dns

How To Test DANE on a Domain

Here’s a simple way to check if DANE is properly setup on a site: # echo -n | openssl s_client -connect spdysync.com:443 | sed -ne '/-BEGIN CERTIFICATE-/,/-END CERTIFICATE-/p' | openssl x509 -noout -fingerprint -sha256 | tr -d : depth=2 /C=IL/O=StartCom Ltd./OU=Secure Digital Certificate…