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WINS? DNS? I just don't know

By Aaron_Wurthmann ·
Info:
I have three NT Servers.
One, the PDC is serving DHCP to almost everyone. Two, the BDC is the Exchange server. The third is a stand alone server with WINS.

All servers and above resources are configured correctly. Meaning the each have WINS set to the correct server and DHCP is also aware of the location of the WINS server. (the WINS server has static entries for all other servers and as well for DNS. For that matter so does DHCP).

DNS is running on a UNIX machine and appears to have the correct entries for my servers. An NSLOOKUP verifies this information. (I don't have control of this server)

Problem:
At random, (or as far as I can tell) "two" my bdc/exchange server is not pingable via hostname. The ping for some reasonor another goes to the outside interface of my firewall. There are no entries in my route table that would send it there, and an nslookup still states the correct address.

What is going on and how can I stop it?

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WINS? DNS? I just don't know

by tysonmathews In reply to WINS? DNS? I just don't k ...

First what is the IP of your BDC/Exchange server? it may be an External IP? or simply not finding it there. Do you get a response from the IP when it is not pingable via host name? Be sure you have added the servers to the host table ip assigning. what are you pinging it with? you may need to have a LMHOST or NWHOST file on the machine that your pinging from to resolve the netbios. next time try an C:>NBTSTAT -a bdc/exchange (of course the netbios name or IP) Prefer host name though here)

And then seee if it connect since this command uses netbios and not TCP/IP.

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WINS? DNS? I just don't know

by Aaron_Wurthmann In reply to WINS? DNS? I just don't k ...

No it isn't external. What is your second question? Is in pingable via hostname NO! IP address of course. (if it weren't I would have said so.. right) Hmm.. your last idea is good. I did that then an arp -a.. looks okay. But doesn't solve the problem.
Thank you for your answer.

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WINS? DNS? I just don't know

by jun1cez1 In reply to WINS? DNS? I just don't k ...

If you cannot ping the BDC/Exchange Server by its hostname/netbios name, how about with its IP address. If not, you may need to reconfigure its IP address entry in the controlpanel\network\protocol\tcpip properties and enter the correct IP addressesfor both DNS and WINS. You may put a check in the "enable DNS for Windows resolution" and "enable LMHOSTS Lookup". By the way, dont forget the bottom that says scope ID if you have one.
A hint on how to configure DNS to use WINS:
go to
Start>Programs>Administration Tools>DNS Manager
Right click the Zone then Properties>
Click the WINS lookup Tab then check Use WINS Resolution,
In the WINS server box, type the address of the WINS Server then click OK

See if it would help

Jun

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WINS? DNS? I just don't know

by Aaron_Wurthmann In reply to WINS? DNS? I just don't k ...

Okay... if I couldn't ping it via the IP address.. I WOULD HAVE SAID SO!!! There I feel better now. Ummm did you read the question. My DNS server is on UNIX. Thank you for your answer.

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WINS? DNS? I just don't know

by nold In reply to WINS? DNS? I just don't k ...

have you tried using Trace Route command--TRACERT in NT? This will tell you where the packets are going. Packets go out on the Gateway, if they share thesame gateway, they must be able to see each other. NSLOOKUP for all i know, checks only if theDNS Server is OK, but it doesn't suggest that connections to other servers is also OK.

To be sure, ping all servers from ur DNS server, using ip address. If servers can ping back to ur DNS, then u have a DNS problem (internally), if it doesn't work, then it's the routing, again check your GATEWAY service.

Good luck.

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WINS? DNS? I just don't know

by Aaron_Wurthmann In reply to WINS? DNS? I just don't k ...

Of course I did. Stil hits the outside interface to my firewall.. (which of course doesn't except icmp conections) AND ONCE AGAIN.. you didn't read the quesion.. in it I said that I can do a NSLOOK up, and that all is fine. Thank you for your answer.

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6 total posts (Page 1 of 1)  

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