Max Doubin
Cybersecurity student in Las Vegas. This site has 307 articles on enterprise networking, servers, storage and security, plus browser tools, exam study material and an openly licensed hardware dataset.
Start here
- Field Notes, 307 articles on infrastructure and security.
- Topics, the same archive grouped by subject.
- Browser tools, subnet and VLSM calculators, packet header references, hash identification and more.
- Certification study, mapped to the published Security+, Network+ and CCNA exam objectives.
- Open rack hardware dataset, power, heat, rack units and port counts as JSON and CSV under CC BY 4.0.
- Hyperscale, a datacenter simulator running on real power and cooling maths.
- National Cyber League guides for all nine scored categories.
- Practice, incident scenarios, labs, packet captures and capture the flag challenges in the browser.