DNS configuration for RHEL5

                                                                     
                                             
			DNS ( Domain Name Server )
                   ##############################################

[root@desktop18 ~]# yum install caching-name*  bind* -y 

[root@desktop18 ~]# cd /var/named/chroot/etc/
[root@desktop18 ~]# cp -p  named.caching-nameserver.conf  named.conf 

[root@desktop18 ~]# vim  named.conf 

 #######################################################################
               Configure file  and add  zone  
 #######################################################################
//

// named.caching-nameserver.conf

//

// Provided by Red Hat caching-nameserver package to configure the

// ISC BIND named(8) DNS server as a caching only nameserver 

// (as a localhost DNS resolver only). 

//

// See /usr/share/doc/bind*/sample/ for example named configuration files.

//

// DO NOT EDIT THIS FILE - use system-config-bind or an editor

// to create named.conf - edits to this file will be lost on 

// caching-nameserver package upgrade.

//

options {

	listen-on port 53 { 127.0.0.1; 192.168.0.10 ; };

	listen-on-v6 port 53 { ::1; };

	directory 	"/var/named";

	dump-file 	"/var/named/data/cache_dump.db";

        statistics-file "/var/named/data/named_stats.txt";

        memstatistics-file "/var/named/data/named_mem_stats.txt";



	// Those options should be used carefully because they disable port

	// randomization

	// query-source    port 53;	

	// query-source-v6 port 53;



	allow-query     { localhost; any; };

	allow-query-cache { localhost; any; };

};

logging {

        channel default_debug {

                file "data/named.run";

                severity dynamic;

        };

};

view localhost_resolver {

	match-clients 	   { localhost; any; };

	match-destinations { localhost; any; };

	recursion yes;

zone "3.10.10.in-addr.arpa" IN {

        type master;

        file "rev.zone";

        allow-update { none; };

};

zone "example.com" IN {

        type master;

        file "fwd.zone";

        allow-update { none; };

};

	include "/etc/named.rfc1912.zones";

};


    ############################################################
                  add Zone File in Path
    ############################################################

[root@desktop18 ~]# cd /var/named/chroot/var/named
[root@desktop18 ~]# cp -p  named.local  rev.zone 
[root@desktop18 ~]# cp -p localhost.zone fwd.zone
[root@desktop18 ~]# vim rev.zone
$TTL	86400
@       IN      SOA     root.example.com. root.example.com.  (
                                      1997022700 ; Serial
                                      28800      ; Refresh
                                      14400      ; Retry
                                      3600000    ; Expire
                                      86400 )    ; Minimum
@        IN      NS      ns1.example.com.
@       IN      NS       ns2.example.com.
10	IN	PTR	mail1.example.com.
11	IN	PTR	mail2.example.com.


[root@desktop18 ~]# vim fwd.zone
$TTL	86400
@		IN SOA	root.example.com.       root.example.com. (
					42		; serial (d. adams)
					3H		; refresh
					15M		; retry
					1W		; expiry
					1D )		; minimum
@	        	IN NS		ns1.example.com.
@			IN NS		ns2.example.com.
@			IN MX 5		mail1.example.com.
@			IN MX 10	mail2.example.com.
ns1			IN A		192.168.0.10
ns2			IN A		192.168.0.11
mail1			IN A		192.168.0.10
mail2			IN A		192.168.0.11
[root@desktop18 ~]#  /etc/init.d/named  restart