I recently built a stratum 1 time server for my network. I used this blog post as a recipe: https://blog.networkprofile.org/gps-backed-local-ntp-server/ It’s capable of working stand-alone without a network connection, some would say as an orphan, but having the GPS PPS signal makes it highly accurate within 200 or so nanoseconds and I’ve seen better on … Read more
I was recently notified of a data breach involving my Yahoo! mail account. I looked it up and sure enough, my problem for the hackers is the password had long been changed. But I did a search to see if I had any remaining accounts using the password and found my amateur radio call sign … Read more
This is a raw, working document intended to record how to set this up from scratch. Raspbian version: 2014-09-09-wheezy-raspbian.img 1. Setup the OS: Use caution on your target storage device: sudo dd bs=4M if=2014-09-09-wheezy-raspbian.img of=/dev/sdb 2. Boot the card and expand the file system, change password, configure ssh server, and set hostname… then reboot the … Read more
For my non-technical family and friends you can tune out as this is a techie computer geek post. Like many I run a linux machine as a traffic cop at the edge of my network. I prefer to run Secure Shell (SSH) server on its standard port so that I can easily connect to it … Read more
Displayed two TNC-Pi connected across a mesh network today at the PARC Hamfest. Sent ICMP Echo requests from n2xu-rPi-1 to n2xu-rPi-2 and received responses across the RF link. Was using 421.585 as a link frequency and had more separation between the systems than last week and less RF interference into the systems. Also, I picked … Read more