his any one know how to configure windows 2003 AD group users in squid proxy server.

problem solved thnks for the reply.B)

i installed RHEL 5 with samba 3.0.28 and want to integerate this server with my windows 2003 R2 AD. with the help of the below link i configured the required file.
http://www.brentnorris.net/samba2005.html

when i try to attach the server into domain using
net ads join -U username@domain name. i get the error message
[root@sambatest ~]# net ads join -U elvbk@KSLND6.*****.CO.IN
Host is not configured as a member server.
Invalid configuration. Exiting....
Failed to join domain: Invalid domain role. i attach the configuration of smb & krb and test results of kinit, testparm, net ads info. in the samba file. [file name=Samba.txt size=2957]http://www.linux.com/media/kunena/attachments/legacy/files/Samba.txt[/file]