Hi, I used the document freeRadius_AD_tutorial.pdf for configuring a linux box to get authenticated through users in Windows 2003 AD. I used the command net join -U Administrator to add the machine to the domain. It gave successful results. Now on typing the command wbinfo -a checkad%Quark_123 I got the following results:- plaintext password authentication failed error code was NT_STATUS_NO_SUCH_USER (0xc0000064) error messsage was: No such user Could not authenticate user checkad%Quark_123 with plaintext password challenge/response password authentication failed error code was NT_STATUS_CANT_ACCESS_DOMAIN_INFO (0xc00000da) error messsage was: NT_STATUS_CANT_ACCESS_DOMAIN_INFO Could not authenticate user checkad with challenge/response Also, on giving the command # ntlm_auth --request-nt-key --domain=india.quark.com --username= checkad password: NT_STATUS_CANT_ACCESS_DOMAIN_INFO: NT_STATUS_CANT_ACCESS_DOMAIN_INFO (0xc00000da) [root@Radius etc]# I get the above stated error. Please help. Thanks & Regards Varun Marwah CONFIDENTIALITY NOTICE This e-mail transmission and any documents, files, or previous e-mail messages appended or attached to it, may contain information that is confidential or legally privileged. If you are not the intended recipient, or a person responsible for delivering it to the intended recipient, you are hereby notified that any disclosure, copying, printing, distribution, or use of the information contained or attached to this transmission is STRICTLY PROHIBITED. If you have received this transmission in error, please immediately notify the sender by telephone (+91-172-2299137) or return e-mail message (vmarwah@quark.com <mailto:vmarwah@quark.com> ) and delete the original transmission, its attachments, and any copies without reading or saving in any manner. Thank you.