Technical notes on Linux, sysadmin, development and devops.
As of 15 January 2026 Let's Encrypt offers everyone certificates valid for just over six days and certificates for IP addresses. What they are, why they matter, and what changes for people running…
What the 3-2-1 rule means - three copies, two media, one offsite - why it lowers the risk of losing data, why restores must be tested, and what RPO and RTO really are, in plain words.
Amazon S3 Vectors is now generally available: AWS object storage can now store and query vectors for semantic search and RAG, aiming to cut cost and complexity compared with a dedicated vector…
The Model Context Protocol, the standard for connecting AI apps to external tools, has been donated to an independent foundation under the Linux Foundation. What it means and why it matters for…
Google has announced Gemini 3, its new flagship model. What actually improves in reasoning, coding, and multimodal work, and why it matters for anyone evaluating models for agents and automation.
A neutral guide to the criteria that matter when choosing a cloud provider: pricing model, hidden costs like data egress, managed versus self-managed services, where your data lives and GDPR,…