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Introduction
Config Server Firewall (CSF) is a popular and powerful firewall configuration script designed to provide better security for Linux servers. This tutorial will guide you through the process of installing and configuring CSF on Rocky Linux 9.
Prerequisites
Before you begin, ensure you have:
A Rocky Linux 9 server
SSH access to the server (optional)
Root or sudo privileges
Step 1: Install CSF
Install CSF using the following commands:
sudo dnf install -y wget perl unzip
wget https://download.configserver.com/csf.tgz
sudo tar -xzf csf.tgz
cd csf
sudo sh install.sh
Step 2: Configure CSF
Edit the CSF configuration file to customize the settings:
sudo nano /etc/csf/csf.conf
Make any necessary changes to the configuration file, such as opening specific ports or enabling certain features.
Step 3: Start CSF
Start the CSF firewall:
sudo csf -r
Step 4: Enable CSF at Boot
To ensure CSF starts automatically at boot, enable the CSF service:
sudo systemctl enable csf
Step 5: Check CSF Status
Check the status of CSF to ensure it is running:
Visual overview: Linux VPS & VPS Windows Setup Guide | NetCloud24 and Configure Config Server Firewall (CSF) on Rocky Linux 9
sudo csf -s
Conclusion
Congratulations! You have successfully installed and configured Config Server Firewall (CSF) on Rocky Linux 9. You can now use CSF to enhance the security of your server.
Łukasz Bodziony is the CEO and founder of NETCLOUD24, a global VPS hosting brand proudly originating from Poland. With extensive experience in cloud computing, virtualization, and server management, he delivers high-performance Windows VPS and Remote Desktop Services (RDS) solutions to clients across Europe, North America, and beyond.
His expertise covers a wide range of technologies, including Microsoft Azure, Proxmox VE, Amazon Web Services (AWS), and numerous other virtualization and cloud platforms.
Beyond running his hosting business, Łukasz also provides professional paid server configuration and optimization services for companies and individuals. Outside of work, he is dedicated to caring for his children and building a secure future for them.
If you are interested in working with him or need expert assistance with your hosting, cloud environment, or server setup, feel free to reach out via Windows VPS.
Linux VPS & VPS Windows Setup Guide | NetCloud24 and Configure Config Server Firewall (CSF) on Rocky Linux 9
