Checks the expiration of an SSL certificatehttps://exchange.nagios.org/directory/Plugins/Network-Protocols/HTTP/check_ssl_certificate/details
This script checks the expiration of an SSL certificate.
This script will check SSL certificates to see if they have expired.
It is known to work with imap (w/starttls), imaps, pop (w/starttls),
pops, https, ldap (w/starttls) and ldaps. It requires the openssl
program (from the OpenSSL toolkit).