These are my notes for building a very basic DNS server using Centos 6.3.
Here we are using centos63-005.troyski.homeip.net as a DNS server to allow our other CentOS servers to get IP’s without having to administer the /etc/hosts files on each server. This is a virtual server running in VirtualBox on my Macbook Air
yum -y install bind bind-utils service named start |
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 {
//listen-on port 53 { 127.0.0.1; };
//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";
//allow-query { localhost; };
recursion yes;
dnssec-enable yes;
dnssec-validation yes;
dnssec-lookaside auto;
/* Path to ISC DLV key */
bindkeys-file "/etc/named.iscdlv.key";
managed-keys-directory "/var/named/dynamic";
};
logging {
channel default_debug {
file "data/named.run";
severity dynamic;
};
};
zone "." IN {
type hint;
file "named.ca";
};
zone "troyski.homeip.net" {
type master;
file "troyski.homeip.net.fwd";
};
zone "11.168.192.in-addr.arpa" {
type master;
file "troyski.homeip.net.rev";
};
include "/etc/named.rfc1912.zones";
include "/etc/named.root.key"; |
vi /var/named/troyski.homeip.net.fwd
$TTL 3D @ IN SOA centos63-005.troyski.homeip.net. root.troyski.homeip.net. (12 4h 1h 1w 1h) @ IN NS centos63-005.troyski.homeip.net. centos63-004 IN A 192.168.11.22 centos63-005 IN A 192.168.11.24 www IN A 192.168.11.23 centos63-006 IN A 192.168.11.25 centos63-007 IN A 192.168.11.27 |
vi /var/named/troyski.homeip.net.rev
$TTL 3D @ SOA centos63-005.troyski.homeip.net. root.troyski.homeip.net. (12 4h 1h 1w 1h) @ IN NS centos63-005.troyski.homeip.net. 24 IN PTR centos63-005.troyski.homeip.net. 22 IN PTR centos63-004.troyski.homeip.net. 23 IN PTR www.troyski.homeip.net. 25 IN PTR centos63-006.troyski.homeip.net. 27 IN PTR centos63-007.troyski.homeip.net. |
service named restart chkconfig named on |
Now just change each nodes’ /etc/resolv.conf to
domain troyski.homeip.net search troyski.homeip.net nameserver 192.168.11.24 |
