#!/bin/bash
# zoneadd: a simple script to create Bind9 zone files (currently master or slave) and update Bind9 config file
# Copyright (C) 2006 Jean-Francois Hovinne - http://www.hovinne.com/

# This program is free software; you can redistribute it and/or modify 
# it under the terms of the GNU General Public License as published by 
# the Free Software Foundation; either version 2 of the License, or 
# (at your option) any later version.

# This program is distributed in the hope that it will be useful, 
# but WITHOUT ANY WARRANTY; without even the implied warranty of 
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the 
# GNU General Public License for more details: http://www.gnu.org/licenses/gpl.txt.

# USAGE: zoneadd yourdomain.tld
# Before using this script, you'll need to customize values below.
# The script will behave differently depending on ZONETYPE value.

#CUSTOM VALUES
TARGETDIR="/etc/bind/master"				# dir where zone file will be stored
NAMEDCONFIGFILE="/etc/bind/named.conf.local"		# Bind configuration file
ZONETYPE="master"					# zone type (master or slave)

SOA="ns1.yourdomain.tld"				# default SOA
HOSTMASTER="hostmaster.yourdomain.tld"			# default hostmaster
NS1="ns1.yourdomain.tld"				# default NS1
NS2="ns2.yourdomain.tld"				# default NS2

DEFAULTMAIL="mx1.yourdomain.tld"			# default mail host
DEFAULTFTP="www.yourdomain.tld"				# default ftp host
DEFAULTWWW="www.yourdomain.tld"				# default www host
MASTERS="192.168.0.1;"					# master ns hosts (if slave)
#END CUSTOM VALUES

#INIT
ZONE=$1
FILE="$TARGETDIR/$ZONE"
DATE=`date +%Y%m%d`

#ADD ZONE TO CONFIG FILE

if [ "$ZONETYPE" == "master" ]
then
	echo "zone \"$ZONE\" IN {" >> $NAMEDCONFIGFILE
	echo "	type master;" >> $NAMEDCONFIGFILE
	echo "	file \"$FILE\";" >> $NAMEDCONFIGFILE
	echo "	};" >> $NAMEDCONFIGFILE
	echo "Added zone $ZONE to config file."
else
	echo "zone \"$ZONE\" IN {" >> $NAMEDCONFIGFILE
	echo "	type slave;" >> $NAMEDCONFIGFILE
	echo "	file \"$FILE\";" >> $NAMEDCONFIGFILE
	echo "	masters	{ $MASTERS };" >> $NAMEDCONFIGFILE
	echo "	};" >> $NAMEDCONFIGFILE
	echo "Added zone $ZONE to config file."
	exit
fi

#CREATE ZONE FILE

echo "; Zone file for $ZONE, created $DATE" >> $FILE

echo "\$TTL	86400" >> $FILE
echo "@	IN	SOA	${SOA}. ${HOSTMASTER}. (" >> $FILE
echo "			${DATE}01	; Serial" >> $FILE
echo "			21600		; Refresh" >> $FILE
echo "			3600		; Retry" >> $FILE
echo "			604800		; Expire" >> $FILE
echo "			21600 )	; Negative Cache TTL"  >> $FILE

echo "@	IN	NS	${NS1}." >> $FILE
echo "@	IN	NS	${NS2}." >> $FILE

echo "	IN	MX	10	${DEFAULTMAIL}." >> $FILE

echo "mail	IN	CNAME	${DEFAULTMAIL}." >> $FILE
echo "ftp	IN	CNAME	${DEFAULTFTP}." >> $FILE
echo "www	IN	CNAME	${DEFAULTWWW}." >> $FILE

echo "Zone $ZONE created with default values."

read -s -n1 -p "Do you want to edit it (y/n) ? " REP
echo

if [ "$REP" == "y" ]
then
	exec nano $FILE
fi