INSTRUCTION

net lookup {<ipaddr> | <hostname>}

1. Issue the following commands from any windows client which is part of AD:

   • C:\nslookup <IP address of DC> IP address to name resolution and will show FQDN of the host. 
     C:\nslookup <realm> will provide all the domain controller hostname assigned to IP addresses. 
     C:\nslookup <Data Domain systemFQDNhostname> will provide IP of the Data Domain system. 
     C:\nslookup <IP of Data Domain system> provides IP to name address.

cifs troubleshooting domaininfo

1. Verify which authentication mode the restorer is in by entering at a command prompt:

   cifs show config

   
2. Users from the domain will be listed by their domain\username and their UID, and GID should be a value of 10000 or greater.

1. Once the status is confirmed to be enabled:

   cifs set authentication active-directory <realm> (I.P. address of KDC server)

   Example:

   cifs set authentication active-directory Olympus.local 10.24.20.78
   

2. After entering the set authentication active-directory command, you will be prompted for the admin username and password.  Note: User Name only is required, do not prefix with domain\. 
    
3. Output of the above command will state that the Data Domain system has joined the Active directory successfully
4. If the Data Domain system is already in Active-Directory Authentication mode, and you want to re-join AD, it can help to put the Restorer in Workgroup mode.  At the command prompt, enter workgroup mode by:

   cifs set authentication workgroup workgroup

5. Then issue the following commands:

   cifs disable
   cifs enable

    
6. Check the status of CIFS by entering:

   cifs status