STEP1: install dependencies and compile tools.
yum install libtool automake autoconf gcc-c++ openssl-devel
STEP2: download node.js package, tar and make install.
wget http://nodejs.org/dist/v0.10.26/node-v0.10.26.tar.gz
tar -zvxf node-v0.10.26.tar.gz
make && make install
STEP3: Check if nodejs and npm have been installed.
node -v
npm -v
STEP4: install express
npm install -g express-generator
Quit to set up node.js on centos6
原文：http://www.cnblogs.com/ipup/p/4739052.html