How to Install or Uninstall CloudLinux from cPanel (Updated Guide)

Why CloudLinux with cPanel Matters

CloudLinux revolutionizes shared hosting environments by isolating user accounts and preventing resource abuse. When paired with UnderHost’s cPanel hosting solutions, you gain:

• Stability: Prevents “noisy neighbor” effects
• Security: Kernel-level isolation between accounts
• Resource control: CPU, RAM, and I/O limits per user

Prerequisites for CloudLinux Installation

Before proceeding, ensure your UnderHost server meets these requirements:

• Active root access to the server
• cPanel/WHM installed (UnderHost cPanel servers meet this automatically)
• Minimum 1GB free disk space
• Working yum package manager

Note: UnderHost’s UnderManagement team can handle this for you if preferred.

Installing CloudLinux on cPanel: Detailed Steps

Step 1: Prepare Your Server

Connect via SSH to your UnderHost server and run:

# Update all packages
yum update -y

# Create full backup (critical!)
/scripts/pkgacct --allusers

UnderHost users can utilize our automated backup solutions for added safety.

Step 2: Execute the Conversion Script

# Download and run the CloudLinux conversion tool
wget https://repo.cloudlinux.com/cloudlinux/sources/cln/cldeploy
sh cldeploy -k <your_license_key>

UnderHost provides CloudLinux licenses with our managed business hosting plans.

Step 3: Verify Installation

# Check OS version
cat /etc/redhat-release

# Verify CageFS status
cagefsctl --status

Uninstalling CloudLinux from cPanel

To revert to standard CentOS/RHEL:

Step 1: Disable CloudLinux Components

# Disable CageFS
cagefsctl --disable-all

# Remove LVE manager
yum remove lvemanager -y

Step 2: Execute Reversion Script

# Run the conversion script
sh /usr/share/cloudlinux/revert/revert.sh

For complex environments, consider UnderHost’s server management services to handle the transition.

Optimizing CloudLinux Performance

After installation, configure these settings in WHM:

• Adjust LVE limits via CloudLinux Manager in WHM
• Enable CageFS for all users
• Configure PHP Selector for user flexibility

UnderHost’s Cloud VPS solutions come pre-optimized for CloudLinux environments.