A small notebook for practical systems work.

999602 Field Notes is a collection of concise references about Linux, networks, and operating small services. The emphasis is on explicit configuration, careful verification, and recoverable changes.

Editorial approach

Articles separate observations from assumptions and focus on checks that readers can reproduce. Examples use reserved example domains and do not publish production credentials or private infrastructure details.

Privacy

This site has no advertising, third-party analytics, contact forms, or user accounts. Pages and images are served as static files. The web server may retain error logs for operational troubleshooting.