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Clearing cache for a single record in AD DNS server

We have a public website and it changed to new IP address. And A DNS record for the website is located at DNS1.

So user's path for DNS name resolution is;
User laptop------DNS2-------DNS1

DNS1 is configured as a forwarder in DNS2.

I just requested to change A record to DNS1 admin and he changed. I can resolve to new IP;
c:>nslookup website.com DNS1

But if I try to resolve with DNS2, it still returns the old IP address. It seems as DNS2 is not getting the change yet, TTL issue in cache.

Is there a way to delete only a single record for website.com?? It's AD integrated DNS server, I went to DNS concole> Advanced View> Cache Lookup, there was no record for website.com. I want to delete the record in DNS 2 and gets new DNS record from DNS1

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Robert

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Sungpill Han

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Cache lookup is empty, no cache.

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Robert

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Sungpill Han

ASKER

If I do nslookup website.com DNS1
It shows new IP.
If I do nslookup website.com DNS2
It still shows old IP.

I already did flushdns on client .

Maybe I am missing something, I will check again.

Thank you.

Sungpill Han

ASKER

The DNS record shows correctly now after TTL expired. I still didn't find where the cached record is pulled out from. It surely looks like DNS2, but couldn't have more time to investigate because the old record TTL expired.
Sometimes, good thing prevents me to learn ;)