Linux-DNS配置 安装oracle11g rac

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 "flawless.com" IN {

type master;

file "rac.flawless.zone";

allow-update { none; };

};

-----配置反向解析zone

zone "2.168.192.in-addr.arpa" IN {

type master;

file "rac.flawless.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.flawless.zone

[root@bjgtj1 named]# cp -p named.local rac.flawless.local

[root@bjgtj1 named]# vi rac.flawless.zone

$TTL 86400

@ IN SOA @ root (

42 ; serial (d. adams)

3H ; refresh

15M ; retry

1W ; expiry

1D ) ; minimum

IN NS flawless.com

rac-scan IN A 192.168.2.212

-------------------------------------------------------

[root@bjgtj1 named]#vi rac.flawless.local

$TTL 86400

@ IN SOA localhost. root.localhost. (

1997022700 ; Serial

28800 ; Refresh

14400 ; Retry

3600000 ; Expire

86400 ) ; Minimum

IN NS flawless.

212 IN PTR rac-scan.flawless.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.flawless.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.flawless.com rac-scan

(安装grid时候clustername输入rac-scan scan-name输入rac-scan.flawless.com)

编辑resolv.conf文件，添加内容：

vi /etc/resolv.conf

search rac-scan.flawless.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.flawless.com rac-scan

编辑resolv.conf文件，添加内容：

vi /etc/resolv.conf

search rac-scan.flawless.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.flawless.com

输出如下信息则验证成功：

Server: 192.168.2.98

Address: 192.168.2.98#53

98.2.168.192.in-addr.arpa name = rac-scan.flawless.com.