The private key file located in /usr/local/nukona/certs/configurator/sign.key does not match the SSL certificate found in /usr/local/nukona/certs/nginx.crt. This most commonly is caused by changing the sign.crt file while not also updating the nginx.crt file.
If you have updated the SSL certificate on a Mobility 5.3 server, you probably encounteredfollowing error message when attempting to start the mm-nginx service:
This is shown because there is a new SSL certificate as 5.3 and later now uses NGINX in conjunction with Apache for processing web requests. If the sign.crt file located in /usr/local/nukona/certs/configurator/ is the updated certificate, run the following commands, as root: