Definition of WHM Functions

Web Host Manager, or WHM is a fantastic interface that houses a collection of tools to manage your server and any websites that are hosted on your server. In this article we will briefly cover the functions that are available through WHM.  Each item can be searched in WHM's search bar in the top left upon logging in for quick access.

search bar in WHM

Server Configuration

• Basic cPanel & WHM Setup – Displays your basic server settings
• Change Root Password – Changes your root password
• Configure cPanel Cron Jobs – Allows you to configure Cron jobs that will run as the root user
• Initial Quota Setup – Enables Quota management on machines that have a kernel that doesn't support quotas
• Server Time – Set the server timezone / sync the time
• Statistics Software Configuration – Enables you to customize the statistics settings
• Tweak Settings – Many tweaks to increase/decrease server responsiveness
• Update Preferences – Configure the way your server will be updates

Support

• Create Support Ticket – Open a support ticket for cPanel WHM support directly
• Grant cPanel Support Access – Grant access to cPanel support staff
• Support Center – cPanel Support

Network Setup

• Change Hostname – Allows you to change the hostname of your server
• Resolver Configuration – Guides you through configuring your resolvers

Security Center

• Apache mod_userdir Tweak – Allows users to view their sites by entering a tilde (~)
• Compiler Access – Allows you to deny access to the compiler for unprivileged users
• Configure Security Policies – Provides the configuration settings to cpanel, webmail, and WHM
• cPHulk Brute Force Protection – Allows you to change the brute force protection rules
• Host Access Control – Allows you to define rules to allow or deny access to your server and services
• Manage External Authentications – Manage authentication providers and authenticated users
• Manage root's SSH Keys – Allows you to generate a new SSH key or import one
• Manage Wheel Group Users – Sets system Power User Permissions/Group
• ModSecurity Configuration – Configure global settings for ModSecurity
• ModSecurity Tools – Install and manage ModSecurity rules
• ModSecurity Vendors – Install and manage your ModSecurity vendors
• Password Strength Configuration – Allows you to modify the required password strength
• PHP open_basedir Tweak –  Prevents from opening files outside their home directory (if enabled)
• Security Advisor – Performs a quick security check
• Security Questions – Allows you to set a security question for when you access the system from a unrecognized IP
• Shell Fork Bomb Protection – Prevents users with Terminal/SSH access from using up all the systems resources
• SMTP Restrictions – Configure your server so that only specified users and daemons can connect to remote SMTP servers
• SSH Password Authorization Tweak – Allows you to enable/disable SSH password authentication
• Traceroute Enable/Disable – Enable/Disable statistics from the server to another host
• Two Factor Authentication – Configure two factor authentication

Server Contacts

• Edit System Mail Preferences – Enables system mail forwarding
• Contact Manager – Allows you to specify what types of alerts you receive

Resellers

• Change ownership of an Account – Allows you to change the ownership of a reseller account
• Change ownership of multiple accounts – Allows you to change the ownership of multiple reseller accounts
• Edit reseller privileges & nameservers – Manage your resellers permissions
• Email all resellers – Send an email to all resellers
• Manage reseller's IP delegation – Manage the IP Addresses your resellers can access
• Manage reseller's main/shared IP – Allows you to set your resellers main/shared IPs
• Reseller Center – Easy reseller account management
• Reset resellers – Forces resellers to use pre-made packages
• Show Reseller Accounts – List reseller accounts
• View usage/stats and Manage Account Status – Allows you to view statistics, suspend, terminate, etc

Service Configuration

• Apache Configuration – Multiple options for configuring Apache
• Configure PHP and SuExec – Allows you to configure Apache PHP Handler
• cPanel Log Rotation Configurations – Allows you to change the way cPanel rotates logs
• cPanel WebDisk Configuration – Allows you to configure the cipher list for Cpanels Web Disk
• cPanel Web Services – Allows you to configure the cipher list for Cpanels web services
• Exim Configuration Manager – Allows you to change the Exim configuration
• FTP Server Configuration – Allows you to configure the FTP Server Settings
• FTP Server Selection – Select which FTP Server you prefer
• Mailserver Configuration – Allows you to configure the Mailserver settings
• Manage Service SSL Certificates – Manage and install SSL certificates
• Nameserver Selection – Select the Nameserver Program you prefer
• PHP Configuration Editor – Allows you to edit the PHP configuration
• Service Manager – Allows you to control what services are enabled

Locales

• Configure Application Locales – Customize the language in which the system displays a user's locale
• Copy a Locale – Duplicate a locale into a standard locale or a non-standard locale
• Delete a Locale – Delete a locale
• Edit a Locale – Edit a locale
• Locate XML Downloads – Download a locale for editing
• View Available Locales – Shows a list of available locales

Backup

• Backup Configuration – Allows you to configure automated backups
• Backup Restoration – Allows you to restore a backup
• Backup User Selection – Enable or disable users from the new Backup or Legacy Backups systems
• Configuration File Rollback – Allows you to rollback changes to many services (if something breaks)
• Legacy Backup Configuration – Configure the legacy backup system
• Legacy Restore Backups – Restore backups using the legacy system
• Legacy Restore multiple Backups – Allows you to restore multiple backups using the legacy system
• Restore a Full Backup/cpmove File – Restore full backups, cPanel backups and cpmove files

Clusters

• Configuration Cluster – This is for configuring a Cluster (set of servers)
• DNS Cluster – Allows you to enable DNS clustering
• Remote Access Key – Helps setup a Remote Access Key

System Reboot

• Forceful Server Reboot – Force the server to reboot
• Graceful Server Reboot – Shutdown each service then reboots the server

Server Status

• Apache Status – Displays the status of the Apache Web server
• Daily Process Log – Displays information about your server's overall usage of resources
• Server information – Displays the server information
• Service Status – Shows the status of services and the server

Account Information

• List Accounts – (IMPORTANT) This lists all the accounts you have created
• List Parked Domains – Shows a list of Parked Domains
• List Subdomains – Shows a list of subdomains
• List Suspended Accounts – Shows a list of all accounts you have suspended
• Show Accounts over Quota – Shows a list of Accounts that have exceeded their Quota
• View Bandwidth Usage – Shows you the total bandwidth usage

Account Functions

• Change Site's Ip Address – Allows you to change a sites Ip Address if you have any available
• Create a New Account – ( Important ) This allows you to create an account just enter the details and then click Create and you'll have added a account
• Email all users – Sends an email to all your users
• Force Password Change – Allows you to force password changes
• Limit Bandwidth Usage – Allows you to limit a accounts bandwidth usage
• Manage Account Suspension – Allows you to suspend/unsuspend an account
• Manage Demo Mode – Allows you to Enable/Disable Demo Mode of cPanel/WHM
• Manage Shell Access – Manage what users have Shell access
• Modify an Account – Allows you to modify a account
• Password Modification – Changes a accounts password
• Quota Modification – Allows you to modify a account's disk quota
• Raw Apache Log Download – Download the raw Apache Log
• Raw FTP Log Download – Download the raw FTP logs
• Rearrange an Account – if your server allows you can modify an account's mount point
• Reset Account Bandwidth Limit – Resets all account bandwidth limits
• Show Active and inactive Accounts – Lists all active and inactive accounts
• Skeleton Directory – Allows you to make a custom page setting it so that any new accounts will have a default look/page
• Terminate Accounts – Completely removes account including data
• Unsuspend bandwidth Exceeders – Unsuspends users who are over their bandwidth limit
• Upgrade/Downgrade an Account – Gives you the ability to upgrade and downgrade an account
• Web Template Editor – Allows you to create placeholder web pages

Multi Account Functions

• Change multiple Sites' IP Addresses – Allows you to change the IP addresses of multiple accounts at once
• Modify/Upgrade Multiple Accounts – Allows you to Upgrade/Downgrade multiple accounts at once

Transfers

• Convert Addon Domain to Account – Convert an existing addon domain into a full cPanel account
• Copy an account from another server with account password – Allows you to copy an account from another cPanel server of the same version with the account password
• Review Transfers and Restores – Allows you to review previous transfers and restorations
• Transfer Tool – Copies multiple accounts from a remote server to your cPanel/WHM server

Themes

• Change WebHost Manager Theme – Allows you to change the WHM theme
• Theme Manager – Manage themes

Packages

• Add a Package – Allows you to create custom packages for new accounts
• Delete a Package – Removes a package from being available during new account creation
• Edit a Package – Modifies an existing packages resources
• Feature Manager – Allows you to disable/enable features inside of each user's cPanel

DNS Functions

• Add a DNS Zone – Allows you to add custom DNS Zones
• Add an A Entry for your Hostname – Adds an A entry for your hostmane
• Delete a DNS Zone – Allows you to remove DNS Zones
• Edit DNS Zone – Allows you to Edit DNS Zones
• Edit MX Entry – Allows you to edit MX Records (Mail)
• Edit Zone Templates – Allows you to edit the default zones that are used when creating DNS entries
• Nameserver Record Report – Displays information about nameservers used by this server's zones
• Park a Domain – Allows you to park current Domains
• Perform a DNS Cleanup – performs a DNS cleanup
• Reset a DNS Zone – (Caution) Allows you to Reset a DNS Zone
• Set Zone Time To Live (TTL) – Permits you to set the value for time to live (TTL) in your server's DNS zones
• Setup/Edit Domain Forwarding – Allows you to forward a Domain
• Syncronize DNS Records – Syncronizes the DNS entries across multiple servers

SQL Services

• Additional MySQL Access Hosts – Ability to use your Databases on other servers
• Change MySQL User Password – Ability Change Mysql Users password
• Database Map Tool – allows you to assign ownership of databases and database users
• Manage Database Users – Allows you to manage all database users on the server
• Manage Databases – Allows you to manage all databases on the server
• Manage MySQL Profiles –  Allows you to setup a remote Database server
• MySQL Root Password – Ability to change the MySQL root password
• phpMyAdmin – Allows you to make changes to a Dataase and/or import a sql file
• Repair a MySQL Database – Allows you to Repair a MySQL Database
• Show MySQL Processes – Shows you the running MySQL Processes

IP Functions

• Add a New IP Address – Assign a new IPv4 address (Only available on Cloud and Dedicated servers)
• Assign IPv6 Address – Assign IPv6 addresses (Only available on Cloud and Dedicated servers)
• Change a Site's IP Address – Allows you to change a sites IP Address if you have any available
• Configure Remote Service IPs – Allows you to configure remote mail servers and remote name servers
• IP Migration Wizard – Tells you what needs to be done if you change your IP Addresses
• IPv6 Ranges – Allows you to add, edit, and delete IPv6 address ranges
• Rebuild IP Address Pool – Scans for new available IP addresses
• Show IP Address Usage – Shows what your current IP assignments
• Show or Delete Current IP Addresses – Shows you your current IP addresses
• Show/Edit Reserved IPs – Allows you to reserve one or more IP addresses

Software

• EasyApache 3 (Apache Update soon to be deprecated) – Allows you to rebuild Apache/PHP with many extentions
• EasyApache 4 (Apache Update) – Allows you to rebuild Apache/PHP with many extentions
• Install a Perl Module – Allows you to install PERL Modules
• Install a RPM – Allows you to install a RPM package
• Module Installers – Allows you to install new modules
• MySQL/MariaDB Upgrade – Update MySQL to the latest version
• Rebuild RPM Database – Updates the list of available RPMs
• System Update – Updates all system software to the most current release
• Update Server Software – Updates server to the latest versions available

Email

• Greylisting – Enable or disable Greylisting for the entire server
• Mail Delivery Reports – Review messages sent and received by your server
• Mail Queue Manager – Allows you to clear the mail queue / deliver all items in mail queue
• Mail Troubleshooter – Will track down problems with email
• Mailbox Conversion – Convert to maildir or mdbox
• Repair Mailbox permissions – Corrects any problems with mailbox permissions
• Spamd Startup Configuration – Configure the startup options for the SpamAssassin daemon
• View Mail Statistics – Displays the mail statistics
• View Relayers – This shows you the mail relays
• View Sent Summary – Displays the total of message delivery attempts for each domain on the server.

System Health

• Background Process Killer – This allows you to kill all background processes
• Process Manager – Allows you to terrace and or kill any processes
• Show Current Disk Usage – This shows you the current disk usage
• Show Current Running Processes – Shows a list of all running processes

cPanel

• Change Log – cPanel/WHM changelog
• Customization – customize the branding and style that will be used for cPanel.
• Install cPAddons Site Software – This allows you to add cPAddons
• Manage cPAddons Site Software – This allows you to manage cPAddons
• Manage Plugins – Manage plugins that are available
• Modify cPanel & WHM News – Shows news on your users cPanel and WHM pages
• Reset a Mailman Password – Reset the password for your servers Mailman mailing list without needing the previous password
• Synchronize FTP Passwords – This is used to repair any FTP password issues that exist
• Upgrade to Latest Version – Update your cPanel/WHM installation to the most recent version for your server's Release Tier

SSL/TLS

• Generate an SSL Certificate and Signing Request – A form that requests an SSL certificate be generated
• Install an SSL Certificate and Setup the Domain – Location to upload the CRT file for your SSL certificate
• Manage AutoSSL – Manage the AutoSSL feature
• Manage SSL Hosts – Manages your SSL hosts
• Purchase and Install SSL Certificate – cPanels recommended SSL vendor
• SSL Storage Manager – View in-depth information about SSL related resources

Market

• Market Provider Manager – Manage products that are available to purchase via the cPanel interface.

Restart Services

• DNS Server (BIND/NSD) – Restarts your DNS server
• FTP Server (ProFTPd/PureFTPd) – Restarts FTP server
• HTTP Server (Apache) – Restarts HTTP server
• IMAP Server (Courier/Dovecot) – Restarts IMAP server
• Mail Server (Exim) – Restarts Mail server
• Mailing List Manager (Mailman) – Restarts mailing list manager
• SQL Server (MySQL) – Restarts SQL Server
• SSH Server (OpernSSH) – Restarts SSH Server

Development

• Apps Managed by AppConfig – Display apps that are installed/registered with AppConfig
• cPanel Development Forum – Link to the cPanel Development Forum
• cPanel Plugin File Generator – Creates plugin files
• Manage Hooks – Manage hooks that already exist on your server
• Software Development Kit – Link to the Software Development Kit for cPanel/WHM

WHM official documentation can be found here.