debuglevel The value of the parameter (a astring) allows the debug level (logging level) to be specified in the smb.conf file. This parameter has been extended since the 2.2.x series, now it allows one to specify the debug level for multiple debug classes. This is to give greater flexibility in the configuration of the system. The following debug classes are currently implemented: all tdb printdrivers lanman smb smb2 smb2_credits rpc_parse rpc_srv rpc_cli passdb sam auth winbind vfs idmap quota acls locking msdfs dmapi registry scavenger dns ldb tevent auth_audit auth_json_audit kerberos Authentication and authorization audit information is logged under the auth_audit, and if Samba is compiled against the jansson JSON library, a JSON representation is logged under auth_json_audit. Support is comprehensive for all authentication and authorisation of user accounts in the Samba Active Directory Domain Controller, as well as the implicit authentication in password changes. In the file server, NTLM authentication, SMB and RPC authorization is covered. Log levels for auth_audit and auth_audit_json are: 2: Authentication Failure 3: Authentication Success 4: Authorization Success 5: Anonymous Authentication and Authorization Success 0 3 passdb:5 auth:10 winbind:2