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Dns Server reaching out to 4.2.2.2

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Last Modified: 2012-05-11
I have a Domain Controller with dns role. I was looking at my top sessions on my firewall and noticed that server was top of the list. I do know it is a very "noisy" server but when I was looking at the session alot of the traffic is going to 4.2.2.2 public dns. Is this normal?
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Commented:
Here is a screenshot from my firewall which shows what I am seeing.
Dns-issues..JPG
Top Expert 2011
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Commented:
Thank you Vinchenzo I thought it might be a silly question I knew it was a public DNS. but it seemed like a lot of traffic I just wanted to make sure that it was "normal" :)
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