[cvsnt] RH Linux ES4 Client recommended protocols?

Gerhard Fiedler lists at connectionbrazil.com
Mon May 14 09:03:29 BST 2007


Tony Hoyle wrote:

>>>> I tried hard, but I couldn't find how to disable NTLM v2. Can you please
>>>
>>> use gpedit.msc. You will find it under computer, Windows settings, security 
>>> settings.
>> 
>> I thought I had looked there... :)
>> 
>> Is it the "LAN Manager Authentication Level" setting? It was originally
>> "Send LM & NTLM responses"; now I set it to "Send NTLMv2 response
>> only/refuse LM & NTLM". Does this sound right?
> 
> That sounds right.  Just do it on every machine.

A few links that may help others with these questions:

<http://support.microsoft.com/default.aspx/kb/823659> "Client, service, and
program incompatibilities that may occur when you modify security settings
and user rights assignments"

<http://support.microsoft.com/default.aspx?scid=kb;en-us;147706> "How to
disable LM authentication on Windows NT"

<http://www.lcpsoft.com/english/articles/passwords.htm> "Theory and
practice of password auditing and recovery in Windows NT/2000/XP/2003"

> The acid test is to run something like LC5 (if you can find it any more) 
> across the network and see if it finds a nice list of passwords for 
> you..

The last link also leads to LCP, a supposed successor of LC5. (Haven't run
it yet.)

Thanks for your help,
Gerhard


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