CloudLinux
CloudLinux setup and use: LVE limits, CloudLinux Manager, CageFS and PHP/Node.js selectors.
31 guides · page 1 of 2
Check CPU, memory and process limits in cPanel (Resource Usage)
Read the CloudLinux Resource Usage page in cPanel to see CPU, memory, entry processes and I/O limits, understand 508 errors, and find what makes your site slow.
CloudLinux AccelerateWP explained: one-click WordPress optimisation
What CloudLinux AccelerateWP is, how its optimisation suite and smart advice work with WordPress, how it compares with LiteSpeed Cache, and when to use it.
CloudLinux CageFS explained: what it does for your hosting account
What CloudLinux CageFS is, how it isolates each cPanel account in its own file system, what you can and cannot see over SSH, and common CageFS questions.
CloudLinux hardened PHP explained: are old PHP versions safe?
What CloudLinux hardened PHP (alt-php) is, how it backports security fixes to end-of-life PHP versions, its limits, and why you should still plan an upgrade.
CloudLinux I/O and IOPS limits: why your site is slow during backups and imports
How CloudLinux IO and IOPS limits affect disk-heavy tasks such as backups, imports and image processing, how to spot IO faults in Resource Usage and how to reduce disk load.
CloudLinux lveinfo, lvetop and lvectl: find resource-heavy accounts from SSH
Root guide to the CloudLinux command-line tools: watch live usage with lvetop, query history and faults with lveinfo, and view or change limits with lvectl.
CloudLinux Manager admin settings: limits, packages and reseller limits (root guide)
Configure CloudLinux Manager in WHM as root: default LVE limits, per-package limits, enabling reseller limits, fault notifications and selector options.
CloudLinux memory limit (PMEM) errors: causes and fixes
Fix 500 and 503 errors caused by the CloudLinux physical memory limit: find memory faults, tell them apart from PHP memory_limit errors, and reduce memory use.
CloudLinux MySQL Governor explained: database limits on shared hosting
How CloudLinux MySQL Governor tracks and limits database usage per account, why heavy queries get restricted, and how to fix slow queries that hit the limits.
CloudLinux PHP Selector vs cPanel MultiPHP Manager: which one to use
The difference between CloudLinux Select PHP Version and cPanel MultiPHP Manager, which one controls your site's PHP on MdmHost, and how to avoid conflicts.
Configure CloudLinux PHP Selector as root: versions, defaults and extensions
Set up CloudLinux PHP Selector for your users as root: install alt-php versions, choose the default version, default extensions and options, and fix selector issues.
Convert AlmaLinux to CloudLinux on a DirectAdmin, Plesk or panel-less server
Convert an AlmaLinux or Rocky server to CloudLinux OS with cldeploy, then set up LVE limits, CageFS and PHP Selector on DirectAdmin, Plesk or a server without a panel.
Enable ionCube or SourceGuardian loader with CloudLinux PHP Selector
Fix "requires the ionCube PHP Loader" errors on cPanel by enabling ionCube or SourceGuardian in CloudLinux PHP Selector, choosing a compatible PHP version and testing.
Enable Node.js and Python Selector for cPanel users (CloudLinux root guide)
Install alt-nodejs and alt-python versions, enable the Node.js and Python selectors in CloudLinux Manager, set defaults and limit what users can run.
Enable PHP extensions and change PHP options in CloudLinux PHP Selector
Turn PHP extensions such as imagick, intl and ionCube on or off and change memory_limit, upload_max_filesize and max_execution_time with CloudLinux PHP Selector.
Find why a WordPress site is slow with CloudLinux X-Ray
Use CloudLinux X-Ray to trace slow PHP requests: see which plugins, database queries and external calls take time, and turn the findings into concrete fixes.
Fix "508 Resource Limit Is Reached" on CloudLinux hosting
Why a website shows 508 Resource Limit Is Reached on CloudLinux, how to find which limit was hit in Resource Usage, and the fixes that stop it coming back.
Got a CloudLinux "resource limits reached" email? What it means
What the CloudLinux email about reaching CPU, memory, IO or entry process limits means, how to read it, whether to worry, and what to do to stop the faults.
How to change the PHP version with CloudLinux PHP Selector in cPanel
Switch your website to a newer or older PHP version with Select PHP Version in cPanel on CloudLinux, test the site and fix errors after an upgrade.
How to install CloudLinux on a cPanel server (root guide)
Convert an AlmaLinux cPanel server to CloudLinux OS with cldeploy, then install CageFS and CloudLinux Manager and set default LVE limits as root.
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