To register new nameserver

Step 1: register nameservers

to contact your domain provider for 'skybizglobal.com' to register nameservers and assign ips for

- 'ns03.skybizglobal.com'

- 'ns04.skybizglobal.com'

this you can do it in domain provider domain management tools.

You can checked the site and you could see that the nameservers Ns03.skybizglobal.com and ns04.skybizglobal.com are registered.

===============
https://reports.internic.net/cgi/whois?whois_nic=Ns03.skybizglobal.com&type=nameserver
https://reports.internic.net/cgi/whois?whois_nic=ns04.skybizglobal.com&type=nameserver
===============

Step 2: modify the DNS

to contact your nameserver provider for 'ns01.skybizglobal.com' and 'ns02.skybizglobal.com', so that you may modify the DNS for the child nameservers for the following:
- 'ns03.skybizglobal.com'
- 'ns04.skybizglobal.com'

Please also create A entry for the namservers Ns03.skybizglobal.com and ns04.skybizglobal.com to point the IP 101.99.64.73. IT will fix the issue for the nameservers. 

Step 3: to update nameserver in WHM > Basic cPanel & WHM Setup > Nameservers & Assign IP address

notes:

As we checked just have 2 IP. Please be informed if you require the ns5 and ns6 you need to have additional IP.