redirect-port-80-to-8080

#!/usr/bin/env bash
#
# Make your server get traffic from port 80 without having to run it with sudo privilege.
# Based on: Running Jenkins on Port 80 or 443 using iptables
# https://wiki.jenkins.io/display/JENKINS/Running+Jenkins+on+Port+80+or+443+using+iptables

# allow traffic on ports 80 and 8080
sudo iptables -I INPUT 1 -p tcp --dport 80 -j ACCEPT
sudo iptables -I INPUT 1 -p tcp --dport 8080 -j ACCEPT

# redirect traffic from port 80 to port 8080
sudo iptables -A PREROUTING -t nat -p tcp --dport 80 -j REDIRECT --to-port 8080

# persist rules after reboot
sudo apt-get install iptables-persistent