For anyone interested. If you are running Nagios/Sensu, then I highly suggest using one of the ssl check plugins [1, 2, 3], which will give you a heads up about

For anyone interested. If you are running Nagios/Sensu, then I highly suggest using one of the ssl check plugins [1, 2, 3], which will give you a heads up about these types of these before they happen. Then the onus is not on you to check some calendar/spreadsheet for expiring certs. Same goes for domains [4, 5]. When you are looking after tons of services, ssl certs, and domains, it is inevitable that things will slip through the cracks unless you have some type of monitoring keeping tabs on it for you. [1] http://exchange.nagios.org/directory/Plugins/Network-Protocols/HTTP/check_ssl_certificate/details http://exchange.nagios.org/directory/Plugins/Network-Protoco... [2] http://exchange.nagios.org/directory/Plugins/Network-Protocols/HTTP/check_ssl_cert/details http://exchange.nagios.org/directory/Plugins/Network-Protoco... [3] https://github.com/sensu/sensu-community-plugins/tree/master/plugins/ssl https://github.com/sensu/sensu-community-plugins/tree/master... [4] http://exchange.nagios.org/directory/Plugins/Internet-Domains-and-WHOIS/check_domain/details http://exchange.nagios.org/directory/Plugins/Internet-Domain... [5] https://github.com/sensu/sensu-community-plugins/tree/master/plugins/whois https://github.com/sensu/sensu-community-plugins/tree/master...