In this category, you will find CloudLinux OS-related guides, FAQs, setup instructions, and troubleshooting articles written by our Support Engineers. Those will help you to tackle the most frequent problems, answer the most frequent questions, and explain non-trivial setups. Visit our Documentation page for administration guides and manuals where all our features are described in detail: https://docs.cloudlinux.com/
Getting Started
- Recommended CloudLinux & control panel conversion order
- What is CloudLinux?
- How do I install CloudLinux from scratch or convert existing server
- Integrating CloudLinux Components into a Custom Control Panel
- How do I convert my Linode CentOS server to CloudLinux?
- Configure CloudLinux software, PHP and mod_lsapi on a server with no control panel
Known Issues
- WHM account terminating fail: No module named 'wpos_modify_user_hook'
- Yum update failed with 'rpmfusion-free-updates' repository enabled
- Kernel isn't booting once CloudLinux is installed on Dell Servers (AlmaLinux/RockyLinux)
- FAILED: Web-server user 'nobody' is not in protected group specified in /proc/sys/fs/symlinkown_gid
- Curl error (27): Out of memory on DirectAdmin servers
- hidepid protection disabled
FAQ
- From Which IP Will CloudLinux Staff Connect to my Server
- How to submit a feature request?
- How to upgrade CloudLinux 7 to CloudLinux 8?
- How to install the ionCube loader for alt-php74?
- SSL or TLS errors on CentOS 6/ELS
- How Do I Translate CloudLinux Plugins to Custom Language?
PHP Selector
- PHP Selector Integration with cPanel
- PHP Selector Integration with Plesk Panel
- PHP Selector Integration with DirectAdmin
- Missing MySQL extension or "MySQL_ND vs MySQL"
- The alt-php7* WebP support missing
- The pdo_mysql extension is missing on alt-php81
Limits & LVE Stats
- How to set unlimited resources for LVE limits?
- IO limits are not working on XFS filesystem.
- Inodes usage statistics is not showing or showing incorrect count in cPanel
- One of the users shows no LVE statistics activity
- Package LVE Limits are not Applied to Users
- LVE Statistics Doesn't Show Stats for User with Big UIDs
CageFS
- Unable to save data to /var/cagefs/.../alt-phpXX/alt_php.ini (No such file or directory:...)
- How to install CageFS manually?
- ls /var/.cagefs'' returned non-zero exit status 1
- Act like CageFS is disabled
- CageFS FAILED: There are missing mount points
- Emails Bounce Back when CageFS is Enabled
Apache mod_lsapi PRO
MySQL Governor
- The dbtop shows "Can't connect to socket. Maybe governor is not started" error
- How to change MySQL version or switch to MariaDB
- MySQL Governor installation fails with "ValueError: too many values to unpack (expected 2)"
- Upgrade from Mysql 8.x to MariDB 10.x not possible, what's next?
- MySQL Governor Issue: "You are attempting to install a LOWER mysql version than currently installed one"
- MySQL 5.7 and "Got an error writing communication packets" message
CloudLinux Kernels
- How to choose the correct kernel to boot on CloudLinux OS 7
- CloudLinux Manager shown: Reboot your system to update the kernel
- How to resolve a kernel crash on an HP server?
- Kernel: Event buffer is too long. Any new events are NOT being logged!
- There are no kernels in the Grub2 menu during the reboot
- Reboot your system to update the kernel message in WHM (CloudLinux OS 8)
Python/Ruby/NodeJS Selectors
- PHP Selector: "No selector dir for user XXX"
- Python Web Application on LiteSpeed server shows an error '503 Service Unavailable'
- How to enter the virtual environment
- Node.js Selector: No such file or directory
- Unable to install MySQL client
- Passenger Crash Troubleshooting on CloudLinux Servers
Yum & RPM Problems
- When installing ea-apache24-mod_lsapi the "Cannot install the best candidate for the job" error occurs
- "Requires: rhn-client-tools" error while yum operations
- Rpm package conflict during the convertion from AlmaLinux to CloudLinux 8
- CloudLinux ISO installation issue: "Failed to download metadata for repo"
- CloudLinux Gradual Rollout System
- Fix rpmdb: Thread died in Berkeley DB library
Fighting High Load
- Understanding the High Load Average root cause
- How big your swap partition to be
- What to Do if Slab Cache Grows and Negatively Impacts the Server Performance
- Load Averages is high on VMware VPS
- High load average without visible CPU consuming processes. CPU scaling, kondemand
- How do I install VMware-Tools/Improving server performance when on VMware
General Administration & non-CloudLinux Guides
- How can I report a vulnerability?
- Validating CloudLinux license
- CentOS 7 error restarting/starting a systemd service: :Unable to register authentication agent
- CloudLinux Manager Dashboard displays the Malfunction status for MySQL Governor
- What does the number in the "Installed products" in the CLN Dashboard mean?
- FAILED: Details: /var/cagefs located on partition with quota disabled