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I have set up a sub domain in plesk and it has added a a-name record in plesk but I get the 'oops link is broken' page in chrome.

I have my domain name registered with provider A and my server with provider B. Provider A(where plesk is located) has an A name for my subdomain. I'm not sure that matters though because provider A do not host the domain.

Should I set up a sub.domain.com A name with provider B? Could this be the reason why the subdomain isn't working?

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3 Answers 3

DNS records will mostly be available about 2 days (globally) after creating it so @alfred that could be the reason you see "non-authoritative" response.

Per your last comment, you said "I just added sub.domain.com IPADDRESS". Wait for around 2 days and check again. If you are in the same country where your DNS resides, 1 day may be the most that you'll wait. But globally, it takes 2 days for the DNS to be replicated.

Hope that helps. Ismael

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Two days?! Your caching servers are in sad shape. A new domain should show up almost everywhere within an hour or so. I reliably see ~30 minutes over here. –  Bill Weiss Mar 24 '11 at 12:22
    
@Bill, I said 2 days because that's the global average for full propagation of the DNS and I know that you know it too :) –  icasimpan Mar 25 '11 at 2:27

Do a nslookup to narrow down the problem.

nslookup sub.domain.com

If it doesn't resolve I would check the DNS entry. If it does resolve then the problem could be with your webserver not configured for that sub.domain.

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I get "returned a non-authoritative response". So no, the NSLOOKUP returns nothing. –  alfred Mar 24 '11 at 5:33
    
I just added sub.domain.com IPADDRESS. I don't think this is the right way to add that record though? –  alfred Mar 24 '11 at 5:36
    
For authoritative response use dig sub.example.com @DNSforDomain –  Ency Mar 24 '11 at 11:56

What are the nameservers for domain.com? If you want to see if the zone file has been updated properly you can try nslookup sub.domain.com ns1.provider-a.com which should give you the IP you've configured the sub-domain for in Plesk.

If it is then it's just a waiting game (or you can modify your hosts file) otherwise you'll need to update the domain name's zone file.

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