Field notes
Write-ups from actual jobs.
No gated downloads and no product pitches. These exist because I had to work the problem out and writing it down was the cheapest way to remember.
Sunday at 78 percent →
Nine timed reads of one campus's upload line across two services. The peak came at the service close, not at peak attendance, and it left 9.7 Mbps of headroom on a 45 Mbps circuit.
The access point that was dead for eleven days →
The hardware was fine and the cable was fine. What failed was the record of which port it was on, and the fix took ninety seconds once that was reconstructed.
Air-gapped AI, and who actually needs it →
Who benefits from running models on hardware they control, who does not, and the tradeoffs in both directions.
CMMC 2.0 from the field →
What a small defense contractor, or a firm supplying one, has to do in practice. The burden is documentation and evidence far more than new technology.
The three earlier pieces are published on buteranet.com, the founder's site, and open there. New notes are published here.