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RE: Windoze GPO Question
From: "Jason Hurst" <Jason.Hurst () PandaRG com>
Date: Wed, 12 Nov 2008 08:56:25 -0800

Hi Jorge,

the problem with that is that if the DC is not available the users
be able to login...and some sort of VPN connection need to be setup

Individual computers can be setup to cache domain logins in the event
that domain controllers are not available.

This link will take you to Microsoft's baseline security settings for
Windows XP machines:

(For the most part, they match the CIS/SANS checklists)


Another great tool is the NISTs checklists, located here:


The security setting you would be looking for is this one:

Interactive Logon: Number of previous logons to cache (in case domain
controller is not available)
Jason Hurst
Network Security Administrator
Panda Restaurant Group
jason.hurst () pandarg com
Work: (626) 799-9898 ext. 8662
Direct: (626) 372-8038
Fax: (626) 372-8397
-----Original Message-----
From: listbounce () securityfocus com [mailto:listbounce () securityfocus com]
On Behalf Of Jorge L. Vazquez
Sent: Monday, November 10, 2008 3:30 PM
To: Steve Armstrong
Cc: Jon.Kibler () aset com; security-basics () securityfocus com
Subject: Re: Windoze GPO Question

Steve Armstrong wrote:
Gpo's are always applied - otherwise the client could undo security
other features when away from the DC. Remember they are not connected
the domain, but they are still part of it.

Try making an ou for laptop users that have permissions to apply other
dhcp settings.

Plus they should not be logging into 'this computer'. It will mess up
their settings. If you have remote connectivity you still want users
logging into the domain, and this will also allow them to use domain
resourses remotely without having to sign on again.

Having users operating with local accounts on laptops is bad as these
are not subject to domain password policy etc as this is defined on
local system. This usually means users can have blank passwords it the
same ones for years - neither if which are good.

Remember gpo's are for both the machine and the user. Until the
is removed from the domain, domain gpo's will be applied. This is
regardless of the users status (domain or local).

But that's all windows (note spelling) domain/active directory basics
not really doze!

Steve Armstrong

Technical Security Director
Logically Secure

Tel. 01522 689799
Mob. 07970 929583

(sent from a mobile device, so please excuse any typos)

On 10 Nov 2008, at 21:33, "Jon Kibler" <Jon.Kibler () aset com> wrote:


This may be slightly off topic, but I have a question about GPO scope.

I have a client that has a bunch of sales people who have laptops.
they come into their office, they login to the domain. When they are
the road, they login to 'this computer.'

The problem that the client is seeing has left me scratching my head
about how GP works. What is happening is the client has recently set
some new group policies that do things like specify which name servers
and other network resources a given OU is to use. Now, when these
laptops are taken on the road and the user tries to get Internet
it fails. Why? Because the GPO settings are overriding the DHCP
on 'this computer'.

What I don't understand is why DOMAIN OU GPOs are being applied
the scope of the domain. If you are not logging into the domain, why
the domain GPOs in effect? This doesn't make sense. Has my client
somehow misconfigured AD?


Jon Kibler

the problem with that is that if the DC is not available the users won't
be able to login...and some sort of VPN connection need to be setup


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