Running a reliable and secure hosting environment is a top priority for hosting providers, and CloudLinux is one of the most effective tools to help you achieve that. Designed specifically for shared hosting, CloudLinux enhances server performance, security, and stability by isolating users and managing resource usage effectively.
In this guide, we’ll walk you through setting up CloudLinux and dive into its key features, including CageFS, PHP Selector, and MySQL Governor, that make it the go-to operating system for hosting providers.
Key CloudLinux Features and How to Configure Them
1. CageFS: User Account Isolation
What is CageFS?
CageFS is a virtualized file system that isolates each user on the server, preventing them from seeing or accessing files outside their own environment.
Why It Matters:
- Prevents privilege escalation attacks.
- Blocks users from viewing server configuration files or other users' data.
How to Set Up CageFS:
- Install CageFS using the following command:
yum install cagefs
- Enable CageFS:
cagefsctl --enable
- Add all users to CageFS:
cagefsctl --force-update
Pro Tip: Use the CageFS Management interface in WHM to manage individual users.
2. PHP Selector: Flexible PHP Versions
What is PHP Selector?
PHP Selector allows users to choose the PHP version and extensions they need for their applications.
How to Set Up PHP Selector:
- Install the required PHP versions:
yum groupinstall alt-php
- Configure PHP Selector via WHM under CloudLinux Manager > PHP Selector.
3. MySQL Governor: Resource Management for Databases
What is MySQL Governor?
MySQL Governor monitors and limits MySQL resource usage on a per-account basis, preventing a single user from monopolizing database resources.
How to Set Up MySQL Governor:
- Install MySQL Governor:
yum install governor-mysql
- Enable it for your database server:
governor-mysql --install
- Monitor resource usage with:
dbtop
Conclusion
CloudLinux is a game-changer for hosting providers, offering unparalleled stability, security, and resource management features. By isolating user accounts with CageFS, providing flexible PHP environments with PHP Selector, and managing database resources with MySQL Governor, CloudLinux ensures that your hosting environment remains secure and efficient.
Whether you’re running a small shared hosting server or managing hundreds of accounts, CloudLinux provides the tools you need to deliver a reliable hosting experience to your customers.
Ready to take your hosting to the next level? Start your CloudLinux setup today!