CentOS bind config

Server Name = dns.broexperts.com
Server IP       = 192.168.0.211/24
Step 1. Installation of required packages.
We use yum to install BIND packages.

# yum -y install bind bind-libs bind-utils

Step 2.  Set BIND service start on system boot

# chkconfig –-level 35 named on

Step 3. Start named service for generating some default configuration files.

# service named start

Step 4. Edit main configuration file and add zone entry of www.broexperts.com.

# vi /etc/named.conf

//
// named.conf
//
// Provided by Red Hat bind 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.
//

options {
        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";
        recursion yes;

        dnssec-enable yes;
        dnssec-validation yes;
        dnssec-lookaside auto;

        /* Path to ISC DLV key */
        bindkeys-file "/etc/named.iscdlv.key";
};

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

zone "." IN {
        type hint;
        file "named.ca";
};
zone "broexperts.com" {
        type master;
        file "broexperts.com.fwd";
};
zone "0.168.192.in-addr.arpa" {
        type master;
        file "broexperts.com.rev";
};
include "/etc/named.rfc1912.zones";

Step 5. Create Zone files which we mentioned in named.conf file.

# cd /var/named

# vi broexperts.com.fwd

$ORIGIN broexperts.com.

$TTL 3D

@       SOA     dns.broexperts.com.     root.broexperts.com. (12 4h 1h 1w 1h)

@       IN      NS      dns.broexperts.com.

dns.broexperts.com.     IN      A       192.168.0.211

www                                     IN      A       192.168.0.211

# vi broexperts.com.rev

$ORIGIN 0.168.192.in-addr.arpa.

$TTL 3D

@       SOA     dns.broexperts.com.     root.broexperts.com. (12 4h 1h 1w 1h)

@       IN      NS      dns.broexperts.com.

211     IN      PTR     dns.broexperts.com.

Step 6. Restart BIND Service

# service named restart

Step 7. Test your DNS server
Note : Before testing , make sure your /etc/resolve.conf file contain DNS server ip that has been set up.

# cat /etc/resolve.conf

search broexperts.com

nameserver 192.168.0.211

# nslookup www.broexperts.com

Server:         192.168.0.211

Address:        192.168.0.211#53

Name:   www.broexperts.com

Address: 192.168.0.211

# nslookup 192.168.0.211

Server:         192.168.0.211

Address:        192.168.0.211#53

211.0.168.192.in-addr.arpa      name = dns.broexperts.com.