Technical notes on Linux, sysadmin, development and devops.
What LVM is, the layer that sits between disks and data: physical volume, volume group and logical volume explained with an analogy, and the benefits over classic partitions.
Cloudflare proposes a third option beyond blocking or allowing AI crawlers: charging them for access to your content using the HTTP 402 status code. How it works and why it matters.
What a bastion host (or jump host) is: the single controlled entry point into a private network, why it shrinks the attack surface, and where it fits in an SSH architecture.
Google has made GPU support on Cloud Run generally available, with scale-to-zero and per-second billing. What it means to serve AI models without keeping a cluster running, and what to weigh.
Google has released Gemini CLI, an open source AI agent that lives in the terminal. What it does, how the license works, the free limits, and the cautions for people who run servers and write code.
Cloudflare has opened the public beta of Containers: you can run containerised workloads next to Workers, orchestrated from your code, without managing clusters and regions. Here's what it is, what…