INSIDE app.js and ./public/chat.js/ respectively
i) Replace 10th Line i.e. "var port=3000" according to the port you are using.
ii) Replace the variable "ipaddr" (line 1) and "port" (line 2) according to your need. Here, we have, ipaddr=127.0.0.1 and port=3000 that is we are running on local host.
TERMINAL
# git clone http://github.com/rajranjan0608/pesrsonalChat
# cd personalChat
# npm install
# service mongodb start (You have to keep running MongoDB on your machine to store and retreive messages and user.)
# node app.js
WEB BROWSER
PASTE IN THE URL BAR: localhost:3000 OR <your_ip_address>:<your_port>
No one cares, bitch!