Replacing the TLS certificate on a Synology NAS via the command line
Yesterday was the day that the TLS certificate of my Synology NAS expired. And since I have no monitoring to alert me, I only found out today. The bad news: HSTS was also enabled so my browser did not want to connect, even though I told it to ignore the invalid certificate. The good news: the SSH service was enabled. This allowed me to fix this situation via the command line interface (CLI).