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Observability & SRE
Metrics, logs, tracing, error budgets, and reliability engineering culture.
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Security Telemetry on a Budget: Building a Practical Elastic Baseline for a Growing Product Team
3+ hour, 1+ min ago (989+ words) Security Telemetry on a Budget How a growing product team turned the Elastic stack it... Tagged with security, kubernetes, devsecops, elasticsearch....
How to Monitor Cron Jobs with a Simple HTTP Health Check
3+ hour, 27+ min ago (409+ words) Cron jobs are great for automating repetitive tasks, but there is one problem: What happens when the job stops running? A cron entry can exist for months without anyone noticing that the script has started failing. For example, you might…...
Why AI Observability Is Becoming a Core Enterprise Technology Capability
2+ day, 18+ hour ago (644+ words) Sunday, 20 September 2026 Enterprise artificial intelligence is moving into a different phase. The question is no longer only whether a model can produce a useful answer in a controlled test. Increasingly, the question is whether an AI-enabled system can be understood,…...
Port 6443 in the Wild: Measuring Public Kubernetes API Endpoint Exposure
4+ hour, 20+ min ago (526+ words) This article answers that question with a ZoomEye measurement and then separates what the number proves from what it does not. The measured result is an exposure count, not a vulnerability count. A host that answers on TCP port 6443 has…...
[Lab Notes] Kubernetes the Hard Way, For Real This Time (Step 07)
5+ hour, 47+ min ago (107+ words) Continuing my Kubernetes the Hard Way homelab build. Steps 01-06 are already done, this covers step 07. This step sets up the etcd cluster. From what I understand, etcd is basically Kubernetes' database, it's where the "state" of the whole cluster gets…...
EULYNX-Based Object Controller and CTC System in the Digirail Project
2+ day, 17+ hour ago (629+ words) The Digirail project introduces the first commercial ERTMS/ETCS Level 2 track section in Finland on the Tampere–Rauma/Pori line. The project is part of Finland’s national railway renewal programme, where signalling and train control are being modernised through a…...
"10 hours" and "around two weeks" are not the same kind of number
8+ hour, 14+ min ago (416+ words) In September 2026, Palo Alto Networks Unit 42 published a case involving an AI-assisted intrusion into an enterprise network. The article includes figures like "less than 10 hours," "more than 50 MITRE ATT&CK techniques," and "around two weeks" for what a human operator…...
Incident Context: tracing production failures without guessing
8+ hour, 4+ min ago (200+ words) This is a submission for the Sanity Challenge, Path One: Ship an Agent That Queries Real Content.... Tagged with devchallenge, sanitychallenge, sanity, ai....
How I Debugged a KV-Cache Offloading Bug in vLLM
8+ hour, 4+ min ago (370+ words) LLM inference performance is often limited by GPU memory rather than raw compute. One of the problems I worked on in vLLM involved KV-cache offloading for models using mixed KV-cache groups. The failure was subtle: the existing logic assumed a…...
CitrusFi: A subscription audit that actually understands billing cycles
8+ hour, 34+ min ago (23+ words) CitrusFi is a small subscription tracking app that answers a question most trackers get wrong: "how... Tagged with devchallenge, sanitychallenge, sanity, ai....