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Server administration
Technical references for administrators with the required access. Our team can take care of the work when needed.
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Guides in this category
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An LC.8 error appeared
An LC.8 error in LiteSpeed means your assigned IP address was blacklisted because a nulled (pirated) version of the software was installed on it.
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Check and restart LiteSpeed on an administered server
Check LiteSpeed’s status and restart it with systemd on a server you administer, then verify your websites and logs once the restart is complete.
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Check HTTPS and the LiteSpeed WebAdmin certificate
Is LiteSpeed WebAdmin showing an HTTPS warning? Check the certificate’s name, validity and trust, then confirm how it is renewed and deployed.
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Check scheduled tasks for LiteSpeed and WordPress
Find the scheduled tasks that affect LiteSpeed or WordPress (account cron, server tasks, WP-Cron, crawler) and check whether they actually run.
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Diagnose a MySQL or MariaDB connection error
MySQL or MariaDB connection error? Match the exact message to the right check: PHP module, credentials, database name, socket or database service.
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Do I have to restart my server after installing KernelCare?
Not necessarily: KernelCare patches the running kernel, but a new kernel, Secure Boot setup or other components can still require a planned reboot.
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Do you use the same technology as Oracle, Red Hat or SUSE?
Does KernelCare use the same technology as Oracle, Red Hat or SUSE? No: its method for generating and applying patches was developed in-house.
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Does KernelCare work with third-party drivers?
Yes, KernelCare works with third-party drivers. However, it does not update them, so you still need to install updates for those drivers manually.
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How Imunify360 Malware Cleanup works
Learn how Imunify360 Malware Cleanup cleans or trims infected files, keeps a backup of each one and why some files may be skipped during cleanup.
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How KernelCare works
What a kernel is, why it needs patching and how KernelCare applies security patches to the running kernel without rebooting the server.
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How to force a KernelCare update
Force KernelCare to apply available patches right away by running the kcarectl update command as root, then check the result shown in your terminal.
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How to implement delayed updates
Configure KernelCare’s delayed feed and understand what the 24-hour delay means for applying patches.
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How to install CloudLinux on cPanel
For administrators: choose between installation and conversion, confirm prerequisites and recovery, install CloudLinux on cPanel and verify the service.
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How to install KernelCare
Prepare a KernelCare installation on a Linux server: kernel compatibility, licensing, Secure Boot, the TuxCare procedure and checking that patches apply.
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How to migrate from Ksplice to KernelCare
For administrators: replace Ksplice with KernelCare using TuxCare’s official script, after checking the kernel, licence and maintenance window.
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How to switch from LiteSpeed to Apache
Switch between LiteSpeed and Apache on a cPanel/WHM server using the supplied switching script and check your sites afterward.
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How to uninstall KernelCare
Uninstall KernelCare from your server with a single command for the yum package manager, run in a terminal with root privileges.
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How to uninstall LiteSpeed
Uninstall LiteSpeed Web Server from your server by running, in a terminal, the uninstall script that is included with the software.
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I'm switching from Ksplice to KernelCare, should I restart?
Understand the conditions for migrating from Ksplice to KernelCare and plan maintenance around the server’s state.
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Imunify360: understand its protections and respond to an alert
Understand the roles of the Imunify360 firewall, file scanning and Proactive Defense, then respond to an alert without weakening your protections.
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KernelCare and ePortal: patching an isolated network
A server without direct Internet access can receive KernelCare patches through ePortal. Choose the delivery path, confirm prerequisites and track deployment.
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KernelCare: check connectivity, proxy settings and patch access
For administrators: troubleshoot a KernelCare communication error by checking DNS, connectivity, TLS, proxy settings, redirects and licensing.
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KernelCare: check the version, support and applied patches
For administrators: identify the running kernel, confirm TuxCare coverage for that exact build and review the KernelCare live patches actually applied.
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KernelCare: manage a temporary pause in automatic updates
Manage a pause in KernelCare automatic updates: reason, owner, deadline, the setting’s limits and checks that patching has resumed afterwards.
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Official CloudLinux documentation
Where to find official documentation for CloudLinux OS and its tools, such as mod_lsapi, the Python, Ruby and Node.js selectors and MySQL Governor.
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Official Imunify360 documentation
Where to find official Imunify360 documentation: getting started, the user interface guide, scan results and protection features for Linux servers.
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Official KernelCare documentation
Where to find TuxCare’s official KernelCare documentation: installation, licensing, patch verification, compatibility requirements and the help centre.
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Official LiteSpeed documentation
Where to find official LiteSpeed documentation for the web server, LiteSpeed Web ADC and LSAPI, along with our own LiteSpeed guides.
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Prepare a LiteSpeed installation or migration
Before installing LiteSpeed, check the environment and licence, choose the right official procedure and verify your websites after the switch.
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Prepare and verify a LiteSpeed Web Server update
Prepare a LiteSpeed Web Server update: identify the right component, choose the channel and method, then check the outcome on your website.
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Prepare CloudLinux for a DirectAdmin server
For administrators: tell a new DirectAdmin installation apart from a CloudLinux conversion, prepare the work and validate each component afterwards.
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Review orphaned tasks in a backup manager
Before removing an orphaned task from a backup manager, check its dependencies, prepare a way to reverse the change and verify the result afterwards.
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Understanding and using Imunify360 Proactive Defense
How Imunify360 Proactive Defense works, how to check its mode for your account and how to review a detection before creating an exception.
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What happens if I install KernelCare but my kernel is not supported?
What an “Unknown Kernel” or “Unsupported Kernel” message from KernelCare means, how to find the cause and how to respond without forcing patches.
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What is $VH_ROOT?
The $VH_ROOT variable refers to the user’s home directory. This short answer explains what it means and where to get help with a Nuagerie service.
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What is KernelCare?
KernelCare automatically applies important security updates to the running kernel without restarting your server. Here is what this service does.
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What kernels does KernelCare support?
How to check whether KernelCare covers your server’s exact kernel, based on distribution, architecture, lifecycle status and the type of environment.
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When does KernelCare check for updates?
KernelCare automatically checks for updates every 4 hours, keeping your servers up to date without you having to start the check yourself.
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Where can I get documentation or support?
Find help with KernelCare: the Nuagerie Support page for your services, KernelCare’s official support team and its online documentation.
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Which monitoring addresses should your firewall allow?
There is no single list of monitoring addresses: have the sources for your specific service confirmed, then apply a targeted, recoverable firewall rule.
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Who develops KernelCare patches?
Who prepares KernelCare patches: a team of kernel developers who monitor security mailing lists and prepare and test patches full time.
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xml2-config error: diagnose PHP build dependencies
Understand the xml2-config not found error when compiling PHP, tell older build procedures from current ones and check the libxml2 dependencies safely.
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