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    Installing Netdata on a CentOS 7 Server

    Netdata is a powerful, open-source monitoring solution designed to deliver real-time insights into the health and performance of your server. Whether you’re managing a single machine or a distributed fleet, Netdata offers detailed visualization of system metrics through a web-based dashboard. This guide walks you through the step-by-step process of installing and configuring Netdata on a CentOS 7 server. By the end of this tutorial, you’ll have a fully operational monitoring system that lets you track CPU usage, memory consumption, network activity, disk I/O, and more — all in real time and with minimal system overhead. No matter which hosting provider you use, these instructions will help you gain complete visibility into your server’s behavior.

    Requirements

    Ensure the following conditions are met before continuing:

    • A newly created CentOS 7 server instance is ready.
    • All system packages have been updated.
    • You are logged in through SSH as a non-root user who has sudo access.
    • The IP address 192.0.2.123 serves only as a placeholder.

    Step 1: Installing Required Packages

    Install the following packages to prepare for Netdata installation:

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    $ sudo yum install zlib-devel libuuid-devel libmnl-devel gcc make git autoconf autogen automake pkgconfig
$ sudo yum install curl jq nodejs

    Step 2: Installing Netdata

    Use the official script to install Netdata:

    • Ensure your shell is running Bash:
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    $ bash
    • Run the installation script from GitHub:
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    $ bash <(curl -Ss https://my-netdata.io/kickstart.sh)

    If installation finishes without issues, the Netdata service will be launched.

    Step 3: Updating Firewall Settings

    To access Netdata’s web dashboard, allow traffic through port 19999:

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    $ sudo firewall-cmd --permanent --zone=public --add-port=19999/tcp
$ sudo firewall-cmd --reload

    Step 4: Accessing the Monitoring Dashboard

    To verify that Netdata is running, open a browser and go to:

    http://192.0.2.123:19999

    Step 5: Configuring with Systemd

    To manage Netdata using systemd, follow these steps:

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    $ sudo yum install psmisc
$ sudo killall netdata
$ sudo cp ~/netdata/system/netdata.service /etc/systemd/system/
$ sudo systemctl daemon-reload
$ sudo systemctl start netdata.service
$ sudo systemctl enable netdata.service

    To make configuration changes, open the main configuration file:

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    $ sudo vi /etc/netdata/netdata.conf

    The current settings are also accessible through:

    http://192.0.2.123:19999/netdata.conf

    Conclusion

    With Netdata installed and configured on your CentOS 7 server, you now have an effective tool to monitor system performance in real time. The web-based interface provides immediate insights into server health, and integration with systemd allows for streamlined service management. You can now customize the setup further through the configuration file to suit your specific monitoring requirements.

    Source: vultr.com

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