zonetransfer script

zonetransfer.sh

#!/bin/bash



domain=$1

dns=$(dig $domain ns +noall +additional | grep "IN" -A 100 | awk '{print $1}')

stop=

function fetchAXFR(){

  d=$(dig axfr $1 @$2);

  x=$(echo $d | grep "failed" -q );

  e=$?

  if [[ "$e" == "1" ]]; then
    echo "$d";
  fi
}



for server in $dns; do

  if [[ ! -z "$stop" ]]; then
    exit
  fi

  zone=$(fetchAXFR $domain $server);


  if [[ ! -z "$zone" ]]; then
    echo "$zone";
    stop=1;
  else
    echo "$server does not allow zone transfer";

  fi


done