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Monitoring Your VPS with Grafana & Prometheus Print

  • monitoring, vps, Grafana, Prometheus, gratisvps
  • 13771

Monitoring your VPS is like giving it a set of health sensors — CPU, RAM, disk, network traffic, and more. With Prometheus and Grafana, you can see real-time stats and historical trends from a clean web interface.

Step 1: Prepare Your VPS

  1. Make sure your VPS is updated:

 
sudo apt update && sudo apt upgrade -y

  1. Install essential tools:

 
sudo apt install curl wget unzip -y

  1. Open firewall ports for Prometheus (9090) and Grafana (3000):

 
sudo ufw allow 9090 sudo ufw allow 3000 sudo ufw enable

Step 2: Install Prometheus

  1. Download Prometheus:

 
wget https://github.com/prometheus/prometheus/releases/download/v2.55.0/prometheus-2.55.0.linux-amd64.tar.gz tar xvf prometheus-2.55.0.linux-amd64.tar.gz cd prometheus-2.55.0.linux-amd64

  1. Start Prometheus:

 
./prometheus --config.file=prometheus.yml

  1. Access Prometheus in your browser:

 
http://YOUR_VPS_IP:9090

  1. Add a simple node exporter to collect system metrics:

 
sudo apt install prometheus-node-exporter -y sudo systemctl enable --now prometheus-node-exporter

Step 3: Install Grafana

  1. Add Grafana repository and install:

 
sudo apt install -y software-properties-common wget -q -O - https://packages.grafana.com/gpg.key | sudo apt-key add - echo "deb https://packages.grafana.com/oss/deb stable main" | sudo tee -a /etc/apt/sources.list.d/grafana.list sudo apt update sudo apt install grafana -y

  1. Start Grafana:

 
sudo systemctl enable --now grafana-server

  1. Access Grafana:

 
http://YOUR_VPS_IP:3000

  • Default login: admin/admin

  • You’ll be prompted to change your password.

Step 4: Connect Prometheus to Grafana

  1. In Grafana, go to Configuration → Data Sources → Add Data Source

  2. Choose Prometheus

  3. Set URL to:

 
http://localhost:9090

  1. Click Save & Test

Step 5: Create Dashboards

  1. Go to Create → Dashboard → Add Panel

  2. Use Prometheus queries, e.g.:

  • CPU Usage:

 
100 - (avg by(instance) (irate(node_cpu_seconds_total{mode="idle"}[5m])) * 100)

  • Memory Usage:

 
node_memory_MemAvailable_bytes / node_memory_MemTotal_bytes * 100

  • Disk Usage:

 
node_filesystem_avail_bytes / node_filesystem_size_bytes * 100

  1. Save dashboard and enjoy real-time monitoring of your VPS.

✅ Tips & Best Practices

  • Use alerts in Grafana to notify you when CPU, RAM, or disk usage is high.

  • Run Prometheus and Grafana behind a reverse proxy like Nginx for secure HTTPS access.

  • Combine node exporters with cAdvisor to monitor Docker containers if you run them.

  • Set retention rules in Prometheus to save historical data without overloading your VPS.

Your VPS now has a robust monitoring system. You can track performance trends, detect issues early, and optimize resource usage efficiently.

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