kerberos configuration for Samba Server

[Ankush Grover]

Hey Friends,

 I want to make the Samba Server a domain member of the Windows 2003 Server.

I have added these entries in samba server (/etc/samba/smb.conf)

workgroup = sis
realm= SIS.COM
security = ads
password server = server.sis.com

and other entries are also made in samba server.

But i don't know how to configure kerberos to make it work with samba
server.What packages should i install like workstation package or
server package.Which files to configure for kerberos.

Any tutorial or step by step configuration will be very helpful.

Thanks & Regards

Ankush Grover