通过 DNS 解析SCAN IP

通过 DNS 解析 Oracle SCAN IP 配置

1、安装dns相关软件包
yum -y install bind bind-chroot

2、配置主区域

vi /etc/named.rfc1912.zones
zone "scan.com" IN {
type master;
file "named.scan";
allow-update { none; };
};

zone "142.168.192.in-addr.arpa" IN {
type master;
file "named.192.168.142";
allow-update { none; };
};

3、配置正向解析

cp -a /var/named/named.localhost /var/named/named.scan
vi /var/named/named.scan
$TTL 1D
@       IN SOA  @ rname.invalid. (
0       ; serial
1D      ; refresh
1H      ; retry
1W      ; expire
3H )    ; minimum
NS      @
A       127.0.0.1
AAAA    ::1
dns     A       192.168.142.179
dns     A       192.168.142.180
dns     A       192.168.142.181

4、配置反向解析

cp -a /var/named/named.loopback /var/named/named.192.168.142
vi /var/named/named.192.168.142
$TTL 1D
@       IN SOA  @ rname.invalid. (
0       ; serial
1D      ; refresh
1H      ; retry
1W      ; expire
3H )    ; minimum
NS      @
A       127.0.0.1
AAAA    ::1
PTR     localhost.
179     PTR     dns.scan.com.
180     PTR     dns.scan.com.
181     PTR     dns.scan.com.