check site ssl certificate dates

echo | openssl s_client -connect www.google.com:443 2>/dev/null |openssl x509 -dates -noout
remotely connects to an https site, fetches the ssl certificate and displays the valid dates for the cert

32
By: systemj
2009-02-05 15:21:50

What Others Think

This info is available in the much more intuitive (to me at least): curl -k https://www.google.com -v If you just want certificate details then: curl -k -I https://www.google.com -v 2>&1 | sed -ne '/Server certificate:/,/* SSL/ p' is still shorter
wam · 510 weeks and 4 days ago
bleh, the URL conversion used on this site is inaccurate. That should just be a URL in those commandlines I commented on above, not the mess of 'a href' linkage.
wam · 510 weeks and 4 days ago
I agree with wam, what he is recommending is more intuitive. I use the following based on wams suggestion. curl -vs $URL 2>&1 | grep [d]ate
zlemini · 462 weeks and 5 days ago

What do you think?

Any thoughts on this command? Does it work on your machine? Can you do the same thing with only 14 characters?

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