17h ago · 14 min read · In Part 2, the TCP handshake cost was a fundamental transaction cost for every connection. In Part 3, HTTP underwent three structural shifts to overcome that specific cost. In Part 4, load balancers d
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2d ago · 17 min read · A real-world incident narrative + definitive best practices for CoreDNS at scale Prologue: The Calm Before the Storm The cluster was healthy. 312 pods spread across 24 nodes. CoreDNS two replicas, d
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5d ago · 11 min read · TL;DR: Every time you type google.com into your browser, a silent, multi-step lookup happens across a global hierarchy of servers — in milliseconds. This article breaks it down layer by layer using th
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May 2 · 4 min read · If you own a domain and send emails, you are a potential target for cybercriminals. Without DMARC, anyone on the internet can send an email pretending to be you. With Google and Yahoo now mandating authentication for bulk senders, DMARC is no longer ...
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