Automatic tunnel for Mac OSX

osx-tunnel.sh

#!/bin/bash

function enable_proxy {
  echo "Enabling SOCKS proxy to localhost:8080"
  networksetup -setsocksfirewallproxy wi-fi localhost 9999
}

function disable_proxy {
  echo "Disabling SOCKS proxy"
  networksetup -setsocksfirewallproxystate wi-fi off
  exit 0
}

trap "disable_proxy" SIGINT

enable_proxy
ssh -Nv -D 9999 your_server