If you have encrypted your website, API, Telnet server, or other service with TLS (SSL), good for you! Now, do you know when those certificates will expire? If they expire without renewal, your service could become unavailable without warning. In the past, to find expiration dates for digital certificates on IBM i, you’d either have to look in the Digital Certificate Manager (DCM), call the Retrieve Certificate Information (QYCURTVCI, QycuRetrieveCertificateInfo) API, or keep extremely good notes! CERTIFICATE_INFO, an IBM i service recently delivered by IBM, solves all this. This SQL table function, documented here, returns a result table that contains…