About

Plain Systems is a personal notebook. I work on infrastructure — mostly Linux hosts, networking and the unglamorous parts of distributed systems — and I write down the things I had to learn the slow way.

The posts here are deliberately short. They are the notes I would want to find when I am debugging something at an inconvenient hour: what the counter means, which tool answers the question fastest, and where the obvious explanation is usually wrong.

What you'll find

• Packet-level debugging and TCP behaviour
• Name resolution, caching and failure modes
• Storage, backups and restore drills
• Operational habits that reduce surprise

Get in touch

Corrections and questions are welcome: hello@mt4bwu.work.gd. There is an RSS feed if you prefer to follow along that way.