Just wanted to celebrate that I have been able to keep my GPS based time servers running for over a year without interruption. Granted I have moved to pool server to a VPS using these Pi’s as the NTP source to bypass the AT&T connection throttling but it’s great to see long uptime and stability:
That is correct. And compiled the time components from source, GPSD, NTPsec, and use Log2Ram to prevent any updates to the SD card. This is as close to an appliance I can get a Pi into. From a firewall perspective everything is locked down except for local access for NTP and the VPS server at my hosting provider for NTP. The VPS provides time to the public.