Insights from the World’s Largest Cyber Defence Exercise
• 6 min read
On 22 April 2023, the Sweden-Iceland team led by Patrik Fältström, together with Brynja Huld Óskarsdóttir from Iceland, emerged victorious ahead of 23 other national teams in the prestigious cyber defence exercise Locked Shields (18-21 April 2023).
“Interesting and timely since, in the last two weeks, at least five domains of important public services in France have been down. At least four of them had poor DNS hosting (only two unicast authoritative name servers, sometimes in the same physical location). My report (in French): https://www.bortzmeyer.org/service-public-impots-dns.html”
Thanks Stéphane. As you say in your report, when it comes to DNS you can’t put your eggs in one basket. Redundancy (multiple authoritative anycast servers across multiple geographic regions) is crucial. Unless you want some nasty surprises!
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