How to setup 2 network adress on 1 domain??

[nr1baby]

Hi I´m new here and I am a student studying IT supporting and networking so still learning alot. I was wondering if any one can show me how I can set up 2 or 3 network adress on a single domain or is that even possible. For example I have a domain name domain.local. Office 1 has 192.168.100.1-254, Office 2 has 192.168.150.1-254 and office 3 has 192.168.200.1-254. How do I set it up? Hoping someone can give a helping hand.
Thanks in advance.

 

[nobaloney]

You can't do it through the DirectAdmin control panel. If you're not asking about DirectAdmin, then you're probably in the wrong forum.

Jeff