Linux-DNS服务器的IP地址是192.168.2.98
需要配置的DNS地址是192.168.2.212,这个IP地址必须没有人使用,不然安装grid会报错
1、安装以下rpm包
bind-9.3.6-4.P1.el5.x86_64.rpm
bind-chroot-9.3.6-4.P1.el5.x86_64.rpm
caching-nameserver-9.3.6-4.P1.el5.x86_64.rpm
2、复制named.caching-nameserver.conf文件为named.conf,并修改named.conf文件
[root@bjgtj1 opt]# cd /var/named/chroot/etc/
[root@bjgtj1 etc] cp -p named.caching-nameserver.conf named.conf (-p参数会将权限也复制过来)
[root@bjgtj1 etc] vi named.conf
将以下5处的内容修改成any
listen-on port 53 { any; };
allow-query { any; };
allow-query-cache { any; };
match-clients { any; };
match-destinations { any; };
3、定义zone文件
[root@bjgtj1 etc]# vi named.rfc1912.zones
在文件的最下面添加以下内容:
-----配置正向解析zone
zone "linuxidc.com" IN {
type master;
file "rac.linuxidc.zone";
allow-update { none; };
};
-----配置反向解析zone
zone "2.168.192.in-addr.arpa" IN {
type master;
file "rac.linuxidc.local";
allow-update { none; };
};
4、复制模板文件成数据文件
[root@bjgtj1 etc]# cd /var/named/chroot/var/named/
[root@bjgtj1 named]# cp -p localhost.zone rac.linuxidc.zone
[root@bjgtj1 named]# cp -p named.local rac.linuxidc.local
[root@bjgtj1 named]# vi rac.linuxidc.zone
$TTL 86400
@ IN SOA @ root (
42 ; serial (d. adams)
3H ; refresh
15M ; retry
1W ; expiry
1D ) ; minimum
IN NS linuxidc.com
rac-scan IN A 192.168.2.212
-------------------------------------------------------
[root@bjgtj1 named]#vi rac.linuxidc.local
$TTL 86400
@ IN SOA localhost. root.localhost. (
1997022700 ; Serial
28800 ; Refresh
14400 ; Retry
3600000 ; Expire
86400 ) ; Minimum
IN NS linuxidc.
212 IN PTR rac-scan.linuxidc.com.
5、验证DNS配置
登录192.168.2.208,在hosts文件里添加 192.168.2.212 rac-scan.linuxidc.com rac-scan
vi /etc/hosts
127.0.0.1 localhost
::1 localhost6.localdomain6 localhost6
#Public Network
192.168.2.208 db1
192.168.2.209 db2
#Private Interconnect
10.0.1.55 db1-priv
10.0.1.56 db2-priv
#Public Virtual ip
192.168.2.210 db1-vip
192.168.2.211 db2-vip
192.168.2.212 rac-scan.linuxidc.com rac-scan
(安装grid时候clustername输入rac-scan scan-name输入rac-scan.linuxidc.com)
编辑resolv.conf文件,添加内容:
vi /etc/resolv.conf
search rac-scan.linuxidc.com
nameserver 192.168.2.98
登录192.168.2.209,在hosts文件里添加 192.168.2.212 rac-scan.linuxidc.com rac-scan
编辑resolv.conf文件,添加内容:
vi /etc/resolv.conf
search rac-scan.linuxidc.com
nameserver 192.168.2.98
------------------------------------
分别在两个节点验证,使用以下命令:
nslookup 192.168.2.212
nslookup rac-scan.linuxidc.com