How to make a minecraft skyblock server 1.7.4?

I want to make a 24/7 minecraft skyblock server for free, but don't know how to.

Colby

First download the server file from minecraft.net

Secondly download the skyblock map and place it in the "world" folder and edit the properties file to open up the exact name of the map

Then port forward the server with a website like http://portforward.com/en…

Then do the finishing touches the website tells you to, invite your friends, and your done

Guest