I am using a simple internal Active Directory Domain Services (AD DS) domain environment (with about 4 VM's total in it, 2 of them are domain controllers) that forward requests outside the domain to Google DNS servers (8.8.8.8 and 8.8.4.4). Sometimes my nslookup's on www.dropbox.com on my Azure VM's will not resolve (can't open the page, etc.). This problem is very random and can sometimes last for 30 minutes or so and then it magically is all working again out of nowhere. However, not on an Azure VM all is great and I am able to resolve www.dropbox.com. Is there something I am missing on an Azure VM that would need to be in place for reliable DNS lookups to the internet? I do know at one point there was an Azure DNS server that could be used but not sure if that is the case anymore or not. Thanks in advance!
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