DNS Master Service bring up

OPERATION ENVIRONMENT
*******************************

OS: Linux CentOS-59
Bind version: BIND 9.3.6-P1-RedHat-9.3.6-20.P1.el5_8.5
(Bind imbedded within CentOS-59)

CONDITION:
**************
1- Two different Domain

clear.net.nz
example.com

2- Two different FQDN mapping IP 10.11.0.1 & 10.11.0.2

digihost.clear.net.nz        -->  10.11.0.1
digihost.usr.clear.net.nz  --> 10.11.0.2

digihost.example.com      --> 10.11.0.1
dhweb.example.com        --> 10.11.0.2

PROCEDURE:
***************

Establish following 4 files on each path as below right side.

named.conf (744)  --> path: /var/named/chroot/etc/
named.10.11.0                     --> path: /var/named/chroot/var/named/
named.example.com            --> path: /var/named/chroot/var/named/
named.clear.net.nz               ---> path: /var/named/chroot/var/named/

# vi named.conf


# vim named.10.11.0

~~~~ CONTENT START ~~~~

$TTL    86400
@       IN      SOA     digihost.example.com. dhweb.example.com. (
                                        2013080800      ; serial (d. adams)
                                        28800                ; refresh
                                        14400                ; retry
                                        691200              ; expiry
                                        86400 )              ; minimum
@       IN      NS      digihost.example.com.
;
$ORIGIN 0.11.10.in-addr.arpa.
;
1       IN      PTR     digihost.example.com.
2       IN      PTR     dhweb.example.com.

~~~~ CONTENT END ~~~~
                               

# vim named.clear.net.nz

~~~~ CONTENT START ~~~~

$TTL    86400
@       IN      SOA     digihost.clear.net.nz. digihost.usr.clear.net.nz. (
                                        2013080800      ; serial (d. adams)
                                        28800                ; refresh
                                        14400                ; retry
                                        691200              ; expiry
                                        86400 )              ; minimum
;
                        IN      TXT     "A test domain, clear.net.nz., created by MTT."
                        IN      NS       digihost
                        IN      A         10.11.0.1
;
$ORIGIN clear.net.nz.
;
localhost          IN   A           127.0.0.1
;
digihost           IN    A           10.11.0.1
digihost.usr     IN   A           10.11.0.2

~~~~ CONTENT END ~~~~
# vim named.example.com

~~~~ CONTENT START ~~~~

$TTL    86400
@       IN      SOA     digihost.example.com. dhweb.example.com. (
                                        2013080800      ; serial (d. adams)
                                        28800                ; refresh
                                        14400                ; retry
                                        691200              ; expiry
                                        86400 )              ; minimum
;
        IN      TXT     "A test domain, example.com., created by Lu."
        IN      NS      digihost
        IN      A       10.11.0.1
;
$ORIGIN example.com.
;
localhost  IN   A       127.0.0.1
;
digihost   IN   A       10.11.0.1
dhweb      IN   A       10.11.0.2

~~~~ CONTENT END ~~~~



Have soft-link for 3 files of named.10.11.0, named.clear.net.nz & named.example.com on path: /var/named

# ln -s /var/named/chroot/var/named/named.10.11.0
# ln -s /var/named/chroot/var/named/named.clear.net.nz
# ln -s /var/named/chroot/var/named/named/example.com


Reload DNS

# service named restart


TROUBLESHOOTING
***********************

1- If got a error event after restart the DNS
--> Locating /var/named/chroot//etc/named.conf failed:
-->                                                                                     [FAILED]

means there is something wrong with named.conf.
check the path where located named.conf.
previous Bind version is /etc/named.conf, and current correct one is /var/named/chroot/etc/named.conf.







EXTRA CONFIGURATION for reference

***********************************************************************
options {
        directory "/var/named";
        dump-file "/var/named/data/cache_dump.db";
        statistics-file "/var/named/data/named_stats.txt";
};

controls {
        inet 127.0.0.1 allow { localhost; } keys { rndckey; };
};

zone "." IN {
        type hint;
        file "named.ca";
};

zone "localdomain" IN {
        type master;
        file "localdomain.zone";
        allow-update { none; };
};

zone "localhost" IN {
        type master;
        file "localhost.zone";
        allow-update { none; };
};

zone "0.0.127.in-addr.arpa" {
        type master;
        file "named.local";
        allow-update { none; };
};

zone "0.11.10.in-addr.arpa" {
        type master;
        file "named.10.11.0";
        allow-update { none; };
};

zone "example.com" {
        type master;
        file "named.example.com";
};

zone "clear.net.nz" {
        type master;
        file "named.clear.net.nz";
};

include "/etc/rndc.key";
===========================================