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深蓝的blog：http://blog.csdn.net/huangyanlong/article/details/40782379
CentOS6.4下安装Oracle11G集群
前提：使用图形化完毕ssh配置，例如以下图：
错误现象：
安装grid软件时报错INS-41112错误，例如以下图所看到的：
两节点进行ping測试。分别ping“公有IP”和“私有IP”，两节点ping通正常后，按例如以下方式配置：
1、两节点进行SSH验证
节点1：
[grid@test1 ~]$ ssh rac2priv date
--验证节点2私有IP
The authenticity of host 'rac2priv (192.168.56.73)' can't be established.
RSA key fingerprint is a3:ab:da:a3:f1:0a:40:02:97:0c:96:2b:ad:43:60:b7.
Are you sure you want to continue connecting (yes/no)?
yes
Warning: Permanently added 'rac2priv,192.168.56.73' (RSA) to the list of known hosts.
Wed Oct 29 17:04:12 CST 2014
[grid@test1 ~]$ ssh rac2priv date
Wed Oct 29 17:04:14 CST 2014
[grid@test1 ~]$ ssh rac1priv date
--验证节点1私有IP
The authenticity of host 'rac1priv (192.168.56.72)' can't be established.
RSA key fingerprint is 48:3b:19:c1:d6:5d:fb:9e:32:09:3a:82:4f:2e:ad:81.
Are you sure you want to continue connecting (yes/no)? yes
Warning: Permanently added 'rac1priv,192.168.56.72' (RSA) to the list of known hosts.
Wed Oct 29 16:40:47 CST 2014
[grid@test1 ~]$ ssh rac1priv date
Wed Oct 29 16:40:48 CST 2014
[grid@test2 ~]$ ssh test1 date
--验证节点1公有IP
Wed Oct 29 17:04:14 CST 2014
[grid@test2 ~]$ ssh test2 date
--验证节点2公有IP
Wed Oct 29 17:04:14 CST 2014
节点2：
[grid@test2 ~]$ ssh rac1priv date
The authenticity of host 'rac1priv (192.168.56.72)' can't be established.
RSA key fingerprint is 48:3b:19:c1:d6:5d:fb:9e:32:09:3a:82:4f:2e:ad:81.
Are you sure you want to continue connecting (yes/no)? yes
Warning: Permanently added 'rac1priv,192.168.56.72' (RSA) to the list of known hosts.
Wed Oct 29 16:41:59 CST 2014
[grid@test2 ~]$ ssh rac1priv date
Wed Oct 29 16:42:01 CST 2014
[grid@test2 ~]$ ssh rac2priv date
The authenticity of host 'rac2priv (192.168.56.73)' can't be established.
RSA key fingerprint is a3:ab:da:a3:f1:0a:40:02:97:0c:96:2b:ad:43:60:b7.
Are you sure you want to continue connecting (yes/no)? yes
Warning: Permanently added 'rac2priv,192.168.56.73' (RSA) to the list of known hosts.
Wed Oct 29 17:05:47 CST 2014
[grid@test2 ~]$ ssh rac2priv date
Wed Oct 29 17:05:48 CST 2014
[grid@test2 ~]$ ssh rac1priv date
Wed Oct 29 16:46:32 CST 2014
[grid@test2 ~]$ ssh test1 date
--验证节点1公有IP
Wed Oct 29 16:46:48 CST 2014
[grid@test2 ~]$ ssh test2 date
--验证节点2公有IP
Wed Oct 29 17:10:46 CST 2014
2、在两个节点上关闭不必要的服务
节点1：
[root@test1 /]# chkconfig NetworkManager off
[root@test1 /]# sed -i 's/SELINUX=enforcing/SELINUX=disabled/' /etc/selinux/config
[root@test1 /]# chkconfig iptables off
节点2：
[root@test2 ~]# chkconfig NetworkManager off
[root@test2 ~]# sed -i 's/SELINUX=enforcing/SELINUX=disabled/' /etc/selinux/config
[root@test2 ~]# chkconfig iptables off
又一次运行grid安装，正常通过了。
原创作品。出自 “深蓝的blog” 博客，欢迎转载，转载时请务必注明下面出处，否则追究版权法律责任。
深蓝的blog：http://blog.csdn.net/huangyanlong/article/details/40782379