Re: Native Mode and Win9x/NT Clients Authentication

From: Fred Yarbrough (fyarbrou@yahoo.com)
Date: 07/27/02


From: "Fred Yarbrough" <fyarbrou@yahoo.com>
Date: Fri, 26 Jul 2002 21:49:57 -0500


Thanks for all of your inputs. I guess that I got confused in the original
article that I found on the GIAC.org site that said
"Keep in mind that NTLM is not available in Native mode. "

>From what you are saying and what I have read now elsewhere, NTLM IS
supported in Native mode, it is just not the prefered authentication method.

Thanks,
Fred

"Fred Yarbrough" <fyarbrou@yahoo.com> wrote in message
news:uGq0ZOQNCHA.1700@tkmsftngp09...
>
> I have been searching all over the Internet and still have not found an
> exact answer. I know that once all of your NT 4 DC's have been converted
to
> Windows 2000 you can then switch to Native mode. Windows 2000 Pro clients
> will authenticate using Kerberos. How will Windows 9x/NT clients
> authenticate? Will they use the NTLM and authenticate against the PDC
> Emulator or do you have to load some piece of software on them to make
them
> Kerberos aware? I am finding bits and pieces of info but nothing that
says
> it all in one area. One document that I have seen at
> http://www.giac.org/practical/Deirdre_Perkins-Moore_gcnt.doc states the
> following:
>
> Windows 2000 supports NTLM logon (same as NT4), Kerberos logon, smart card
> logon, or certificate mapping such as LDAP. Keep in mind that NTLM is not
> available in Native mode. There is Kerberos support for other clients
such
> as Win98, but this requires that you install the Directory Services
client.
>
> Is this correct about there not being NTLM in Native mode? I thought that
> the PDC Emulator would have provided this for backward compatibility. I
am
> not too wild about going out to our 2500 clients to load a Directory
> Services client unless I have to. What's your take on how clients
> authenticate when switching to Native mode????
>
>
> Thanks,
> Fred
>
>



Relevant Pages

  • Re: ntlm
    ... NTLM is still used for down level clients. ... means the DCs will no longer talk to NT4 DCs. ... > We are thinking about switching from Windows 2000 mixed to native mode. ... We still have some downlevel clients with those being Windows NT ...
    (microsoft.public.win2000.active_directory)
  • Native Mode and Win9x/NT Clients Authentication
    ... Windows 2000 you can then switch to Native mode. ... will authenticate using Kerberos. ... How will Windows 9x/NT clients ... Will they use the NTLM and authenticate against the PDC ...
    (microsoft.public.win2000.security)
  • Re: Native Mode and Win9x/NT Clients Authentication
    ... Windows 9x or NT machine, ... I assume that this is for a Windows 2000 AD in Native mode! ... > will authenticate using Kerberos. ... How will Windows 9x/NT clients ...
    (microsoft.public.win2000.security)
  • Re: Native Mode and Win9x/NT Clients Authentication
    ... > Windows 2000 you can then switch to Native mode. ... > will authenticate using Kerberos. ... How will Windows 9x/NT clients ...
    (microsoft.public.win2000.security)
  • Re: ntlm
    ... NTLM is still used for down level clients. ... means the DCs will no longer talk to NT4 DCs. ... We still have some downlevel clients with those being Windows NT ... native mode, it disables NTLM authentication which is needed for the ...
    (microsoft.public.win2000.active_directory)