibits private use of corporate resources and have the users 
sign it. Make clear to your users that repeated violation of said policy will lead to unemployment (also explain to 
them why they should not allow their families to use company resources). Monitor successful logons to detect policy 

Ansgar Wiechers
"All vulnerabilities deserve a public fear period prior to patches becoming available."
--Jason Coombs on Bugtraq

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