Problem creating parked domain

In addition to or as an alternative to toggling the referenced Tweak Settings option, it is possible to set third-party DNS/name server IP addresses to be seen as local; this may be useful if you know the third-party DNS/name servers already point to the correct server where you are adding the new parked or add-on domain.

Starting in cPanel version 11.25, a custom list of remote service IP addresses may be configured using WHM via the following menu path:
WHM: Main >> IP Functions >> Configure Remote Service IPs >> Remote DNS IPs
The custom list of remote DNS IP addresses is saved in the following file:

Code:

/etc/ips.remotedns

Moderator Note: Please remember to keep the discussion on-topic; the quoted text was simply copied verbatim from WHM Tweak Settings as accessed via the following menu path: WHM: Main >> Server Configuration >> Tweak Settings

For reference purposes, adding a parked or add-on domain not only creates an Apache virtual host but it also enables e-mail. Depending on the server configuration, including the configured mail routing setting, it is possible for a user to (inadvertently or maliciously) setup a domain that they do not own in attempt to hijack traffic to the domain. One possible example may involve hijacking local outbound e-mails to the domain; however, this also depends on the mail routing configuration used (e.g., such as what can be configured via cPanel >> Mail >> MX Entry).

For in-depth security discussions I recommend referring to the following forums area: cPanel and WHM Security - cPanel Forums