--- title: "WHM" source: "https://docs.nexcess.com/learn/control-panel/whm/" description: "Covers cPanel. Includes Improving Website Speed with Apache mod_expires and browser caching, Configuring cPanel Backups in WHM, WHM Tutorial: DNS Tools and Functions, What is Memory Usage? and Troubleshooting Guide: PHP-FPM and max_children. 71 articles." taxonomy: "lw_resource_category" parent: "Control Panel" articles: "71" --- # WHM Covers cPanel. Includes Improving Website Speed with Apache mod_expires and browser caching, Configuring cPanel Backups in WHM, WHM Tutorial: DNS Tools and Functions, What is Memory Usage? and Troubleshooting Guide: PHP-FPM and max_children. 71 articles. ## Sections - [cPanel](https://docs.nexcess.com/learn/control-panel/whm/cpanel.md): Includes Improving Website Speed with Apache mod_expires and browser caching, Configuring cPanel Backups in WHM, Viewing Website Statistics in cPanel, Troubleshooting Guide: PHP-FPM and max_children and Getting Started with cPanel. 98 articles. ## Articles - [Improving Website Speed with Apache mod_expires and browser caching](https://docs.nexcess.com/hosting/performance/website-optimization/improving-website-speed-with-apache-mod_expires-and-browser-caching.md): Learn to use Apache's mod_expires on cPanel to set browser caching, boosting site speed and reducing server load. - [Configuring cPanel Backups in WHM](https://docs.nexcess.com/hosting/control-panel/whm/backup-and-restore/configuring-cpanel-backups-in-whm.md): Your website is valuable; protect it with backups. Whether it's an attack or accidental deletion, backups act as insurance. Customize your strategy and set up b… - [WHM Tutorial: DNS Tools and Functions](https://docs.nexcess.com/hosting/control-panel/whm/whm-tutorial-dns-functions-and-tools.md): The WebHost Manager's (WHM's) interface very useful when it comes to updating, creating, or removing DNS zone files for your domains. - [What is Memory Usage?](https://docs.nexcess.com/hosting/performance/server-optimization/what-is-memory-usage.md): Learn how to check and understand memory usage on your Linux server. Explore commands like free, watch, top, and vmstat to optimize performance. - [Troubleshooting Guide: PHP-FPM and max_children](https://docs.nexcess.com/hosting/server-administration/linux/troubleshooting-guide-php-fpm-and-max_children.md): Fix slow sites by troubleshooting PHP-FPM max_children on cPanel, Plesk, & InterWorx. Learn to find logs, adjust settings safely, & check server resources. - [Whitelisting IPs in WHM](https://docs.nexcess.com/hosting/control-panel/whm/security/whitelisting-ips-in-whm.md): CSF is the default firewall on Liquid Web servers. Unblock and whitelist IPs via WHM, managing CSF for enhanced server security. - [How to Repair the DNS DCV Error in cPanel](https://docs.nexcess.com/hosting/control-panel/whm/cpanel/website-management/how-to-repair-the-dns-dcv-error-in-cpanel.md): In this article, we will focus on solving one of the specific issues seen when using Cloudflare and AutoSSL together on a cPanel/WHM server. Let's review how to… - [Restoring a cPanel Account from WHM](https://docs.nexcess.com/hosting/control-panel/whm/security/restoring-a-cpanel-account-from-whm.md): Cleaning up your server and getting rid of old cPanel accounts? What happens if you accidentally delete an account? You can restore cPanel accounts from WHM. Re… - [Install WHMCS](https://docs.nexcess.com/hosting/control-panel/whm/install-whmcs.md): WHMCS streamlines client management, billing, and support for web hosting businesses, saving time with task automation and enabling focus on business growth. - [Creating Reseller Accounts in WHM](https://docs.nexcess.com/hosting/control-panel/whm/creating-reseller-accounts-in-whm.md): A guide to creating a reseller account for the sale of server space in WHM. - [How to Use the Mail Queue Manager in WHM](https://docs.nexcess.com/hosting/control-panel/whm/email-management/how-to-use-the-mail-queue-manager-in-whm.md): Diagnose email deliverability issues using the Mail Queue Manager in WHM. Learn how to safely search, view, deliver, delete, and unfreeze queued emails. - [Editing DNS Zone Files in WHM/cPanel](https://docs.nexcess.com/hosting/control-panel/whm/editing-dns-zone-files-in-whm-cpanel.md): Need to edit your DNS zone but don't know how or where? Follow our straightforward How To tutorial covering setting up custom name servers and as well as how to… - [Upgrading MySQL in WHM](https://docs.nexcess.com/hosting/control-panel/whm/database-management/upgrading-mysql-in-whm.md): Safely upgrade MySQL or MariaDB in WHM. Learn how to create database backups, repair crashed tables, and navigate the WHM upgrade interface. - [Database Management in WHM](https://docs.nexcess.com/hosting/control-panel/whm/database-management.md): Oversee your server's databases with WHM. Access phpMyAdmin, manage remote MySQL access, and repair tables to keep data running smoothly. - [Changing Your Website IP Address in WHM](https://docs.nexcess.com/hosting/control-panel/whm/changing-your-website-ip-address-in-whm.md): During migration, WHM typically updates website IP addresses automatically. But for sites requiring unique IPs for mail and other services, create an IP pool an… - [Change Your WHM / cPanel Server Hostname](https://docs.nexcess.com/hosting/control-panel/whm/change-your-whm-cpanel-server-hostname.md): Easily change your WHM / cPanel server hostname via WHM — then update it in your Liquid Web account and DNS records. - [Change Your Hostname via WHM](https://docs.nexcess.com/hosting/control-panel/whm/change-your-hostname-via-whm.md): Easily change your server hostname via WHM, Plesk, InterWorx, or SSH—then update it in your Liquid Web account and DNS records. - [Adding IP Addresses Manually in WHM](https://docs.nexcess.com/hosting/control-panel/whm/adding-ip-addresses-manually-in-whm.md): To avoid IP address denial, add addresses manually in WHM after creating them in your Liquid Web account. - [Getting Started with WHM and cPanel](https://docs.nexcess.com/hosting/control-panel/whm/getting-started-with-whm.md): Manage your server effortlessly with WHM, whether hosting one site or many. It's your key to smooth server and cPanel account management. - [How to Create an Addon Domain in cPanel](https://docs.nexcess.com/hosting/control-panel/whm/cpanel/website-management/create-an-addon-domain.md): Learn how to create an addon domain in cPanel to host multiple websites. This guide walks you through the steps to add a new, separate domain. - [Enabling advanced zone editor features in cPanel](https://docs.nexcess.com/hosting/control-panel/whm/cpanel/website-management/enabling-advanced-zone-editor-features-in-cpanel.md): Learn to enable AAAA, CAA, DMARC, SRV, & TXT DNS records in cPanel by modifying a package's feature list in WHM's Feature Manager for advanced DNS control. - [Creating a cPanel User Account](https://docs.nexcess.com/hosting/control-panel/whm/cpanel/website-management/creating-a-cpanel-user-account.md): WHM handles server-level tasks, while cPanel is for individual domain management. To use cPanel, create a cPanel user account via WHM as detailed in this articl… - [Converting an Addon Domain to a Separate CPanel Account](https://docs.nexcess.com/hosting/control-panel/whm/cpanel/website-management/converting-an-addon-domain-to-a-separate-cpanel-account.md): Hosting multiple domains in one cPanel account offers convenience but limits resource customization. Convert an Addon Domain to a separate account in WHM for gr… - [Using AutoSSLs in cPanel and WHM](https://docs.nexcess.com/hosting/control-panel/whm/cpanel/security/using-autossls-in-cpanel-and-whm.md): To secure customer information on your website, enabling the AutoSSL feature in WHM is a recent and convenient option. AutoSSL lets you apply SSL certificates t… - [Missing Private Key for SSL in WHM](https://docs.nexcess.com/hosting/control-panel/whm/security/missing-private-key-for-ssl-in-whm.md): When renewing third-party SSLs on your Liquid Web server in WHM, the renewed certificate may lack the original private key. You can use the private key from the… - [Limiting WHM Access Using Host Access Control](https://docs.nexcess.com/hosting/control-panel/whm/security/limiting-whm-access-using-host-access-control.md): You can use Host Access Control in WHM to add an extra layer of security to have control over which IP addresses are able to connect to critical administrative… - [Enabling Two-Factor Authentication in WHM](https://docs.nexcess.com/hosting/control-panel/whm/security/enabling-two-factor-authentication-in-whm.md): Secure your server by enabling Two-Factor Authentication (2FA) in WHM. Learn how to configure 2FA for root access and manage cPanel users. - [Enable Let’s Encrypt for AutoSSL on WHM-Based Servers](https://docs.nexcess.com/hosting/control-panel/whm/security/enable-lets-encrypt.md): Follow our tutorial to assign free SSLs on all your domains that will automatically renew! We walk you through the SSL process with easy-to-follow screenshots a… - [Deleting a cPanel Account from WHM](https://docs.nexcess.com/hosting/control-panel/whm/security/deleting-a-cpanel-account-from-whm.md): Need to remove a cPanel account? Learn how to safely terminate accounts from WHM, retain your DNS zone data, and ensure you have proper backups first. - [Changing Your Root Password in WHM](https://docs.nexcess.com/hosting/control-panel/whm/security/changing-your-root-password-in-whm.md): Changing the root password alters your main server and WHM login credentials, ensuring uniqueness and enhancing security. - [Blocking IP Addresses in WHM](https://docs.nexcess.com/hosting/control-panel/whm/security/blocking-ip-addresses-in-whm.md): Need to block an IP? This guide shows how to use ConfigServer Security & Firewall in WHM to permanently or temporarily deny any IP address. - [API Tokens for Remote Access in WHM](https://docs.nexcess.com/hosting/control-panel/whm/security/api-tokens-for-remote-access-in-whm.md): Create and manage WHM API Tokens to allow secure, password-less remote access or to enable API functionality for your server. - [Using the CloudLinux PHP Selector in cPanel and WHM](https://docs.nexcess.com/hosting/control-panel/whm/php-management/using-the-cloudlinux-php-selector-in-cpanel-and-whm.md): Learn to manage PHP versions & extensions using CloudLinux PHP Selector in cPanel/WHM. See how it offers more granular control than cPanel's MultiPHP. - [PHP Management in WHM](https://docs.nexcess.com/hosting/control-panel/whm/php-management.md): Master your server's PHP with WHM. Use EasyApache 4 to install PHP versions, manage extensions, and configure php.ini for your users. - [Troubleshooting: Using /script/upcp for WHM and cPanel Issues](https://docs.nexcess.com/hosting/control-panel/whm/troubleshooting-using-script-upcp-for-whm-and-cpanel-issues.md): Resolve WHM and cPanel errors with the /scripts/upcp command. Learn to troubleshoot failed auto-updates, Paper Lantern issues, and dependencies. - [Setting Up Custom (Private) Nameservers in WHM](https://docs.nexcess.com/hosting/control-panel/whm/setting-up-custom-private-nameservers-in-whm.md): This article shows how to setup custom (private) nameservers in WHM. - [WHM Security Advisor](https://docs.nexcess.com/hosting/control-panel/whm/security/whm-security-advisor.md): cPanel's Security Advisor alerts admins to potential security issues and configurations, helping ensure server security and performance. - [Whitelisting ModSecurity Rules in WHM](https://docs.nexcess.com/hosting/control-panel/whm/security/whitelisting-modsecurity-rules-in-whm.md): ModSecurity is a vital defense against malicious attacks. If accidental IP blocking happens, use the ModSecurity CMC plugin in WHM to whitelist IPs. - [Unblock Your WHM Server’s IP Address](https://docs.nexcess.com/hosting/control-panel/whm/security/unblock-your-whm-servers-ip-address.md): Your server firewall blocks malicious traffic based on rules but can sometimes affect legitimate access. If you're locked out, unblock your IP. - [Security in WHM](https://docs.nexcess.com/hosting/control-panel/whm/security.md): Lock down your server with WHM. Use Security Advisor, CSF firewall, cPHulk, and ModSecurity to protect against threats and secure data. - [Partner VPS Configuration IDs for WHMCS](https://docs.nexcess.com/hosting/hosting-services/cloud-vps/partner-vps-configuration-ids-for-whmcs.md): Update your WHMCS automations with Liquid Web's newest Linux VPS packages. Review the complete list of new configuration IDs, product codes, and specs. - [PHP Memory_Limit](https://docs.nexcess.com/hosting/performance/website-optimization/php-memory-limit.md): The PHP Memory_Limit defines how much memory a process can use on your server. When a client request initiates a PHP process, exceeding this limit causes the pr… - [Adjusting LFD Notifications for Load Levels](https://docs.nexcess.com/hosting/security/firewall-management/configserver-security-firewall-csf/adjusting-lfd-notifications-for-load-levels.md): LFD monitors server security and load levels. Adjust PT_Load_Level in WHM to prevent false positives by matching it to the server's CPU cores. - [Setting Up ModSecurity Configuration](https://docs.nexcess.com/hosting/security/firewall-management/configserver-security-firewall-csf/setting-up-modsecurity-configuration.md): Customize ModSecurity's global settings using the ModSecurity Configuration. Learn to enable the settings you need in this guide. - [Getting Started with Configserver’s ModSecurity Control Plugin](https://docs.nexcess.com/hosting/security/firewall-management/configserver-security-firewall-csf/getting-started-with-configservers-modsecurity-control-plugin.md): Use the ConfigServer ModSecurity Control (CMC) plugin in WHM to whitelist specific rules for a secure yet smooth-running site. Configure it with this article's… - [Installing Configserver’s ModSecurity Control Plugin on Your Server](https://docs.nexcess.com/hosting/security/firewall-management/configserver-security-firewall-csf/installing-configservers-modsecurity-control-plugin-on-your-server.md): Protect your web apps using ModSecurity WAF. Learn how to verify your Apache installation, install rules, and add the ConfigServer CMC plugin to WHM. - [What is “Least Privilege”?](https://docs.nexcess.com/hosting/security/what-is-least-privilege.md): Secure your server using the Principle of Least Privilege (PoLP). Learn how restricting user access prevents malware and how to manage file permissions. - [Using cPHulk to Prevent Brute-Force Attacks](https://docs.nexcess.com/hosting/security/using-cphulk-to-prevent-brute-force-attacks.md): cPHulk is an added security feature in WHM, blocking login attempts in various services without affecting regular traffic. - [Exploring your Fully Managed Linux Server](https://docs.nexcess.com/hosting/server-administration/linux/exploring-your-fully-managed-linux-server.md): Our Web Panel servers are designed to provide you with a simple, effective Linux hosting experience. Learning about the panel and the tools it provides to help… - [Scheduling PHP scripts with cron jobs](https://docs.nexcess.com/hosting/server-administration/linux/scheduling-php-scripts-with-cron-jobs.md): Learn to automate PHP scripts with cron jobs. Use direct execution or HTTP clients (wget/lynx) & manage output. For cPanel, Plesk & InterWorx. - [What is a Cron?](https://docs.nexcess.com/hosting/server-administration/linux/what-is-a-cron.md): Cron is a time-based job scheduling tool on Linux systems that can run periodically at fixed times, dates, and intervals. It is typically used to automate syste… - [Logging into WHM](https://docs.nexcess.com/hosting/control-panel/whm/logging-into-whm.md): Log into WHM via your Liquid Web account by accessing your server dashboard and clicking “Go to WHM.” Enter your server credentials to access WHM or log in dire… - [What is CloudLinux?](https://docs.nexcess.com/hosting/server-administration/linux/what-is-cloudlinux.md): If you have multiple cPanel accounts and domains on your server, you may want to look into CloudLinux as a way to help restrict the amount of memory each user c… - [How to Enable Automatic Updates in cPanel/WHM](https://docs.nexcess.com/hosting/control-panel/whm/security/how-to-enable-automatic-updates-for-cpanelwhm.md): These instructions are intended specifically for changing the update preferences for cPanel, RPMs (operating system packages), and SpamAssassin rules on cPanel… - [Manage account suspensions in WHM](https://docs.nexcess.com/hosting/control-panel/whm/manage-account-suspensions-whm.md): This article will cover the process of suspending a cPanel account in WHM. There are a number of reasons you may want to temporarily or permanently suspend an a… - [How to Use Disk Quotas in Dedicated Linux Servers With cPanel](https://docs.nexcess.com/hosting/control-panel/whm/cpanel/cpanel-dedicated-server-disk-quotas.md): Disk space management in dedicated Linux servers with cPanel is often underestimated. Learn to manage disk space in your cPanel server. - [Changing cPanel Passwords in WHM](https://docs.nexcess.com/hosting/control-panel/whm/security/changing-cpanel-passwords-in-whm.md): With root WHM access, you can change any cPanel user's password without knowing the old one. This also updates their email, FTP, and SSH passwords. - [Update WHM/cPanel](https://docs.nexcess.com/hosting/control-panel/whm/update-whm-cpanel.md): Secure your server by updating WHM and cPanel. Learn how to check your current version, configure automatic update tiers, and manually upgrade. - [Storing cPanel Backups in Object Storage](https://docs.nexcess.com/hosting/control-panel/whm/backup-and-restore/storing-cpanel-backups-in-object-storage.md): Opt for Liquid Web Object Storage to store cPanel backups separately, ensuring better organization and enhanced security. - [Restoring with Restore a Full Backup/cpmove File in WHM](https://docs.nexcess.com/hosting/control-panel/whm/backup-and-restore/restoring-with-restore-a-full-backup-cpmove-file-in-whm.md): The WHM "Restore a Full Backup/cpmove File" feature lets you restore full account backups and assists with server transfers, despite some limitations. - [Restoring CSF Firewall Configuration from a Backup](https://docs.nexcess.com/hosting/security/firewall-management/configserver-security-firewall-csf/restoring-csf-firewall-configuration-from-a-backup.md): Protect your server by reverting unwanted changes. Learn how to safely restore your CSF firewall configuration from a backup in WHM's Firewall Profiles. - [Using Amazon S3 and WHM for Off-Site Backups](https://docs.nexcess.com/hosting/control-panel/whm/backup-and-restore/using-amazon-s3-and-whm-for-off-site-backups.md): Learn to configure WHM to send backups to Amazon S3. Seamlessly manage your off-server backups for your site's security and data protection. - [What Is Jailed Shell and How Can You Use It?](https://docs.nexcess.com/hosting/server-administration/linux/what-is-jailed-shell.md): Jailed Shell restricts users to their directories for secure CLI access. Enable via cPanel, Plesk, InterWorx, or Linux command line. - [The Ultimate Guide to the WHM Control Panel (2025)](https://docs.nexcess.com/hosting/control-panel/whm.md): Master server administration with our ultimate WHM & cPanel guide. Learn to manage accounts, security, DNS, backups, and more. - [WHM Backup and Restore](https://docs.nexcess.com/hosting/control-panel/whm/backup-and-restore.md): Protect your server with WHM's backup tools. Learn to configure, create, and restore accounts, and enhance security with off-server backups. - [Email Management in WHM](https://docs.nexcess.com/hosting/control-panel/whm/email-management.md): Take control of your server's email. Manage the mail queue, troubleshoot delivery, and configure mail services for all users from WHM. - [Adding a domain to your Control Panel](https://docs.nexcess.com/hosting/control-panel/adding-a-domain-to-your-control-panel.md): Learn how to add and manage domains in WHM/cPanel, Interworx, or Plesk with these step-by-step guides. - [Log into your Control Panel](https://docs.nexcess.com/hosting/control-panel/log-into-your-control-panel.md): Control panels simplify server management by automating tasks. Learn how to log into popular options like WHM, cPanel, Interworx (Nodeworx & Siteworx), and Ples… - [Using HTTP/2 in Apache on cPanel](https://docs.nexcess.com/hosting/control-panel/whm/cpanel/using-http-2-in-apache-on-cpanel.md): Learn how to enable HTTP/2 on your cPanel server for faster website performance. This guide covers benefits, considerations, and step-by-step instructions. - [What is WHMCS?](https://docs.nexcess.com/hosting/control-panel/whm/what-is-whmcs.md): WHMCS streamlines web hosting business operations, automating tasks for client management, billing, and support, freeing up time for growth. - [Understanding the basics of LVE Manager in WHM](https://docs.nexcess.com/hosting/control-panel/whm/understanding-the-basics-of-lve-manager-in-whm.md): Learn to navigate and use WHM's LVE Manager on CloudLinux cPanel servers to monitor real-time usage, adjust user resource limits, and view historical stats.