I followed this post to configure my DNS
https://community.sophos.com/products/unified-threat-management/astaroorg/f/53/t/32566
From time to time I have a problem "connection to server timed out" when try to access many websites (www.msftncsi.com/ncsi.txt, lci.tf1.fr, blogs.msdn.com, www.cnet.com,....).
How does UTM resolve DNS names (Steps)?
I have an Internal DC DNS, what should be the optimized configuration to avoid the timeout problem?
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