Web server monitoring. How do you do it?

Question

System administration

Good evening. I would like to know your experience in monitoring web servers. What software, what price category, what features do you use?
About my experience: where there is a project park with several servers, I installed Zabbix on a separate machine and did not know grief.
In the case when one project but wanted to see the current load on the server and plus (which is important) receive notifications by mail about when the server had a service failure, it stopped pinging, load average jumped - used New Relic.
To my regret, when I logged into it yesterday, I discovered that email notifications became available only for the paid version, where the price is clearly not suitable for one small project with one machine.
Maybe someone has a software in mind that would allow you to
monitor
send alerts
would not require installation on a separate machine?

Answer 1

Through REST, you throw off all exceptions to the admin panel , and there - the steering wheel: what to just put in the database (to look from the admin panel), and what to pro-SMS additionally.
Well, you can always write your own test for services and logs , which will pull the same cron and if the test fails, pull the REST admin panel indicating: what exactly happened and whose field of responsibility (yours or the hoster).
Cron - must not crash! )

Answer 2

Experience: own openvpn server in the cloud, servers are connected to it - we get a private network, our own Zabbix is ​​connected there in the cloud. There are agents on the servers and we monitor everything that is needed. Scales easily and quickly. Expenses: if, for example, you take hosting on cloudsigma, then it’s not at all expensive.

Answer 3

https://prometheus.io/

Answer 4

DataDog is NewRelic's main competitor

Answer 5

well, you can try for example monit( https://habrahabr.ru/post/73506/) , Munin, or bash+cron))

Answer 6

https://www.elastic.co/products/logstash + https://www.elastic.co/products/kibana

Answer 7

If it is possible to put it on a separate machine, then maybe this will help: www.spiceworks.com

Answer 8

and Zabbix, what does not suit you? He can do it all