How to connect to Raspberry Pi?

Question

linux

Hello.
I set up raspberry via ssh, Raspbian is there. IP looked in the raspberry router.
So the question is, how to connect to raspberries, if not at home, but elsewhere?
For example, on Windows there is temviewer. It seems that under Linux it is, but at the moment it does not interest me. Thank you!
And then the 2nd question, for example, I raised a web server on a raspberry, washed down a couple of HTML pages. I have a purchased domain, how can I make raspberries look like hosting? What do you advise?

Answer 1

What for the first, what for the second you need an external IP address or port forwarding in the router (in particular, 22nd for ssh, remote control)

Answer 2

As option to configure VPN.