Open dns Killed AD

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24th November 2007, 08:36 AM
nicholab

Open dns Killed AD

Hi I got a question I put open dns servers into the forward look up zone and AD died. What did I do wrong?

Impressive in your 1st week!!
24th November 2007, 11:47 AM
ChrisH

Re: Open dns Killed AD

You must have crippled the DNS SRV records and such in some way.
24th November 2007, 01:57 PM
nicholab

Re: Open dns Killed AD

I don't know how as I did exactly what it says on the opendns website.
24th November 2007, 03:23 PM
mattx

Re: Open dns Killed AD

Quote:

I don't know how as I did exactly what it says on the opendns website.

On a live network ? Hmmmmm
24th November 2007, 04:46 PM
nicholab

Re: Open dns Killed AD

Yes but my on site dns should know everything it should and any other requests should go off site.

client> My DNS> Open DNS = Stops working
client> My DNS> ISP dns = works
24th November 2007, 04:54 PM
mattx

Re: Open dns Killed AD

Quote:

and any other requests should go off site.

That should be set in the 'forwarders' section on your DNS server.
24th November 2007, 05:24 PM
nicholab

Re: Open dns Killed AD

That what I did I put it in the forwards section of the dns and some how that killed it.
24th November 2007, 05:33 PM
mattx

Re: Open dns Killed AD

What did you put in the forwarders section ? That should be your gateway or box that points to the outside world...
24th November 2007, 05:44 PM
webman

Re: Open dns Killed AD

What do you mean by 'killed' AD? What exactly doesn't work?
24th November 2007, 06:43 PM
nicholab

Re: Open dns Killed AD

NO logon, server not Pinging, connection to shares lost.
24th November 2007, 07:03 PM
mattx

Re: Open dns Killed AD

Whats in the DNS event logs ?
24th November 2007, 08:11 PM
webman

Re: Open dns Killed AD

Is DHCP still handing out the correct DNS IP (your DNS server) to the clients? (Check with ipconfig /all on clients).
24th November 2007, 10:27 PM
eejit

Re: Open dns Killed AD

Quote:

Originally Posted by nicholab

That what I did I put it in the forwards section of the dns and some how that killed it.

That's exactly right. That's what we do and it works fine. Like webman, I'd be looking at DHCP - what are your scope options?
25th November 2007, 01:30 AM
davidu

Re: Open dns Killed AD

Shoot us an email at contact <at> opendns.com so we can 1: figure it out and get it working for you and 2: see if there is anything we need to do to fix our modify our instructions for some edge cases or different configuration.

We know a bunch of people who use AD w/ OpenDNS without any issue so I'd love to figure out how to work with you to make it work with your setup.

I'm not our AD expert though, so I'll definitely have to route this through contact <at> opendns.com.

Happy Thanksgiving. :D

Thanks,
David Ulevitch (from OpenDNS)
25th November 2007, 03:17 AM
Geoff

Re: Open dns Killed AD

Have you checked if your ISP blocks access to any DNS server(s) other than it's own. I know that's the case with our LEA WAN.