secd.cifsAuth.problem for NULL user due to misconfigured win-name-for-null-user
Applies to
- ONTAP 9
- CIFS
Issue
Events logged for secd.cifsAuth.problem due to failed authentication for NULL user
Tue May 24 15:48:47 -0500 [cluster-01: secd: secd.cifsAuth.problem:error]: vserver (svm1) General CIFS authentication problem. Error: User authentication procedure failed CIFS SMB2 Share mapping - Client Ip = 10.100.1.101 [ 0 ms] Login by NULL user [ 0] Successfully connected to ip 10.1.1.2, port 445 using TCP [ 7] Successfully authenticated with DC dc1.mydomain.local [ 22] Encountered NT error (NT_STATUS_PENDING) for SMB command Read [ 61] Could not find Windows name '-' **[ 61] FAILURE: Unable to lookup Windows User or group '-' set via cifs server option 'win-name-for-null-user' [ 61] CIFS authentication failed