Verifying SSL certs after Heartbleed

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After the recent heartbleed storm that hit our beloved wide web, a lot of people and companies have revocated and then reissued new SSL certificates.

In order to verify that the certs have been correctly setup, here’s a simple command that I used to check the date of the certs:

$ openssl s_client -connect google.com:443 < /dev/null 2>/dev/null \
     | openssl x509 -startdate -noout

This commands outputs today:

notBefore=Apr 9 12:05:08 2014 GMT

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