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Allow users to park subdomains of the server's hostname

This setting allows users to park subdomains on your server’s main domain.

For example, this setting has the following impact on the example.com server:

• If you select On, a cPanel user could successfully create the subdomain.example.com alias.
• If you select Off, a cPanel user would receive an error message if they attempt to create the subdomain.example.com alias.

This setting defaults to Off.

Allow cPanel users to create subdomains across accounts

This setting allows a user to create an addon domain or subdomain of a domain that another user owns.

For example, if the user bob owns the domain example.com, the user charlie can create the store.example.com subdomain.

This setting defaults to Off.

Allow WHM users to create subdomains across accounts

This setting allows WHM users to create an addon domain or a subdomain of a domain that another user owns.

For example, if the user bob owns the domain example.com, the WHM user charlie can create an account for the store.example.com subdomain.

This setting defaults to Off.

Allow Remote Domains

This setting allows users to create parked domains (aliases) and addon domains that resolve to other servers.

This setting defaults to Off.

Allow resellers to create accounts with subdomains of the server's hostname.

This setting allows resellers to create accounts with subdomains of your server’s main domain.

For example, if your main domain name is example.com, enable this setting to redirect user.example.com visitors to the reseller’s website.

This setting defaults to Off.

Allow unregistered domains

This setting allows users to create domain names on the server that they do not register with a valid registrar.

This setting defaults to Off.

Automatically add A entries for registered nameservers when creating a new zone

This setting specifies whether the system automatically creates A entries for a new domain's registered nameservers when a user creates a domain.

This setting defaults to On.

Replace SSL certificates that do not match the local hostname

This setting instructs the checkallsslcerts script to replace any SSL certificates that do not match the hostname of the server with a cPanel-signed certificate. This includes wildcard certificates.

This setting defaults to On.

Prevent cPanel users from creating specific domains

This setting prevents the creation of certain domains with domain names that the /var/cpanel/commondomains file contains.

If you enable this setting, cPanel users cannot create (as an addon or parked domain) any domain that the /var/cpanel/commondomains file or the /usr/local/cpanel/etc/commondomains file contains.

Check zone syntax

This setting allows you to have the system automatically check zone file syntax whenever a user saves or synchs DNS zone files.

This setting's value defaults to On.

Check zone owner

This setting allows you to have the system automatically check a DNS zone’s owner whenever a user saves or synchs DNS zone files.

This setting defaults to On.

Enable DKIM on domains for newly created accounts

DKIM (DomainKeys Identified Mail) verifies a message's sender and integrity. It allows an email system to prove that a message is valid, not forged, and that it came from the specified domain.

This setting allows you to specify whether to enable DKIM for new accounts by default.

This setting defaults to On.

Enable SPF on domains for newly created accounts

SPF (Sender Policy Framework) denies spammers the ability to send email when they forge your domain’s name as the sender (spoofing). This authentication function adds IP addresses to a list of computers that you authorize to send mail from your domain name. It verifies that messages that your domain sends come from the listed sender, which reduces the amount of backscatter that you receive.

This setting allows you to specify whether to enable SPF for new accounts by default.

This setting defaults to On.

DNS request management application

This setting specifies the application that the system uses to handle DNS management requests. 

To specify a new application, enter the path to the application that you wish to use in the text box.

This setting defaults to dnsadmin, auto-detect SSL.

Proxy subdomains

This setting allows users to access cPanel & WHM services from standard HTTP ports, such as Port 80 and Port 443. This setting is useful if users cannot access the standard cPanel & WHM ports due to firewall restrictions.

If you enable this setting, the system automatically redirects visitors to the correct port when they access the following subdomains:

• cpanel.example.com redirects to the user's cPanel Home Interface.
• webmail.example.com redirects to the user's Webmail interface.
• webdisk.example.com redirects to the user's Web Disk.
• whm.example.com redirects to the user's WHM interface.

This setting defaults to On.

Proxy subdomain creation

Proxy subdomains allow users to reach particular interfaces within cPanel or WHM when they enter a subdomain in a browser. For example, a user who enters cpanel.example.com reaches example.com's cPanel Home Interface.

This setting allows WHM to automatically create DNS entries for the following subdomains for every user’s account:

• cpanel.example.com
• webmail.example.com
• webdisk.example.com
• whm.example.com

This setting defaults to On.

Thunderbird and Outlook autodiscover and autoconfig support (enables proxy subdomain and SRV record creation)

This setting automatically creates autodiscover and autoconfig proxy subdomains when you create a domain.

• autoconfig.example.com
• autodiscover.example.com

This setting also creates the  autodiscover and autoconfig  SRV records that local domains need for Outlook and Thunderbird email autoconfiguation.

This setting defaults to Off.

For more information about Autodiscover and AutoConfig, visit the TechNet for Autodiscover and Mozilla's AutoConfig websites.

Overwrite custom A records used for proxy subdomains

This setting allows the system to remove any existing custom A records that match proxy subdomains that you create or remove.

This setting defaults to Off.

Overwrite custom SRV records used by Outlook AutoDiscover support

This setting allows the system to remove any existing custom SRV records whenever the user adds or removes Outlook Autodiscover support.

This setting defaults to Off.

Proxy subdomain override

This setting allows users to create cPanel, Webmail, Web Disk, and WHM subdomains that override automatically generated proxy subdomains.

For example, a user can direct visitors who access cpanel.example.com to a web page that the user configures, such as mycontrolpanel.example.com.

This setting defaults to On.

Restrict document roots to public_html

This setting prevents the creation of addon domains and subdomains outside of a cPanel user's primary domain's document root (the public_html directory within the user's /home directory). 

 For example, if you enable this setting and then create the example.com addon domain, the system creates the /home/username/public_html/example.com directory rather than the /home/username/example.com directory.

This setting defaults to On.

Always use authoritative (registered) nameservers when creating a new DNS zone.

This setting allows the server to use a new domain's authoritative nameservers (the nameservers on record with the domain's registrar). The server does not use the nameservers that domain's creator specified.

This setting defaults to Off.

Use a Global DCV rewrite exclude instead of .htaccess modification (requires Apache 2.4 and EasyApache 4)

This setting allows Apache to use global mod_rewrite rules instead of .htaccess modification. These rules no longer require cPanel & WHM to modify each user's .htaccess file. 

EasyApache 4, with Apache 2.4, must be installed for this option to display in the Tweak Settings interface. 

This setting defaults to Off.

You can enable the Global DVC Excludes setting through the Tweak Settings interface, or through the command line with the following command: 

whmapi1 set_tweaksetting key=global_dcv_rewrite_exclude value=1