SSH tunneling using sshuttle

sshuttle.sh

#!/bin/bash

user='username'
serv='servername'

echo "Connecting to $serv ..."

sshuttle --dns --daemon -r $user@$serv 0/0
ssh_cmd_return=$?

if [[ $ssh_cmd_return != 0 ]]; then
    echo -e "\033[31mConnection failed for $user@$serv\033[0m"
    echo "Error : [$ssh_cmd_return] when executing command."
    exit $ret_code
else
    echo -e "\033[32m$user@$serv connected\033[0m"
fi