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.

Need expert assistance with CloudLinux or server optimization? Our team at @CustomerPanel is ready to help 24/7.