Error Autopsy
The Sidecar That Bound the App's Port Before the App Could
The pod crash looped with EADDRINUSE on its own port at boot, because the sidecar started faster and bound the port first, and the app, losing the race it…
Security
The Egress Rule That Let the Backup Phone Home
The backup job needed one destination, the egress allowlist gained a wildcard to make a Tuesday work, and the exfiltration path stood open for a month…
Deep Dive
How a Single Lost Packet Becomes Your p99
A dropped segment is not retried immediately. The retransmission timer backs off exponentially, so one loss adds a stall measured in round trips squared…
Bug Hunt
The 301 That Cached Itself and Became a Loop
A misconfiguration emitted a permanent redirect from a URL to the same URL for twenty minutes, and the browser cached the 301, so the loop kept spinning for…
Security
The Session Cookie Without SameSite That Rode Along Cross Site
A forged form on an attacker's page submitted a request to the real site, and the browser attached the victim's session cookie, because a cookie with no…
Error Autopsy
The Cert Rotated at Midnight and the Pool Kept the Old Handshake
The rotation succeeded, the new certificate was valid and live, and half the fleet still failed at the exact minute of rotation.
Tooling
Reading a HAR File Like a Flight Recorder
The browser recorded the entire incident, every request, every wait, every byte, before anyone knew there was one.
DevOps
The Rollback That the CDN Kept Serving for an Hour
The deploy was reverted in four minutes, and the incident lasted an hour, because the edge cache held the broken build and kept serving it to everyone the…
Bug Hunt
The Agent Retry Loop That Rate Limited Its Own Fix
The autonomous debugger saw timeouts and did the helpful thing, faster and harder, until the API returned 429s to everyone and the original bug was buried…
Security
The Reboot Loop Everybody Assumed Was a Bad Patch
Patched NetScaler appliances kept rebooting and the obvious conclusion was that the emergency update had broken them.
Shopify
Storefront API 429s on a Store With Almost No Traffic
The headless store made a handful of requests per minute and still hit throttling, because the Storefront API throttles by computed cost, not by request…
DevOps
The Ingress Annotation That Silently Changed Your Timeout
The app's timeouts were tested and correct, and the 504s kept coming, because the ingress controller has its own defaults for body size, buffering and read…