Configuring NTLM Authentication
Using NTLM authentication, a user who has logged into a Windows domain does not have to re-authenticate to log in to a server. A Primary Domain Controller is a Microsoft Windows server responsible for handling all accounts in a domain. To use NTLM authentication, you must explicitly specify the Primary Domain Controller in the NTLM Authentication Scheme.
To specify a Primary Domain Controller for NTLM authentication
2. As system administrator, click Administration Dashboard > Configuration > NTLM Authentication Administration.
3. In the Domain Controller Name field of the Properties page, type the hostname of the Primary Domain Controller and click Submit.