Home page logo
/

basics logo Security Basics mailing list archives

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
won't
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)

http://technet.microsoft.com/en-us/library/cc163074.aspx

Another great tool is the NISTs checklists, located here:

http://iase.disa.mil/stigs/checklist/index.html

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
and
other features when away from the DC. Remember they are not connected
to
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
the
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
machine
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:

Hi,

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.
When
they come into their office, they login to the domain. When they are
on
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
access,
it fails. Why? Because the GPO settings are overriding the DHCP
settings
on 'this computer'.

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

THANKS!

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


Jorge
blog:http://pctechtips.org

==================================================
Filtered by: TRUSTEM.COM's Email Filtering Service
http://www.trustem.com/
No Spam. No Viruses. Just Good Clean Email.


The information contained in this e-Mail and any subsequent
correspondence is private and is intended solely for the intended
recipient(s). The information in this communication may be
confidential
and/or legally privileged. Nothing in this e-mail is intended to
conclude a contract on behalf of Logically Secure Ltd or make
Logically
Secure Ltd subject to any other legally binding commitments, unless
the
e-mail contains an express statement to the contrary or incorporates a
formal Purchase Order.  For persons other than the intended recipient
any disclosure, copying, distribution, or any action taken or omitted
to
be taken in reliance on such information is prohibited and may be
unlawful.

Registered in England and Wales No: 05967368.  Registered Office: 36
Tudor Road, Lincoln, LN6 3LL.



  By Date           By Thread  

Current thread:
[ Nmap | Sec Tools | Mailing Lists | Site News | About/Contact | Advertising | Privacy ]