English
Magyar
CloudLinux OS is a Red Hat-based Linux operating system designed specifically for web hosting providers. One of its key features is that it allows users to limit system resources, thereby preventing any single user from overloading the system. It also supports PHP and Python virtual environments, enabling users to run different versions of PHP and Python simultaneously.
Changing CloudLinux licences and switching between editions
How can a CloudLinux licence or edition (Legacy, Shared Pro, Admin, Solo) be changed on an already installed server, using an activation key or an IP-based licence?
CloudLinux OS components
The main components of the CloudLinux OS are: CloudLinux Manager, LVE and CageFS, which protect the server’s resources.
CloudLinux OS releases
A table showing the differences in features and resources between the CloudLinux OS Solo, Admin, Legacy (formerly Shared) and Shared Pro editions.
CloudLinux resource limits
An overview of CloudLinux OS resource limits (CPU, memory, I/O, number of processes) and their default values.
How can I check my CloudLinux LVE resource usage in real time?
How can you monitor CloudLinux LVE resource usage (CPU, memory, I/O, processes) in real time via cPanel and SSH, and what should you do if you reach the limit?
How do cron and SSH count towards resource limits?
Why might a cron job or a command running via SSH slow down a website on CloudLinux hosting, and how should you schedule resource-intensive tasks?
Installing CloudLinux OS
How to install CloudLinux OS, and how to convert an existing AlmaLinux, Rocky Linux or CentOS server using the cldeploy script.
Is it safe to use an old version of PHP? (HardenedPHP)
What is CloudLinux HardenedPHP, how do PHP versions that are no longer supported by php.net receive security patches, and why is it still worth updating?
Managing LVE limits via the command line (lvectl, lveinfo, lveps)
Configuring and querying CloudLinux LVE limits, and identifying users causing high load via the command line using the lvectl, lveinfo, lveps and lvetop tools.
The lifecycle of the CloudLinux operating system
How long is CloudLinux OS 6–10 supported for, what does Extended Support (ELS) mean, how can you find out the version, and when should you update?
Upgrading CloudLinux from version 8 to 9 using ELevate
How to upgrade a CloudLinux OS 8 server to CloudLinux OS 9 on-premises, using the ELevate tool, without a control panel, and on a cPanel server.
What do the fault counters mean on the Resource Usage page?
How should the graphs, tables and fault counters on the cPanel Resource Usage page be interpreted, and what does the Snapshot tab show?
What is CageFS, and why can’t I see certain files or commands?
What is CloudLinux CageFS, how does it protect hosting accounts from one another, and why aren’t all files, processes and commands visible via SSH?
What is the MySQL Governor, and why are my database queries slowing down?
How does the CloudLinux MySQL Governor limit database usage on hosting accounts, what impact does this have on the website, and how can the load be reduced?
‘508 Resource Limit Is Reached’ error: what does it mean and what should I do?
What does the ‘508 Resource Limit Is Reached’ error message mean on CloudLinux hosting, what causes it, and how can it be permanently resolved?
No results were found for this topic. Search the entire knowledge base