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Zeige Liste der Zertifikate mit SNI (openssl)

openssl s_client -showcerts -connect gmail.google.com:443 -servername gmail.com
...
Certificate chain
 0 s:/C=US/ST=California/L=Mountain View/O=Google Inc/CN=gmail.com
   i:/C=US/O=Google Inc/CN=Google Internet Authority G2
...
 1 s:/C=US/O=Google Inc/CN=Google Internet Authority G2
   i:/C=US/O=GeoTrust Inc./CN=GeoTrust Global CA
...
 2 s:/C=US/O=GeoTrust Inc./CN=GeoTrust Global CA
   i:/C=US/O=Equifax/OU=Equifax Secure Certificate Authority
Server certificate
...
subject=/C=US/ST=California/L=Mountain View/O=Google Inc/CN=gmail.com
issuer=/C=US/O=Google Inc/CN=Google Internet Authority G2
...