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Linux-DNS配置 安装Oracle 11g RAC

Jun 07, 2016 pm 04:44 PM

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

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

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