If you want to use Kerberos, then you need to sync up some configuration files. Use this whitepaper and just follow the directions and smb.conf example in chapter 4:
http://docs.hp.com/en/14985/HPCIFSKerberosV105.pdfIf you want to learn how to use the Windows 2003DC to store both your HP-UX ID and your Windows IDs (you need both for CIFS/Samba), then use this whitepaper (with smb.conf examples):
http://docs.hp.com/en/16322/CIFSUnifiedLoginV2.pdfReview: With CIFS/Samba on HP-UX, the Windows DC will *authenticate* a user logon, but the HP-UX system needs a local user to "authorize" a user to access files and directories. You can configure CIFS/Samba to authorize with "username.map" (simplest), "winbind" (easy to set up, hard to maintain), or Unified Login (hard to set up, easy to maintain).
Eric