Hi all, I recently setup Samba to auth to Active Directory - wow do I feel like an alchemist for doing that - despite the deceased foul involved in getting this setup - it is now working very well. My problem comes in that logging from AD is constantly complaining about failed authentication. I assume that as the User ID field shows only the SID that AD can not (reverse) map the user - so it's failing - but if my samba is working well - how can I find out what is trying to auth?? Has anyone else set this up and figured out how to maybe cache appropriate credentials to keep the errors from spewing? Example error: Where earth is DC Goethe is the Unix host - <13>Aug 10 08:15:09 earth MSWinEventLog 2 Security 12336 Wed Aug 10 08:15:09 2005 675 Security SYSTEM User Failure Audit EARTH Account Logon Pre-authentication failed: User Name: goethe$ User ID: %{S-1-5-21-934913212-3928056223-3945149382-9156} Service Name: krbtgt/CORP.PHILLIPS.COM Pre-Authentication Type: 0x0 Failure Code: 0x19 Client Address: 172.17.81.164 12232