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Learn how to successfully install and configure CentOS on your Dedicated Server for optimal performance and security → Find out more
10 November 20262 min read0 Views0 helpful
Introduction
Below, we’ll explain step by step how to install and configure the CentOS operating system on your Dedicated Server. Follow these instructions carefully to set up the operating system successfully and make the most of it.
Info
This guide is based on CentOS 8.3. The installation process may vary slightly for older or newer versions.
Warning
CentOS Linux 8 (including 8.3) was officially discontinued (End of Life) by Red Hat/CentOS on 2021-12-31. No security updates have been available for this operating system since then. For production environments, we recommend a currently supported alternative from our ISO catalog, such as CentOS Stream 9 or AlmaLinux.
FAQ
Frequently asked questions
CentOS 8.3.
No. CentOS Linux 8 (including 8.3) was officially discontinued (End of Life) on 2021-12-31 and no longer receives security updates. Alternatives such as CentOS Stream 9 or AlmaLinux are recommended.
Keyboard, time and date, root password, installation destination (SSD selection), and network and hostname.
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Dedicated Server
Preparation
Before installing and configuring an operating system, you first need to mount the appropriate ISO image. You can do this in the Installation tab of the ZapX panel, either with an ISO from our catalog or with your own ISO via URL.
If you’re not familiar with mounting an ISO file, we recommend our Initial Setup or Custom ISO guide.
Installation
Once the ISO has loaded successfully, the server will be in the setup process.
Keyboard
Choose your preferred keyboard layout
Time & Date
Select your time zone
Root Password
Set a password for your root account. You can choose any password, but remember to use a strong one and store it securely.
Installation Destination
Select the SSD on which CentOS should be installed
Network & Hostname
Due to an incompatibility issue, the network could not be configured yet. We’ll do this at the end.
Once you’ve configured all the settings as you’d like, click “Begin Installation”.
After the installation is complete, remove the ISO file from your server and click “Reboot System”.
Configuration
Network
Next, we’ll configure the network device. To do this, we need to update a few files. Please mount this ISO file as a virtual media device on your server through your iLO/IPMI interface (accessible via the Remote Management tab for your Dedicated Server in the ZapX panel).
Once the ISO file has been mounted successfully, we need to mount it in the system so we can access it.
Code
mount /dev/sr0 /mnt
The ISO file is now mounted at /mnt.
Code
rpm -i /mnt/be2net.rpm
Next, install the update package.
Code
modprobe be2net
In this step, we’ll apply the update. This may take a few seconds.
You can now check whether a network device named eno1 exists by running ip a s. If it does, please restart your system.
After the restart, continue by configuring the network device.
Code
nano /etc/sysconfig/network-scripts/ifcfg-eno1
Please enter the following information in the file:
Code
DEVICE=eno1
BOOTPROTO=dhcp
ONBOOT=yes
Exit Nano with CTRL+X and confirm with Y.
Now start the network device with ifup eno1.
Info
Your Dedicated Server should now have a working internet connection.
Conclusion
Congratulations, you’ve successfully installed CentOS on your Dedicated Server. If you have any questions or need help, our support team is available every day! 🙂
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