The author shares a story about dealing with issues on an older Raspberry Pi used for remote logins. The problem stemmed from the SD card experiencing issues, causing time synchronization problems, affecting services like chrony and WireGuard. The author deduced that the out-of-sync clock was due to systemd’s method of adjusting time. To resolve the issue, the author added secondary and tertiary resolvers and configured chrony to use a nearby host as a peer source. Overall, the experience highlighted the importance of proper time synchronization on such devices, emphasizing that Raspberry Pis are only cheap until they require significant time investment to troubleshoot.
https://rachelbythebay.com/w/2024/04/10/rtc/