Config BIND DNS

1. Cai dat BIND DNS

- yum install bind caching-nameserver

2. Open port 53 in iptables

- vi /etc/sysconfig/iptables

- A INPUT -p udp -m state -m udp --dport 53 --state NEW -j ACCEPT

3. Config /var/named.conf file

acl net {

172.22.15.0/24;

};

options {

listen-on port 53 {127.0.0.1; 172.22.15.17; };

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;

172.22.15.17;172.22.15.0/24;

};

allow-transfer {

127.0.0.1;

172.22.15.0/24;

};

recurision yes;

};

logging {

channel default_debug {

file "data/named.run";

severity dunamic;

};

};

zone "." IN {

type hint;

file "named.ca";

};

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

controls {

inet 172.22.15.17 port 53 allow { 127.0.0.1; 172.22.15.17; } keys { rndc-key; };

};