Use netcat to proxy requests

proxy.sh

#!/bin/bash
# From: https://notes.tweakblogs.net/blog/7955/using-netcat-to-build-a-simple-tcp-proxy-in-linux.html

LOCAL_PORT=$1
REMOTE_HOST=$2
REMOTE_PORT=$3 

mkfifo fifo
nc -k -l -p $LOCAL_PORT <fifo | nc $REMOTE_HOST $REMOTE_PORT >fifo
rm fifo