Node Socket On ASW

//Open Ports on AWS
1->First Allow All TCP rules from anywhere
2->and Open port 80

//Now port forwading
1->sudo vim /etc/systctl.conf ==>enter
2->uncomment net.ipv4.ip_forward = 1    //line 28
3->save

1->sudo sysctl -p /etc/sysctl.conf      // for activate the changes

1->sudo iptables -t nat -A PREROUTING -p tcp --dport 80 -j REDIRECT --to-ports 3000  //This is port forwading
2->sudo iptables -A INPUT -p tcp -m tcp --sport 80 -j ACCEPT //Configure firewall to allow port 80 forwading(input)
3->sudo iptables -A OUTPUT -p tcp -m tcp --dport 80 -j ACCEPT //Configure firewall to allow port 80 forwading(output)


//For saving changes else after restart above rules will be vaished
sudo apt-get update
sudo apt-get install iptables-persistent


sudo bash -c "iptables-save > /etc/iptables.rules.v4" ==>enter 

//Lets make auto-start script
sudo ap-get install upstart
cd /etc/init/
sudo vim appName.conf
//////////////////////////
description "about our app"

start on started mountall
stop on shutdown
respawn
respawn limit 99 5
env NODE_ENV=production

exec node /home/ubuntu/appName/app.js >> /var/log/appName.log 2>&1
/////////////////////////(save)

sudo start appName