Port Forwarding

port-forwarding.sh

#!/bin/bash

for ((i=1;i<=$#;i++)); 
do
	if [ ${!i} = "-from" ] 
	then ((i++)) 
		from=${!i};

	elif [ ${!i} = "-login" ];
	then ((i++))
		login=${!i};  
	
	elif [ ${!i} = "-to" ];
	then ((i++)) 
		to=${!i};
	fi
done;

if [ -z "$from" ] ; then
	echo ": $0 -from <From Port> -to <To Port> -login <Login>"
	exit 1
fi

echo "Logining in to $login... "
ssh  -nNT -R $to:localhost:$from $login