Creating a CSR with a SAN - openssl
Certs aren't valid without SubjectAltName (SANs) now, openssl makes it hard
"It works in my environment."
Certs aren't valid without SubjectAltName (SANs) now, openssl makes it hard
Installing and using certbot from LestEncrypt to get a free HTTPS cert
Trusting a CA-signed certificate from a companies firewall on Ubuntu