This script creates an NGINX webserver with a PHP backend.
Run the script the first time to install the necessary applications.
After that, running the script will return:
Would you like to?
1) Add a new server monitor
2) Remove a server monitor
3) Show server status
4) Edit notification scripts
5) Choose notification times
6) Uninstall Server Monitor
7) Exit
Adding a new server will supply you with a key to curl every minute (using cron) from another server. The server that uses this script will then monitor to check the curl has been made.