Viewing Certificates with OpenSSL: Step-by-Step Guide
PEM File - What is a .pem file and how do I open it?
What Is a PEM File?
What Is a PEM File?
Convert a certificate from the PFX format to the PEM format
How to view SSL certificate (PEM file) using openssl ? - Oracle Trainings for Apps & Fusion DBA
OpenSSL : How to create a Certificate .crt and check expiry dates | University of South Wales: Cyber University of the year: Four years running: 2019, 2020, 2021, 2022