How to brows files on a linux computer on network with finder ?

I have recently changed the OS of my old PC I made from junk , which I use as a file storage place, and an emergency computer if ever my Mac which is my primary computer is not available at hand. I used to have windows XP on it , but now it is running Linux (Elementary OS Freya) a Ubuntu build that has a similar look and feel to OSX. How do I access this computer now from the finder ? On the ex-windows now linux machine, I can see and access my Mac, but how do I access the Linux machine from my mac , since my mac is a Macbook , and the PC is stationary at home , and its easier to access the PC via the Macbook Pro, since the Macbook pro is a portal computer and not a heavy clunker that sits in the corner like the PC.

I know when the pc ran windows, i would type "smb://" in find server dialogue from finder, is it the same ?