Understanding Service Health Checks
Separate liveness, readiness, and dependency health so checks help operators instead of amplifying failures.
7 min readRead article
Research & architecture
Articles
Practical guides and engineering studies, written to make the assumptions and trade-offs visible.
Matching articles
1 articleFrom 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 Linux Kernel CVE Just Dropped. Now What? A Practical Patching Playbook for Small Teams
Tuần này trên Hacker News có thread "Several vulnerabilities have been discovered in the Linux...
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...