![]() ![]() Maybe this is because in order to provide a service like nameserver failover, it means a company has to admit to its customers the reality that their own nameservers may at some point, fail. We call it Proactive Nameservers, and we’re the only company in the world doing it for some reason. There is a silver bullet for avoiding your own downtime when your DNS provider blows up and it is to use multiple DNS providers (a point we’ve belaboured many times in the past is that every DNS provider is a logical SPoF unto itself).Īt easyDNS we experienced so much pain from this reality that we created a system to automate flipping DNS providers at the first sign of trouble.Everybody blows up, every DNS provider in existence will experience downtime. This is inevitable and unavoidable and entirely excusable.This is why whenever one of the largest DNS providers in the world blows themselves up, or gets DDoSed off of the air we are quick to point out two things: I think somewhere in my book I wrote “DNS providers have a near-pathological aversion to SPOFs” (Single Point of Failures). ![]() Fortunately easyDNS was not impacted by the outage (I didn’t even notice it, tbh), and I only heard about it later in the day when I checked in on social media at some point and saw all this chatter about “half the internet blowing up”.ĮasyDNS was unaffected because while we do use Cloudflare to soak up large DDoS attacks against our nameservers, we don’t use them across all of our nameservers. We’re familiar with Cloudflare’s DDoS service for DNS providers, because we use it ourselves. At least one other commercial DNS provider who uses Cloudflare in front of their own nameservers for DDoS mitigation also went off the air. This affected their DNS service, and of course, as everybody knows, when your DNS is gone, so are you. On Friday a large chunk of the internet went off the air when Cloudflare apparently fat-fingered a routing update and sent all of their global traffic to a single POP, vaporizing it almost instantly.
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