Is there a simple monitoring system behind the 16.04 server (for a teapot)?

Question

Monitoring

Good, tell me the monitoring system behind the server.
I must say right away that this is it:
https://habr.com/ru/post/331016/
https://serveradmin.ru/ustanovka-i-nastrojka-zabbi...




I read it and tried to understand it. I understand that most likely my knowledge in Lunix is ​​not enough to install all this and it all worked correctly.

Therefore, the question is, maybe you know a simple "monitoring system behind the server \ PC"
From the minimum requirements, these are: -
Stability of the Internet (in case of a break, a notification is required (messengers \ mail \ sms - it doesn't matter) -
Monitoring of CPU load, RAM and their temperature.

System with which it will be possible to view on the Web or on Windows, but definitely not with Lunix. Tell me about

similar systems \ programs please.
If instructions for dummies are attached, it will be great.

Answer 1

Zabbix.

Answer 2

More options.
https://habr.com/en/company/ruvds/blog/507660/
https://adminunix.ru/monitoring-sistemy-s-glances/