Domain name substituion in multisite.

Hello team.

What is the best way to have
a specific domain name show in the browser bar
for a particular multisite blog landing home page?

The main multisite is : solutionpartelecharge.com
The particular blog name is : encapsulationporeuse.com

Currently the landing home page url shows: http://encapsulationporeuse.solutionpartelecharge.com/

and want that landing home page to show the http://www.encapsulationporeuse.com

I have created the redirection in my web hosting cpanel to have encapsulationporeuse.com direct to http://encapsulationporeuse.solutionpartelecharge.com/
That works.

Now I want http://encapsulationporeuse.solutionpartelecharge.com/
to simply show
as http://www.encapsulationporeuse.com.

What do I need ?
is it doable?
Rob

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