BIND CHROOT

########################  DNS CONFIGURATION ########

1. DNS Server Name: rhel5test.linux.com (192.168.1.21) ;  domain: linux.com

2.  Download and Install Packages related to bind:

      yum install bind*

      bind-utils, bind-sdb, bind-libs, bind-9.3, bind-chroot, bind-libbind-devel

      yum install caching-nameserver

3.  Configure : name.conf file  ( main configuration file )

     cd /var/named/chroot/etc/

     cp  named.caching-nameserver.conf  named.conf

     vi named.conf

     options  {
listen­on port 53 {  127.0.0.1; 192.168.1.21;   };
listen­on­v6 port 53 { ::1; };
directory “/var/named”;
dump­file “/var/named/data/cache_dump.db”;
statistics­file “/var/named/data/named_stats.txt”;

memstatistics­file “/var/named/data/

named_mem_stats.txt”;

            query­source port 53;

            allow-query {  127.0.0.1; 192.168.1.0/24;  };

allow­query {  127.0.0.1;  192.168.1.0/24;  };

  allow­transfer {  127.0.0.1; 192.168.1.21;   };

forwarders {   127.0.0.1; 192.168.1.21;   };
forward only;
};

logging {
channel default_debug {
file “data/named.run”;
severity dynamic;
};

};

view localhost_resolver {
match­clients { localhost; 192.168.1.0/24; };

match­destinations { localhost; 192.168.1.0/24;  };

recursion yes;
include “/etc/named.rfc1912.zones”;
};

==>  Copy named.conf to /etc/ dir

4.  Configure Zone files

       vi  /etc/named.rfc1912.zones

zone “linux.com” IN   {

type master;

file “linux.com.fzone”;

allow-update  {  none;  };

allow-query    {   any;  };

};

           zone  “1.168.192.in-addr.arpa”  IN  {

type master;

file “linux.come.reverse”;

allow-update  {  none;  };

allow-query    {   any;  };

           };

5.     cd /var/named/chroot/var/named   ;;   cp localhost.zone  linux.com.fzone ;;  cp named.local linux.come.reverse

6.     Change ownership to root:named and permission to 755 for following files

        Both zone files ,  named.conf  (both at /etc/ and /var/named/chroot/etc/)

        /etc/named.rfc1912.zones

7.    Edit Forward zone file ( Take care of dots after fqdns )

     $TTL 86400
@ IN SOA rhel5test.linux.com. root. rhel5test.linux.com. ( 42 ; serial (d. adams)
3H ; refresh
15M ; retry
1W ; expiry
1D ) ; minimum
@ IN NS rhel5test.linux.com

.
rhel5test.linux.com. IN A 192.168.1.21

rhel6test.linux.com. IN A 192.168.1.22 # Client

8.   Edit Reverse Zone file  (Take care of dots after fqdns )

      $TTL 86400
@ IN SOA rhel5test.linux.com. rhel5test.linux.com. ( 1997022700 ; Serial

28800 ; Refresh
14400 ; Retry
3600000 ; Expire
86400 ) ; Minimum
@ IN NS rhel5test.linux.com.
21 IN PTR rhel5test.linux.com.
22 IN PTR rhel6test.linux.com. # Client

9..   Check config file :  service named configtest

10.  Restart named services

11.  Test DNS using  dig server name ;  dig -x  server IP , nslookup

12  Client SIDE :: Make changes in /etc/resolv.conf :::   search  linux.com

    nameserver  192.178.1.21