#meteorj

First create a user different than root

Then follow this https://www.digitalocean.com/community/articles/how-to-install-node-js-with-nvm-node-version-manager-on-a-vps

For meteor, follow this https://github.com/oortcloud/meteorite

and then curl https://install.meteor.com | /bin/sh

Here is a quick an dirty redirect to port 80 : 

sudo iptables -t nat -A PREROUTING -i eth0 -p tcp --dport 80 -j REDIRECT --to-port 3000