Firstly I am new to FreeRadius and am configuring my first radius server to talk to our Windows 2003 AD.

I have intalled and configured  FreeRadius 2.1.8 to talk to the AD as documented in various tutorials on the internet.

Initially I had configured the connection between the Freeradius server and our Windows 2003 Active directory using ntlm_auth.

Using the command line

        ntlm_auth –-request-nt-key –-domain=<your domain> –-username= <your username>

comes back with

NT_STATUS_OK : Success (0x0)

Which is what i would expect as a valid username and password.

 Now when I go to the next step and enable this in /etc/raddb/modules/mschap

        ntlm_auth = "/usr/bin/ntlm_auth --request-nt-key --username==%{%{Stripped-User-Name}:-%{User-Name:-None}} --domain=%{%{mschap:NT-Domain}:-OURDOMAIN} --challenge=%{mschap:Challenge:-00} --nt-response=%{mschap:NT-Response:-00}"

Our active directory server does comes back with an error. When I look at the server log on our AD it shows

Event Type:     Failure Audit

Event Source:   Security

Event Category: Account Logon

Event ID:       680

Date:           17/03/2010

Time:           13:35:51

User:           NT AUTHORITY\SYSTEM

Computer:       DCB

Description:

Logon attempt by:       MICROSOFT_AUTHENTICATION_PACKAGE_V1_0

 Logon account: =<radius_user>

 Source Workstation:    \\<radius_server>

 Error Code:    0xC0000064

When I google the windows error code I get

Error code: 0xC0000064 - This error code can occur if a server is configured to Require NTLMv2 Session Security and the client either is configured to not use it or is unable to negotiate it (e.g., Altiris DOS network boot stuff).

I know our server is configured for NTLMv2 and not V1.

Any ideas on how I can resolve this issue ?

I cannot understand why running the command works and using the line in MSCHAP fails ?


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