How to check the Usage Meter SSL certificate expiration date

Products

• VMware Usage Meter

Issue/Introduction

After deployed Usage Meter, the appliance generates a self-signed SSL certificate. 
If the certificate expired, the Usage Meter Web interface would have been inaccessible.
So the Certificate must be renewed, before the expiration date.

Environment

Usage Meter 9.0.x

Resolution

Log in to the Usage Meter appliance as usagemeter via SSH or a local terminal, and then run the following command:

usagemeter@usagemeter [ ~ ]$ openssl s_client -connect <Usage Meter IP>:443 2>/dev/null | openssl x509 -noout -dates

Ex)
usagemeter@usagemeter [ ~ ]$ openssl s_client -connect **.**.**.**:443 2>/dev/null | openssl x509 -noout -dates
notBefore=Sep  8 06:03:11 2025 GMT
notAfter=Sep  8 06:03:11 2027 GMT  <===!!!

Additional Information

Before the expiration date, the Certificate must renewed referring to the below document.

* VCF Usage Meter Certificate Management
https://techdocs.broadcom.com/us/en/vmware-cis/vcf/usage-meter/9-0/vcf-usage-meter-deployment-and-administration-guide/certificate-management.html