I want to administrate Samba 4 (Active Directory) via RSAT (Remote Server Administration Tools) using Windows 7. I have installed the RSAT and opened the "Active Directory Computers and Users" tool in Windows 7, but occurs this error:

Naming information cannot be locate because:

The specified domain either does not exist or could not be contacted.

Contact your system administrator to verify that your domain is properly configured and is currently online.

I am logged in domain using a Domain Administrator User.

When I run dcdiag to debug Domain Controller, I get this error:

{COMPUTERNAME} is not a directory server.

It was not possible locate local server

Can anyone help me?

2 Answers 2


check DNS setting on your win7 machine, check that you could reach at least one domain controller by dns, ip. I think RSAT failed to contact domain controllers because of DNS issues.

Also try use NETBIOS domain name: domain, and FQDN of the domain controllers.

  • The logged Domain Administrator User in Windows 7 gets IP by DHCP, and the DNS and GATEWAY assigned are the same. I can ping DNS, GATEWAY, as well FQDN (it is the GATEWAY/SERVER name, and it is the same SERVER that assigns DNS).
    – Marco
    Commented May 13, 2015 at 21:44
  • Just to make clear that this solution does not worked. Still awaiting other solutions.
    – Marco
    Commented May 18, 2015 at 21:17

An old question, but here is the answer:

Really don't know why my RSAT didn't want to connect on Samba-AD-DC automatically although I was logged as Samba Administrator on my PC, tried so many things but unsuccessful.

Solution was: Open "Active Directory Computers and Users", ignore error and in Action tab choose "Change Domain Controller", enter IP address of your domain controller and that's it.

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