Windows Client Authentification bevore Domain logon

[Guy Davies]

Hi Marc,

The only way to do this with the supplicant included with XP is to use machine auth.  This must use the same method used by the individual (i.e. EAP-TLS or PEAP/MS-CHAPv2).

There is a checkbox that says something like "Use machine credentials if available".  Check that and the machine will authenticate before the user.  Once the user authenticates, the machine auth is killed and the user's auth is used.  This requires that the machine has either a PEAP/MS-CHAPv2 username/password or an EAP-TLS certificate.  These are stored in AD so you have to backoff your request to AD.  If you want to do that for PEAP/MS-CHAPv2, you'll need NTLM access to the AD server, LDAP won't do because it can't get the cleartext password (unless it is replicated to a non-standard attribute).

A better method, in my experience, is to use a supplicant with a GINA module.  That stops the windows login process immediately after the user has entered the credentials, takes the user's credentials and uses them to login to the network, then it returns control to the windows login process.  This doesn't require any authentication of the machine.

Regards,

Guy

> -----Original Message-----
> From: freeradius-users-bounces at lists.freeradius.org 
> [mailto:freeradius-users-bounces at lists.freeradius.org] On 
> Behalf Of Marc-Henri Boisis-delavaud
> Sent: 01 September 2005 15:19
> To: FreeRadius users mailing list
> Subject: Re: Windows Client Authentification bevore Domain logon 
> 
> 
> 
> Le 31 août 05 à 18:53, Alan DeKok a écrit :
> 
> > =?ISO-8859-1?Q?J=E9r=E9my_Cluzel?= <j.cluzel at online.fr> wrote:
> >
> >> Sorry, but I didn't find any references of this OID in the
> >> creation scripts in the "scripts" directory (Ca.all, CA.certs...).
> >> The only OID added seem to be 1.3.6.1.5.5.7.3.1 and  
> >> 1.3.6.1.5.5.7.3.2 (in "xpextensions").
> >> Is there any way to do this without patching openssl (like  
> >> explained there 
> http://lists.cistron.nl/pipermail/freeradius-users/ 
> >> 2004-July/034141.html) ?
> >>
> >
> >   You can use that OID just like the other ones.
> >
> >   Alan DeKok.
> > -
> > List info/subscribe/unsubscribe? See 
> http://www.freeradius.org/list/ 
> > users.html
> >
> 
> Can you explain how we can activate 802.1x authentification before  
> logon on xp. And what are the prerequisites ?
> Marc
> 
> 
> 
> - 
> List info/subscribe/unsubscribe? See 
> http://www.freeradius.org/list/users.html
> 

This e-mail is private and may be confidential and is for the intended recipient only.  If misdirected, please notify us by telephone and confirm that it has been deleted from your system and any copies destroyed.  If you are not the intended recipient you are strictly prohibited from using, printing, copying, distributing or disseminating this e-mail or any information contained in it.  We use reasonable endeavours to virus scan all e-mails leaving the Company but no warranty is given that this e-mail and any attachments are virus free.  You should undertake your own virus checking.  The right to monitor e-mail communications through our network is reserved by us.