node_exporter VS smokeping_prober

$ wget https://github.com/prometheus/node_exporter/releases/download/v1.7.0/node_exporter-1.7.0.linux-amd64.tar.gz $ tar -xzvf node_exporter-1.7.0.linux-amd64.tar.gz

Node Exporter

The Prometheus node_exporter can provide this information, doesn't require root. You could run it as a systemd user unit if you don't have root.

I personally find it best to learn through experimentation. Start with reading a bit about Prometheus and Grafana through their docs, and then familiarise yourself with setting up a local Prometheus + Grafana instance either locally or with docker using docker-compose, along with something to generate /metrics endpoint for Prometheus to scrape from such as a custom Prometheus exporter in Python or using Node Exporter.

Your best bet might be to fork node_exporter to get you more verbose socket stats: https://github.com/prometheus/node_exporter/blob/master/collector/sockstat_linux.go

I use Grafana + Prometheus + Node Exporter.

Crazy idea, can't NX devices run Docker? I wonder if the node_exporter would work.

Kubernetes itself will not notify you, the way I've seen people do this, is to use something like kube-state-metrics or node_exporter, export that to Prometheus (or preferrably VictoriaMetrics because Prometheus is terrible IMO), and then setup alarms on that with alertmanager or equivalent, or just look at dashboards regularly with Grafana. Realistically I recommend only setting alerts on disk usage and application/database latency. CPU and memory utilization isn't a great metric to alert on a lot of the time.

You may setup node exporter and collect metrics with prometheus for example. Its not quite "simple" way, but still you may find it useful.

Check out the smokeping_prober. It generates high resolution histogram data that you can use to compare different paths.

I wrote this smokeping tool to monitor. I also use unpoller

I wrote this tool to monitor my ISP connectivity.

I am thinking this might be the exporter to use: https://github.com/SuperQ/smokeping_prober At the bottom of that page it says

I wrote a smokeping_prober for Prometheus.

For some stuff, I do end-to-end probin with a tool I wrote.

Smokeping Prober

I wrote a "better smokeping" tool that produces much more detailed data than IP SLA.

I wrote my own variation of smokeping. It currently only does ICMP and UDP probing, but I've thought about adding things like TCP, HTTP, DNS, etc.