url rewrite for subdomain in multisite

Hi I have a multisite and a wish to use a specific external url for one of my subdomain
Ex: http://www.main.com/site11
and I want that http://www.second.com point on http://www.main.com/site11 and http://www.main.com/site11 is rewrite in http://www.second.com in db, in visualizzation and seo.

How Can I do this?

With alias function https://documentation.cpanel.net/display/ALD/Aliases# ?