Re: Clients unable to locate the DC

Mr. Williams,

This is an Active Directory problem that is a direct result of my lack of
knowledge of DNS. If I have posted in the wrong news group I apologize.

I have built a test network and implemented Win2003svr with 2 clients.

The DNS server is running and built as a default (I have not added anything
special)

When the clients are only pointed to this DNS server I get -
The query was for the SRV record for _ldap._tcp.dc._msdcs.domainname can't
be found. -

When the NSLookup is performed I recieve DNS request timed out ****can't
find server name for address 192XXX.

I am behind a NAT device. I can only surf from the clients or server when a
recursivedns server is used.

My domain is registered and when I ping my domain name outside of the NAT
device it resolves.

I have had to use a host file on clients in order to resolve the names
behind the NAT device.

All firewalls are turned on the clients and server. Server is not running
DCHP only DNS. Wins server is enabled but I don't need it, turned off Wins
and Netbios on the clients.

Been fighting this for a while and am stymied.

Is there something special I need to do to the DNS to get it solve this?

Do I need to subscribe to a secondary DNS service (my ISP will not allow
forwarding requests from another DNS server)

Thanks

Rob

"Paul Williams [MVP]" wrote:

> Sounds like either you are pointing to the wrong DNS server, or the DNS
> server you are pointing to (assuming correct) is broken. You're going to
> have to do a little leg work on this one. First thing to do is verify the
> following:
>
> -- DNS Domain Name is the same as the AD DNS Domain Name (if it isn't have a
> look at the article on dis-joint DNS on my website).
> -- DNS zone is configured to accept dynamic updates.
> -- DHCP *Client* service is configured to start automatically and is running
> (on the DC)
> -- All domain members and DCs point to internal DNS servers (usually the
> DCs)
> -- The following test, when run from either a client or DC, succeeds and
> lists your DCs:
>
> nslookup -type=srv _ldap._tcp.dc._msdcs.domain-name.com
>
> Where domain-name.com is the DNS name of your domain.
>
> --
> Paul Williams
> Microsoft MVP - Windows Server - Directory Services
> http://www.msresource.net | http://forums.msresource.net
>
>
>
.

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