The SysOSX blog

Hands-on notes from years of running systems: Linux and Ubuntu Server administration, Azure, AWS and Google Cloud, and AI tooling from ComfyUI and Stable Diffusion to large language models. 157 articles, newest first — every post keeps its original address.

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The blog is the archive; the front door is now a set of free tools and live data. Run a website health check, inspect a certificate with the SSL checker, look up a domain expiry date, or compare model prices on the LLM pricing leaderboard and work out a monthly bill with the LLM API cost calculator.

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