Solved

How to use NTLM authentication instead of LM ?

Posted on 2009-07-08
4
1,705 Views
Last Modified: 2013-12-04
I want can for all my network (Win 2000; Win 2003; XP Pro) stop the use of LN and use NTLM or later.

what is necessery change in registre for this ?
and I want can deploy this by sms in quiet mode.
0
Comment
Question by:thierry91
4 Comments
 
LVL 5

Assisted Solution

by:richy92
richy92 earned 100 total points
ID: 24802159
I think you should be able to do this with a group policy - in computer config, windows settings, security settings, local policies, security options there is a setting : network security:lan manager authentication level - here you can choose the authentication level.

This is what the explanation says :

Network security: LAN Manager authentication level

This security setting determines which challenge/response authentication protocol is used for network logons. This choice affects the level of authentication protocol used by clients, the level of session security negotiated, and the level of authentication accepted by servers as follows:
0
 
LVL 8

Assisted Solution

by:Milan_Ojh
Milan_Ojh earned 100 total points
ID: 24802825
Check the below mentioned link it may help you out:

http://support.microsoft.com/kb/239869

cheers
0
 
LVL 38

Assisted Solution

by:Rich Rumble
Rich Rumble earned 100 total points
ID: 24802936
Level 5 is the only one that uses ntlmv2 exclusively, however Vista/2008/Windows 7 are all set to level-3 by default. This is the most compatible for most domains without causing issues. This can affect Samba and even M$'s own BITS protocol so please test before making a switch.
-rich
0
 
LVL 1

Accepted Solution

by:
Joffer earned 200 total points
ID: 24815398
How do I check the NTLM authentication Setting?

http://www.nbtnet.newboundary.com/support/docs/ppm/ppm/troubleshooting/tasks/ppm0114.htm

This page shows how to do it locally. Shouldn't be difficult to adopt it for a GPO on the domain.
0

Featured Post

What Is Threat Intelligence?

Threat intelligence is often discussed, but rarely understood. Starting with a precise definition, along with clear business goals, is essential.

Join & Write a Comment

NTFS file system has been developed by Microsoft that is widely used by Windows NT operating system and its advanced versions. It is the mostly used over FAT file system as it provides superior features like reliability, security, storage, efficienc…
Container Orchestration platforms empower organizations to scale their apps at an exceptional rate. This is the reason numerous innovation-driven companies are moving apps to an appropriated datacenter wide platform that empowers them to scale at a …
This video discusses moving either the default database or any database to a new volume.
Illustrator's Shape Builder tool will let you combine shapes visually and interactively. This video shows the Mac version, but the tool works the same way in Windows. To follow along with this video, you can draw your own shapes or download the file…

747 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question

Need Help in Real-Time?

Connect with top rated Experts

12 Experts available now in Live!

Get 1:1 Help Now