How to Install and Use Netdata for Real‑Time System Monitoring

Introduction

Netdata is a high‑performance, modular metric collection engine that runs on Linux distributions (Ubuntu, Debian, CentOS, etc.), container platforms (Kubernetes, Docker) and other operating systems such as FreeBSD and macOS. It operates without requiring root privileges and provides real‑time visualisation and troubleshooting.

Key Features

Low‑resource, high‑frequency data collection written in C.

Zero disk I/O for metrics (logging optional and can be disabled).

No root requirement for normal operation.

Embedded web server serving interactive dashboards.

Plug‑and‑play installation with minimal configuration.

Dynamic, interactive charts.

Configurable alarm system based on metric thresholds.

Repository and Documentation

Source code: https://github.com/netdata/netdata

Official documentation: https://learn.netdata.cloud/

How Netdata Works

Netdata is a lock‑free, highly modular engine designed for concurrent metric collection and processing.

Installation on CentOS

# Install dependencies
yum install -y autoconf automake curl gcc git libmnl-devel libuuid-devel lm_sensors make MySQL-python nc pkgconfig python python-psycopg2 PyYAML zlib-devel

# Clone the repository
git clone https://github.com/netdata/netdata.git --depth=1

# Run the installer script
./netdata-installer.sh

# Open port 19999 (example using firewalld)
systemctl stop firewalld.service
firewall-cmd --zone=public --add-port=19999/tcp --permanent
systemctl restart firewalld.service

Installation on Ubuntu

# Install dependencies
sudo apt install -y zlib1g-dev gcc make git autoconf autogen automake pkg-config uuid-dev

# Clone the repository
git clone https://github.com/firehol/netdata.git --depth=1
cd netdata

# Run the installer script
sudo ./netdata-installer.sh

# Allow traffic on port 19999
sudo ufw allow 19999/tcp

Accessing Netdata

After installation, open a web browser and navigate to http://<em>your-server-ip</em>:19999 to view the real‑time monitoring dashboard.