Fix resolver from VPN and others software for Mac OS X and uid-root only.

dns.sh

#!/bin/bash
# --------------------------------
# Description: scutil - fix resolver from VPN clients (Mac OS X and uid-root/sudo)
# Author: God <god@whitehats.net>
# WWW: whitehat.ro / whitehats.net
# --------------------------------
# Mar 23 Ian 2018 00:33:59 EET - first release

dns="185.220.184.184"

comanda=$(scutil <<EOF
open
list
quit
EOF)

variabile=$(echo -en "$comanda\n"|grep State|grep "/DNS"|awk '{print $4}')

for i in $variabile
do
echo "Modificare nameserver: $i, catre: $dns."
scutil <<FINAL
open
d.init
d.add ServerAddresses * $dns
set $i
quit
FINAL
done

networksetup -setdnsservers Wi-Fi $dns