need help at root

Guys i need help when i buy VPN(Dedicted server) for my sro private server how to install it???

don't tell me google it i googled it and found nothing please help!!

Edit: i mean after i put it how to activate it

u shoudln't think about buyin one if u don't know how to install it

yes after i buy one it gives me username and password now what to do??