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DNS Root Hints

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Last Modified: 2012-05-08
I have been perfomring a health check on my 2003 Active Directory and found an error running DCDIAG /test:DNS whereby a root hint is stated as invalid. I have conditional forwarding set up for three domains configured with 'Do Not Use Recursion for this Domain' which go to DNS servers in our parent company. 'All other DNS Domains' is set with No IP address as we have no resolution via the internet. However, we have one Root Hint in the root hint list: a.root-servers.net [198.41.0.4] which is obviously inaccessible (hence the error above) as we have no access out to the Internet. Should I remove this root hint completely, or will this have a negative effect on name resolution at all?
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