Thoughts about Software, Networking, and Life
macOS Monterey ships with a tool that measures the responsiveness of your network connection. It saturates the network with traffic for 20 seconds, then measures the rate of short transactions …
Using Apple’s RPM tool Read More[From the Archives of Amusing Technology…] Back in the ’90s, Dave Fisher and I created NameD•tective, a Macintosh control panel that gave any Mac on the Dartmouth network a static …
NameD•Tective — mDNS over AppleTalk Read MoreLast month, Comcast released a paper Improving Latency with Active Queue Management (AQM) During COVID-19 that shows that their PIE AQM dramatically decreases lag/latency (by a factor of 10X — …
Comcast modems decrease bufferbloat Read MoreAt a recent videoconference, I advocated strongly for a consumer-facing measurement of latency/responsiveness. I had not planned to speak, so I gave off-the-cuff comments. This is an organized explanation of …
Toward a Consumer Responsiveness Metric Read MoreThe link below goes to the current Internet Draft for Responsiveness under Working Conditions. It is available at: https://datatracker.ietf.org/doc/draft-cpaasch-ippm-responsiveness/
Internet Draft: Responsiveness under Working Conditions Read MoreMy friends frequently ask, “Why is my network so slow?” And often, the answer is “latency” or the screwy term, “Bufferbloat” – the “undesirable latency caused when a router buffers …
Best Bufferbloat Analogy – Ever Read MoreThe NH Stone Wall Mapper project uses Lidar data to display small variations in ground elevation. A UNH project built this map to identify stone walls in the state. This …
Astonishing Lidar View of NH Read MoreA WireGuard VPN provides a fast, secure tunnel between endpoints. It uses public/private key pairs to encrypt the data. If you have several clients, you have to enter their public …
WireGuard Vanity Keys Read MoreA WireGuard VPN provides a fast, secure tunnel between endpoints. A macOS GUI client is available from the App Store It works great. But its documentation is minimal. Even though …
WireGuard GUI on macOS Read MoreA friend (thanks, Ted!) directed me to a nice science-based article that assigns some probabilities of risks of transmitting a disease like coronavirus. The author highlights two major scenarios: Warm …
Transmission of Covid-19 Read More