Port forward from port 9000 to port 80 on an Ubuntu machine using IPtables (exposing Sonar on port 80)

ubuntu_port_forwarding.md

Setting up port for re-routing requests: ex. req to port: 8080 -> port 9000

• iptables -A PREROUTING -t nat -i eth0 -p tcp --dport 80 -j REDIRECT --to-port 9000
• iptables-save

Example:

sudo iptables -A PREROUTING -t nat -i eth0 -p tcp --dport 80 -j REDIRECT --to-port 4776

sudo iptables -A PREROUTING -t nat -i eth0 -p tcp --dport 443 -j REDIRECT --to-port 4776

sudo iptables-save

list the current firewall rules

• iptables --table nat --list

or using the options short form

• iptables -t nat -L

copy file to path using ssh

• scp -i security.pem /path-to-file instance.route.amazonaws.com:~/home-folder

checking active connections

• netstat -t -u -c