Getting a dns server of on client workstations

Posted on 2012-08-31
Last Modified: 2012-09-12
I have a new DC with DNS and DHCP roles
DHCP seems to be working since it hands out appropriate address.  DNS also appears to work since the server can get on the net.

In the router I point local dns to which is the DC.
All the workstations have a DNS server in ipconfig of though.  WTH?
If I change the dns server in the properties of the Ethernet adapter things seem to work fine

I have some errors in dcdiag

 Testing server: Default-First-Site-Name\DC
    Starting test: Advertising
       ......................... DC passed test Advertising
    Starting test: FrsEvent
       There are warning or error events within the last 24 hours after the
       SYSVOL has been shared.  Failing SYSVOL replication problems may cause
       Group Policy problems.
       ......................... DC passed test FrsEvent
    Starting test: DFSREvent

     Starting test: SystemLog
        A warning event occurred.  EventID: 0x00000420
           Time Generated: 08/31/2012   04:14:49
           Event String:
           The DHCP service has detected that it is running on a DC and has no
redentials configured for use with Dynamic DNS registrations initiated by the D
CP service.   This is not a recommended security configuration.  Credentials fo
 Dynamic DNS registrations may be configured using the command line "netsh dhcp
server set dnscredentials" or via the DHCP Administrative tool.
Question by:ccampbell15
    LVL 11

    Expert Comment

    LVL 2

    Author Comment

    Tried that and it does not make a difference.  It is DHCP though.  When I kill that role on the server and use the router the workstations get the ip of teh router for DNS and they can all get online.  I guess I don't fully understand how DHCP assigns the dns server ip to the workstations.

    The login creds I used for dhcp are the adminstrator
    LVL 2

    Author Comment

    Further update

    I just tore down the Server and reloaded windows.  The get the exact same thing so I'm doing something wrong but can't see it.  DHCP is working since it hands out ip's and DNS works since I can get online with the workstations as long as I set the DNS server ip in the adpater.

    I just don't understand why the local workstations are getting an IP of
    DCdiag is clean
    LVL 77

    Accepted Solution

    check that your dns server is not using but a proper static ip address
    LVL 2

    Author Comment

    Minor Lee Campbell proble,
    I used the wizrd to set it up and one of the windows asks the ip of the dns serever which is by default.  I looked at it quickly and assumed it would be OK since that would work fine on the server.  However, it also ends up being the IP of the DNS server that gets ported out to the workstations.  Duhh!

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