Virtualmin is a powerful web hosting control panel built on Webmin, designed for managing multiple domains, websites, databases, email accounts, and server resources. It provides an intuitive GUI-based alternative to cPanel, supporting Apache/Nginx, MySQL/MariaDB, PHP, Postfix, Dovecot, and other essential hosting components. Virtualmin is available in both free (GPL) and premium versions, making it a flexible solution for individuals and businesses.
Important Considerations Before Installation
Before installing Virtualmin, keep these key points in mind:
Fresh OS Installation Required – Virtualmin is designed for a clean server. Installing it on a pre-configured system may cause conflicts.
Supported Operating Systems – Compatible with AlmaLinux 9, Debian 12, and Ubuntu 24.04
System Resources – At least 1GB RAM (2GB+ recommended) and sufficient disk space for hosting websites.
1. Installation
1.1. Update Your System
Run the following command to update all packages:
AlmaLinux
sudo dnf update -y
Debian / Ubuntu
sudo apt update && sudo apt upgrade -y
1.2. Download Virtualmin Install Script
Use wget to fetch the install script:
wget https://software.virtualmin.com/gpl/scripts/install.sh
1.3. Run the Installation Script
Make the script executable and start the installation:
chmod +x install.sh
sudo ./install.sh
Type 'y' and press Enter to proceed when prompted.
The script will automatically install Webmin, Virtualmin, Apache/Nginx, MariaDB/MySQL, PHP, Postfix, Dovecot, and other necessary components.
After installation you should see following message:
2. Accessing Virtualmin
2.1. Access Virtualmin through the browser
Once the installation is complete, access Virtualmin via your browser:
If you see a security warning, accept the self-signed certificate to proceed.
Username: root
Password: Your root password
3. Configuring Virtualmin
3.1. Complete Post-Installation Wizard
Set the database configuration (MySQL/MariaDB);
Choose PHP versions and memory limits;
Enable or disable features based on your needs.
4. Secure Virtualmin
4.1. Install "Let's Encrypt"
If you have a domain pointing to your server, enable SSL:
Go to Webmin > Webmin Configuration > SSL Encryption.
Click Let's Encrypt and request an SSL certificate.
4.2. Configure Firewall
Ensure these ports are open:
sudo firewall-cmd --permanent --add-service=http
sudo firewall-cmd --permanent --add-service=https
sudo firewall-cmd --permanent --add-port=10000/tcp
sudo firewall-cmd --reload
Set Up Automatic Updates (Optional Step)
Enable automatic security updates:
AlmaLinuxsudo dnf install dnf-automatic -y
sudo systemctl enable --now dnf-automatic
Debian/Ubuntu
sudo apt install unattended-upgrades -y
sudo dpkg-reconfigure unattended-upgrades
Virtualmin is now installed and ready to manage your websites, email, databases, and more.