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Home cloud, edge and everything in between administration and orchestration How to verify the remaining validity of your letsencrypt certificates
How to verify the remaining validity of your letsencrypt certificates

Cloud Insidr 2017-04-30 Leave a Comment

How to verify the remaining validity of your letsencrypt certificates

In order to figure out how many days your letsencrypt certificates have left, you could check an online services such as:

https://www.ssllabs.com/ssltest/index.html

However, that won’t work for a mail server that’s not also running a web server using the same certificate.

In this case, your best bet is to check the certificate file directly using the openssl command as follows:

openssl x509 -noout -dates -in /etc/letsencrypt/live/smtp.yourmailserverdomainname.com/cert.pem

Filed Under: administration and orchestration, cloud, edge and everything in between, cybersecurity and cyber warfare, encryption, Linux, mail servers Tagged With: letsencrypt, OpenSSL

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