how to use localtunnel gem ?

Hi all,

I read about localtunnel gem . As per my knowledge , local tunnel generate a URL , which can be used globally .

I wish to use localtunnel for my knowledge.

But now my question is raised .

Q is we have to start rails server port 3000 on another terminal ? or localtunnel server is enough for our development server which we

have already started on 3000 port ?.

Q Can any one tell me advantage of localtunnel gem ?

Thanks

Regards

Fahim Babar Parel