I want something that has a WebUI, can show in a graph like the CPU and RAM graph for this day and maybe some days before. Also I would like to view what was running at any given time (I mean from 2-3 days before to now).
Is there any (FOSS) software that does that?
Thanks.
Can’t really go wrong with the old school nagios+thruk. The learning curve is a tad steep but it teaches you a lot of things about your systems.
I think prometheus + grafana might be what you are looking for. In combination with loki grafana can also be used for viewing log messages.
Do both have to run on the host machine or can a remote machine execute the probes (over ssh or something).
Absolutely this, nothing else is required. Well, maybe alertmanager if you want to receive alerts
I like munin, it’s very limited, a bit hard to configure and doesn’t have many features but uses almost no resources
I would use OpenTelemetry, Prometheus, and Grafana…
Which parts are OpenTelemetry for? Is Prometheus Agent, Prometheus Server and Grafana not enough?
I like it because I use it for MELT in general. Prometheus generally does metrics and if you want to include logs, traces and events, it becomes more cumbersome. With the Otel collector, I can just update my collector configuration to point to the various services.
I’m not saying OP can’t use what you suggested, just stating what I would use.
Zabbix?
