Monitoring Linux Server Performance with Prometheus

In this episode, Lucas walks through setting up Prometheus version 2.53 and Node Exporter on a freshly provisioned Ubuntu 24.04 server. He demonstrates how to install the binaries from the official tarball, configure the prometheus.yml to scrape localhost:9100 every 15 seconds, and verify metric ingestion using the expression browser. Luna asks about the pull model versus push-based tools, and Lucas highlights the value of historical data for troubleshooting night-time anomalies. They also touch on writing a simple alerting rule for CPU usage above 80 percent. The episode closes with a reflection on why open-source monitoring beats SSH-based diagnosis for multi-server environments.

#Linux #Sysadmin #Prometheus #NodeExporter #Monitoring #DevOps #ServerAdmin #OpenSource #Metrics #Performance #Alerting #CPU #Memory #Disk #Network #Fexingo #TechnologyPodcast #LinuxServer

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