What is the software for monitoring the status (operability) of various systems?

Question

Monitoring

You need a program or, perhaps, an online service where you can add a list of systems (it can be anything - servers, services, the current software build, some specific functions) and you can track whether they are in working condition or not. Tracking is either automatic (such as ping), or manually changed.
I don’t know what this type of program is called, and somehow I can’t google it.

Answer 1

Maybe zabbix ?

Answer 2

That's what they call monitoring systems. By the amount of functionality and complexity of setup: freeping, munin, zabbix, nagios. If you need something more than ping, I recommend munin

Answer 3

newrelic.com

Answer 4

And which of these programs are no longer focused on automatic checking (sometimes it is very difficult to automatically determine that the system is not working, if, for example, it has an error that blocks all functionality, but the system itself has not “fallen”, it’s easier to set the inoperability flag manually), but rather on the work of teams dependent on these systems? For example, if a certain system is not working, then you need to see a list of people using this system who are now unable to do their job.