Install Node.js and NPM from source

nodejs_install.sh

# Install dependencies (these are for Fedora, adapt to your distro)
# gcc-c++ make glibc-devel openssl openssl-devel

# Make a temporary working dir
mkdir nodebuild
cd nodebuild

# Download latest node.js source
wget http://nodejs.org/dist/node-latest.tar.gz

# Untar
tar -xvpzf node-latest.tar.gz

# Build
cd node-v*
./configure
make 
sudo make install

# Install npm
wget http://npmjs.org/install.sh
sudo bash install.sh

# In Fedora it throws an error when trying to run npm with sudo, this is due to the secure
# path setting in /etc/sudoers. To solve it edit the sudoers file and add /usr/local/bin
# and /usr/local/sbin to the allowed path.
#
# Look for the line  "Defaults    secure_path = /sbin/..." and add the corresponding paths.
#
# It should look like...
#
# Defaults    secure_path = /sbin:/bin:/usr/sbin:/usr/bin:/usr/local/bin:/usr/local/sbin