dns
2 articles
A 6 A.M. DNS Disaster — When an Ubuntu Auto-Update Blew Up the Entire Sandbox
At 6 a.m., Ubuntu auto-updated, restarted systemd-resolved, overwrote resolv.conf, and erased a gVisor sandbox’s DNS configuration. Bun/axios then mislabeled SERVFAIL as ECONNRESET—turning six correct behaviors into one nondeterministic Cowork outage.
The Journey of a URL — What Actually Happens Between Pressing Enter and Seeing a Page
You type a URL and press Enter every day, but what actually happens in between? This post uses gu-log as a real-world case study to walk you through 7 floors — from DNS to Service Worker — covering the full journey of a URL.