DNS spoof detector

#!/usr/bin/env bash
# Written by kenkeiras

if [ "$2" == "" ]
    then
        echo "$0 <dirección a resolver> <DNS>"
        exit 1
    fi


echo -n "Velocidad: ";((time ping -c 1 "$2" >> /dev/null) 2>> /dev/stdout )|head -n 2|tail -n 1|cut -f2
echo -n "DNS: ";((time nslookup "$1" "$2" >> /dev/null) 2>> /dev/stdout )|head -n 2|tail -n 1|cut -f2