#!/bin/bash
if [ -z "$1" -o "$1" == " " ]; then
        echo "usage: add_new_host.sh <hostname>"
        echo "EXAMPLE: add_new_host.sh myhost will add myhost.dyn.mydomain.ch"
        exit 1
fi
cd /etc/bind/dyn/
hostname=${1}.dyn.mydomain.ch.
echo "generating key for ${hostname}"
key=$(tsig-keygen -a hmac-md5 ${hostname})
echo "here is the HMAC-MD5 key i have generated, use this to configure your client:"
echo "-----------------8<--------------"
echo "${key}" | grep "secret" | awk -F '"' '{print $2}'
echo "-----------------8<--------------"
echo "add key to bind config"
echo $(echo "$key" | tr -d "\r\n") >> keys.conf
echo "reload bind";
/usr/sbin/rndc reload
echo "currently active hosts:"
grep "key " keys.conf | awk '{ print $2; }' | tr -d ";"