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How to measure DNS latency in Linux with tcpdump

14th August 2023 by Adrian Giacometti

In this case I was trying to identify which DNS resolver would be the best for my infrastructe in remote sites. Usually configuring 8.8.8.8 would be ok, yes is simple, but there are a couple of things going on in the background that deserves some checking if you want to achieve best performance. Which was …

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