Setting up DNS Server
We will now setup our BIND DNS server. DNS is used to translate IP Address to fully qualified domain names. We also need DNS for mail management through MX records.
-
Install BIND
yum -y install bind bind-utils
-
Edit /etc/named/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 { any; };
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 { any; };
recursion yes;
dnssec-enable no;
dnssec-validation no;
dnssec-lookaside auto;
/* Path to ISC DLV key */
bindkeys-file "/etc/named.iscdlv.key";
managed-keys-directory "/var/named/dynamic";
pid-file "/run/named/named.pid";
session-keyfile "/run/named/session.key";
};
logging {
channel default_debug {
file "data/named.run";
severity dynamic;
};
};
zone "." IN {
type hint;
file "named.ca";
};
include "/etc/named.rfc1912.zones";
include "/etc/named.root.key";
## Internal zone definitions
zone "gracie.net" {
type master;
file "db.gracie.net";
allow-update { none; };
};
zone "88.168.192.in-addr.arpa" {
type master;
file "db.88.168.192";
allow-update { none; };
};
- Create /var/named/db.gracie.net
$TTL 86400
@ IN SOA localhost. root.localhost. (
2015101000 ; Serial
86400 ; Refresh
3600 ; Retry
604800 ; Expire
7200 ) ; Negative Cache TTL
@ IN NS localhost.
@ IN A 192.168.88.10
dhcp IN A 192.168.88.10
dns IN A 192.168.88.10
mariadb IN A 192.168.88.11
- Create /var/named/db.88.168.192
$TTL 86400
@ IN SOA localhost. root.localhost. (
2015101000 ; Serial
86400 ; Refresh
3600 ; Retry
604800 ; Expire
7200 ) ; Negative Cache TTL
@ IN NS localhost.
2 IN PTR dhcp.gracie.net. ;192.168.88.10
2 IN PTR dns.gracie.net. ;192.168.88.10
2 IN PTR mariadb.gracie.net. ;192.168.88.11
-
Verify BIND configuration. Make sure no errors come up.
` named-checkconf /etc/named.conf`
-
Start named service
systemctl start named
-
Enable named on boot
systemctl enable named
Written on November 19, 2015