Install Node.js and NPM on Ubuntu

Install Node.js from Git repository and NPM on  Ubuntu.

Make sure you have the necessary software

sudo apt-get update

sudo apt-get install git-core curl build-essential openssl libssl-dev g++

Install Node.js

git clone https://github.com/joyent/node.git

cd node

git tag (list released versions and select the version you want)

git checkout v0.10.26

./configure

make

sudo make install

node -v (check that node is installed correctly and version matches your choice)

Install NPM

curl -O -L https://npmjs.org/install.sh | sudo sh

npm -v (check that NPM is installed correctly)

Grab a coffee, you're done.