jacksonville on "gethostbyname() has been disabled for security reasons - Line 449"

Hi There,
I am seeing this error on a fresh install of Wordpress Oscar 3.6.
Can anybody possibly shed some light on why this is happening and how to resolve it.

ERROR:

Warning: gethostbyname() has been disabled for security reasons in /home/mydomain/public_html/test/wordpress/wp-includes/http.php on line 449

Thanks

Screengrab as well here: http://postimg.org/image/tnvzuix4x/