Problem in the creation of a website

Hi'

I have no-ip server
and web site

and get install successfully!

i can open web site from \ localhost
but my friend can not open web site

* my friend open site from whom no-ip \ host

but not working

/ how my friend can open web site ?

#reportet.
No pusching and double post.
And B2T:
I think you have to put the port 80 into your rooter.

But send host to my frind ?
to open web site?

But send host to my frind ?
to open web site?

But send host to my frind ?
to open web site?