#!/bin/sh set -eu cmd="pfctl -f /etc/pf.conf" read -p "Run this command (y/n)? $cmd " answer if [ "$answer" = "y" ]; then (set -x; $cmd) else exit 0 fi cmd="service pf restart" read -p "Run this command (y/n)? $cmd " answer if [ "$answer" = "y" ]; then (set -x; $cmd) else exit 0 fi timeout=60 echo "Running safety timeout ($timeout seconds). Press CTRL-C if everything is working." while [ $timeout -gt 0 ] do sleep 1 timeout=$((timeout - 1)) echo -n "." done echo "Timeout reached. Enabling empty pf rules" set -x mv /etc/pf.conf /etc/pf.conf.locked_out echo "" > /etc/pf.conf pfctl -f /etc/pf.conf service pf restart