Objective: Set-up crontab to automatically renew the SSL certificate
Time: ~10 minutes
This tutorial is specifically for this set-up. In general, it can be helpful for setting up your crontab.
This will set up the Ubuntu instance to automatically update the SSL certificate using crontab. Crontab is a file that store the jobs you want the system to execute at a specific time. First, SSH into your instance. To change the crontab, type in:
sudo crontab -e
You can choose the nano editor, probably the easiest. Enter a line like this. Hit Control + x to save. Save to the default file name given.