搭建DNS服务器的脚本出错，请大家指点一下错在哪啊？

写了一个自动搭建DNS服务器的脚本，老是报错，查了半天也没看出哪里错了，请大家帮忙看看错在哪里？

平台RHEL6.2

报错信息：

Starting named: 

Error in named configuration:

zone localhost.localdomain/IN: loaded serial 0

zone localhost/IN: loaded serial 0

zone 1.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.ip6.arpa/IN: loaded serial 0

zone 1.0.0.127.in-addr.arpa/IN: loaded serial 0

zone 0.in-addr.arpa/IN: loaded serial 0

dns_rdata_fromtext: example.com.zone:2: unexpected token

dns_master_load: example.com.zone:8: syntax error

dns_master_load: example.com.zone:8: isc_lex_gettoken() failed: unbalanced quotes

dns_master_load: example.com.zone:8: unbalanced quotes

zone example.com/IN: loading from master file example.com.zone failed: unexpected token

zone example.com/IN: not loaded due to errors.

_default/example.com/IN: unexpected token

zone 80.168.192.in-addr.arpa/IN: loaded serial 0

[FAILED]



脚步原文如下：

#!/bin/bash

# Just need to reset variable "MYIP" and "MYDOMAIN" to yourself.



MYIP="192.168.80.6"

MYDOMAIN="example.com"



#--------------------------------------

# Don't change anything in the below, 

# unless you know what you are doing.





#--------------------------------------

# Install Packages.

#--------------------------------------

yum -y install bind bind-chroot





#--------------------------------------

# Modify "/etc/named.conf" 

#--------------------------------------

sed -i 's/127.0.0.1;/any;/g' /etc/named.conf

sed -i 's/localhost;/any;/g' /etc/named.conf





#--------------------------------------

# Modify "/etc/named.rfc1912.zones"

#--------------------------------------

grep "$MYDOMAIN" /etc/named.rfc1912.zones > /dev/null

if [ $? -ne 0 ]; then

cat >> /etc/named.rfc1912.zones << _EOF_

zone "$MYDOMAIN" IN {

        type master;

        file "$MYDOMAIN.zone";

        allow-update { none; };

};

zone "$(echo $MYIP | awk -F"." '{print $3"."$2"."$1}').in-addr.arpa" IN {

        type master;

        file "$(echo $MYIP | awk -F"." '{print $1"."$2"."$3}').zone";

        allow-update { none; };

};

_EOF_

fi





#--------------------------------------

# Create forward and backward resolve file

#--------------------------------------

/bin/cp -p /var/named/named.localhost /var/named/"$MYDOMAIN".zone

/bin/cp -p /var/named/named.localhost /var/named/"$(echo $MYIP | awk -F"." '{print $1"."$2"."$3}')".zone



cat > /var/named/"$MYDOMAIN".zone << _EOF_

\$TTL 1D

@   IN SOA  "$MYDOMAIN". rname.invalid. (

                                        0   ; serial

                                        1D  ; refresh

                                        1H  ; retry

                                        1W  ; expire

                                        3H )    ; minimum

                NS      "$MYDOMAIN".

$MYDOMAIN.      A       $MYIP

www             A       $MYIP

ftp             A       $MYIP

$MYDOMAIN.      MX 5    mail.$MYDOMAIN.

mail            A       $MYIP

_EOF_



cat > /var/named/"$(echo $MYIP | awk -F"." '{print $1"."$2"."$3}')".zone << _EOF_

\$TTL 1D

@ IN SOA  $MYDOMAIN. rname.invalid. (

                                        0   ; serial

                                        1D  ; refresh

                                        1H  ; retry

                                        1W  ; expire

                                        3H )    ; minimum

        NS      $MYDOMAIN.

76      PTR     $MYDOMAIN.

76      PTR     www.$MYDOMAIN.

76      PTR     ftp.$MYDOMAIN.

76      PTR     mail.$MYDOMAIN.

_EOF_





#--------------------------------------

# Modify "/etc/resolv.conf"

#--------------------------------------

cat > /etc/resolv.conf << _EOF_

search $MYDOMAIN

nameserver $MYIP

_EOF_





#--------------------------------------

# Restart DNS service

#--------------------------------------

/etc/init.d/named restart