As with most server applications, uptime is critical.
I am a small business owner who has up to 20 users accessing my database from the WAN outside of normal office hours.
I have had reliability issues with my ISP or power grid that has taken my server offline durning a period where I am not in front of my console.
I have investigated power back up options as well as a 4LTE modem that could get my server back up in a pinch.
The last piece of the puzzle is a notification service that will alert me when my server cannot be accessed from the wan.
I am currently investigating "Pingdom" as well as other similar services. What do you use to notify you of critical server down situations? Thank you.