TIL you can show only the SAN list of a cert via openssl: echo| openssl s_client -connect www.bbc.co.uk:443 -showcerts 2>/dev/null | openssl x509 -noout -ext "subjectAltName"
I'd always parsed that out manually..🤦🏻♂️. #OpenSSL#TLS#InfoSec#DevOps#SysEng