Featured article
A Reproducible Namespace Routing Lab
A contained veth experiment with explicit starting conditions, route checks and cleanup.
Field notes & practice
Articles
Practical guides and engineering studies, written to make the assumptions and trade-offs visible.
Read the article
Latest
5 articlesHealth Check Failure Drills
Test what a probe causes when a process stalls, a dependency fails or a service warms up.
5 min readRead article
An Observability Budget for a Small Host
Estimate the cost of signals, bound log growth and verify that an alert answers a real question.
5 min readRead article
Running Containers on Small Hosts
Separate compilation from serving and review memory, filesystem, capabilities and rollback.
5 min readRead article
Bounded Telemetry Buffering at the Edge
Define capacity, durable receipt and reconnect behavior before a link goes away.
5 min readRead article
A Background Worker Recovery Playbook
Follow an item through lease, side effect, commit and acknowledgement, then test the gaps.
5 min readRead article
From the wider community
Engineering Feed
Publications from DEV Community. Titles and summaries are attributed to their original authors; the links open the original articles.
A dead Kubernetes node is detected in 3 seconds and keeps receiving traffic for 13
The 40-second node-monitor-grace-period everyone quotes is not what happens. I hard-killed a node ten times and measured where the failures actually live, then got the fix wrong and had to say so.
Trust the Tailnet, Not the Network: Automating Wi-Fi Hardening with NetworkManager Dispatchers
Treat every Wi-Fi network as hostile: a NetworkManager dispatcher that pins a locked-down firewalld zone and forces a Tailscale exit node on connect.
The Linux Troubleshooting Ladder: What to Check Before Making Things Worse
Stop blindly restarting services, killing processes, and rebooting nodes. Here is the...
Why your retries need jitter: the thundering herd, explained
Picture this. It is 2:14 in the morning and your checkout service starts returning errors. Every...
Why CISA gave agencies three days to patch CVE-2026-7273 in Zyxel GS1900 switches
Why CISA gave agencies three days to patch CVE-2026-7273 in Zyxel GS1900 switches CISA...
An SBOM is a tool output, not a fact about your software
Two papers appeared on arXiv in September that describe, from opposite ends, a pipeline control I...