In a shared hosting environment, one vulnerable or overactive account can affect every other website on the same server — unless the server is running CloudLinux.

This powerful operating system is built specifically for web hosting providers, delivering advanced account isolation, resource control, and real-time security tools that go beyond what standard Linux distributions offer.

Let’s explore how CloudLinux helps protect your server, your customers, and your business — all while keeping things fast and stable.

🔒 1. CageFS: Isolating Every Account

One of CloudLinux’s most powerful features is CageFS, a virtualized file system that “cages” each hosting account into its own private environment.

What this means:

• Users cannot see or access files from other accounts

• Even if a site is hacked, the attacker cannot traverse the system

• Sensitive server files are hidden from the user

✅ This prevents privilege escalation and common shared hosting attacks.

⚙️ 2. LVE (Lightweight Virtual Environment): Fair Resource Allocation

With standard Linux hosting, a single account using too much CPU or RAM can slow down the entire server.

CloudLinux solves this using LVE, which limits:

• CPU usage

• Memory (RAM)

• Disk I/O

• Number of processes

• Entry processes (PHP executions)

If an account exceeds its limits, it’s throttled, not suspended — and other users remain unaffected.

✅ This ensures server-wide performance and uptime, even under stress.

🔍 3. MySQL Governor: Control Heavy Database Usage

Slow websites are often caused by overloaded MySQL.

CloudLinux’s MySQL Governor tracks and limits database usage per user:

• Detects abusive or inefficient queries

• Prevents a single site from overloading the database

• Keeps database performance stable for all users

✅ Especially useful for WordPress, Joomla, or WooCommerce-heavy servers.

🔁 4. SecureLinks: Block Symlink Attacks

Symlink attacks are a known vulnerability in traditional shared hosting setups.

CloudLinux’s SecureLinks feature blocks these by:

• Preventing users from creating malicious symbolic links

• Making sure only authorized users can access specific files

✅ This adds an extra layer of filesystem-level protection.

🧪 5. Hardened PHP and KernelCare

CloudLinux includes:

• Hardened PHP – Secure, supported versions of legacy PHP with vulnerabilities patched

• KernelCare – Apply kernel-level security updates without rebooting the server

✅ This keeps servers safe and up to date — without downtime.

🧰 Bonus: PHP Selector and Custom Resource Limits

Each user can choose:

• Their preferred PHP version (from 5.6 to 8.x)

• Specific PHP extensions

• Custom limits (max input time, memory limit, etc.)

✅ No conflicts between websites, even on the same server.

📈 The Result: A More Stable, Secure, and Scalable Server

🛒 Get CloudLinux Licenses from PLiKhost

Need to harden your own VPS or dedicated server?

PLiKhost offers CloudLinux licenses with:

✅ Competitive pricing
✅ Instant activation
✅ Support for cPanel, DirectAdmin, and more
✅ Easy add-on for existing PLiKhost hosting or server clients

👉 Order your license today

✅ Final Thoughts

Whether you’re running a single website or hosting hundreds of clients, CloudLinux brings the peace of mind and control you need.

• No more noisy neighbors

• No more surprise slowdowns

• No more compromised accounts infecting others

🟢 PLiKhost uses CloudLinux on all shared and reseller hosting — and if you’re managing your own server, we make it easy to get licensed and started.

Have questions or want help installing CloudLinux? Contact our team anytime.