I need remote login/ ssh/ whatever
 

I need to know how to be able to remotely login to a computer that will be running linux....

also what port does ssh use?

From a Windows box or...?

i have a linux and windows box (I'd prefer my linux box though)

From a shell type:

ssh user@domainname

ssh has more options but thats the basic syntax. Check out the man pages for more details. SSH uses port 22 by default. If you need to ssh to a linux machine from windows check out putty.

for security reasons i suggest public key authentification with ssh!

so will ssh user@(IP) work also?

thank you so much it's so simple!

Yes that will work as well.