在WHM中，想在nameserver IPs里删掉不要的数据，却老是显示正在删除中，其实停住了，根本没删
解决方法是：
If you are seeing the following message in your cPanel/WHM:
Sorry, the nameserver ip X.X.X.X cannot be removed since it is still registered with an ICANN register.
This is a bug in cPanel/WHM and you will need to disable the ‘ICANN whois check’ via the “Tweak Settings” menu in WHM. Once this is disabled it will allow you to bypass the check and use any IP address for your DNS server(s).
You should do the following:
* Login to your WHM
* On the top left navigation menu click on link for “Tweak Settings”
* Find “Disable whois lookups for the nameserver IP manager” near the bottom of the list. Check the box off and click on “Save” at the bottom of the page.
Once that is done you should be able to modify the settings with no problems.