FreeBSD
This guide is for FreeBSD 10.1-RELEASE. It should work, with slight modifications, for all other relatively modern versions.
Make sure you are up to date, by running:
freebsd-update fetch
freebsd-update install
Install Redis:
pkg install redis
Follow the regular steps to run Redis at the runlevel, and start it.
Install gcc5:
pkg install gcc5
Install Node:
pkg install node
Clone NodeBB repo (this assumes you have git installed, otherwise use pkg to install it):
git clone -b v2.x https://github.com/NodeBB/NodeBB.git
Enter directory:
cd nodebb
Run interactive installation:
./nodebb setup
You may leave all of the options as default.
You are finished! After the installation, run:
./nodebb start
Visit your forum at http://FQDN:4567/
to finish configuration and
setup. FQDN is the server fully qualified domain name.