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DNS server is not working..

by jlcerezo / December 1, 2009 1:33 AM PST

My ISP changed the secondary & tertiary DNS IP addresses from, to, respectively in their system. Now our DNS server is not working. My question is, what will be the next step to solve this problem? I have a cisco router, do I have to change the IP in this router?

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Tried These Troubleshooting Steps Yet?
by Grif Thomas Forum moderator / December 1, 2009 7:16 AM PST

My question is about your status in this issue... Do you manage the server? What error messages are you seeing to notify you of the problem? Or...Are you a homeowner with a computer which can't connect? If so, I'll guess you had a static IP address and needed to change it? Yes, No? If it was static, can you change it to automatic detection in the network adapater's properties?

Which operating system are you using?

Tried flushing DNS?

Hope this helps and let us know more.

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I will try your advise
by jlcerezo / December 1, 2009 8:56 AM PST

Hi Grif, I manage the server. This is the error message after I type my address from OpenDNS:

Nameserver trace for

* Looking for who is responsible for and followed

Nameservers for

* returned (NORECORDS)
* returned (SERVFAIL)

I'm using a Linux. A cisco router -> firewall server -> DNS server

I will try later flushing the DNS. As of now, I will take a look the link that you sent. Thanks for the input. I will post the outcome.

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by jlcerezo / December 1, 2009 8:59 AM PST
In reply to: I will try your advise

It is static.

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A Couple Of Other Thoughts..
by Grif Thomas Forum moderator / December 1, 2009 11:43 PM PST
In reply to: I will try your advise

Try reinitializing the router.. Turn OFF the computer, turn OFF the router, then turn OFF the modem (if they are separate modem/router). Wait ten minutes, then turn ON the modem, wait two minutes for it to reinitialize, then turn ON the router (if it's separate), wait two minutes, then turn ON the computer.

Of course, you might consider using OpenDNS which works for some..

Hope this helps.


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Ok Grif
by jlcerezo / December 2, 2009 12:02 AM PST

Ok Grif, I will do that. Also, I will try to post some message from utility like nslookup, traceroute. For further analysis.

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by jlcerezo / December 2, 2009 1:22 AM PST
In reply to: Ok Grif

Hi Grif, I tried your advise, but the problem is still here. What will I do next?

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Please Answer Questions From My First Response Here
by Grif Thomas Forum moderator / December 2, 2009 6:57 AM PST
In reply to: Result..

What exactly is your situation?


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Problem Solved
by jlcerezo / December 5, 2009 2:34 PM PST

Sorry, for being late.. the problem has been solved.. A support remotely reconfigured the two servers.. Thanks for your time, Grif.. Have to study that part, so next time, I know how to do it.

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