Earlier this week I began receiving alarms from my vCenter regarding a Certificate Status Alarm. I had not run into this particular error before and it took me a bit of investigation to get it solved.
An unusual certificate description
The alert kept repeating on an hourly interval and I didn’t have a clue what this certificate was for:
This email is to notify you that an alarm has been triggered in your vCenter: [Critical] Alarm alarm.CertificateStatusAlarm on Folder Datacenters because Certificate 'CN=Synology,OU=Synology,O=Synology,L=Unknown,ST=Unknown,C=Unknown' from 'SMS' expires on 2022-08-01 08:35:11.000. Alarm name alarm.CertificateStatusAlarm Description alarm.CertificateStatusAlarm Target Folder Datacenters Status Critical (previous status: Unset) Triggered time 09/15/2022 08:45:42 PM