Linux下搭建Oracle11g RAC(4)----配置oracle,grid用户SSH对等性

虽然在安装软件的过程中，oracle会自动配置SSH对等性，建议在安装软件之前手工配置。

配置oracle用户对等性：

node1:

[root@node1 ~]# su - oracle

node1-> env | grep ORA

ORACLE_UNQNAME=devdb

ORACLE_SID=devdb1

ORACLE_BASE=/u01/app/oracle

ORACLE_HOSTNAME=node1.localdomain

ORACLE_TERM=xterm

ORACLE_HOME=/u01/app/oracle/product/11.2.0/db_1

node1-> pwd

/home/oracle

node1-> mkdir ~/.ssh

node1-> chmod 700 ~/.ssh

node1-> ls -al

total 44

drwx—— 4 oracle oinstall 4096 Apr 24 10:47 .

drwxr-xr-x 4 root   root     4096 Apr 24 09:41 ..

-rw——- 1 oracle oinstall    5 Apr 24 10:43 .bash_history

-rw-r–r– 1 oracle oinstall   33 Apr 24 09:41 .bash_logout

-rw-r–r– 1 oracle oinstall  823 Apr 24 09:41 .bash_profile

-rw-r–r– 1 oracle oinstall  124 Apr 24 09:41 .bashrc

-rw-r–r– 1 oracle oinstall  515 Apr 24 09:41 .emacs

drwxr-xr-x 4 oracle oinstall 4096 Apr 24 09:41 .mozilla

drwx—— 2 oracle oinstall 4096 Apr 24 10:47 .ssh

-rw-r–r– 1 oracle oinstall  658 Apr 24 09:41 .zshrc

node1-> ssh-keygen -t rsa

Generating public/private rsa key pair.

Enter file in which to save the key (/home/oracle/.ssh/id_rsa): 

Enter passphrase (empty for no passphrase): 

Enter same passphrase again: 

Your identification has been saved in /home/oracle/.ssh/id_rsa.

Your public key has been saved in /home/oracle/.ssh/id_rsa.pub.

The key fingerprint is:

4a:bd:22:4c:cc:6a:33:ae:5a:de:7d:7c:8b:77:9e:81 oracle@node1.localdomain

node1-> ssh-keygen -t dsa 

Generating public/private dsa key pair.

Enter file in which to save the key (/home/oracle/.ssh/id_dsa): 

Enter passphrase (empty for no passphrase): 

Enter same passphrase again: 

Your identification has been saved in /home/oracle/.ssh/id_dsa.

Your public key has been saved in /home/oracle/.ssh/id_dsa.pub.

The key fingerprint is:

8b:50:73:41:03:ad:1c:59:25:aa:40:1c:c9:5e:03:99 oracle@node1.localdomain

node1->

node2:

[root@node2 ~]# su - oracle

node2-> env|grep ORA

ORACLE_UNQNAME=devdb

ORACLE_SID=devdb2

ORACLE_BASE=/u01/app/oracle

ORACLE_HOSTNAME=node2.localdomain

ORACLE_TERM=xterm

ORACLE_HOME=/u01/app/oracle/product/11.2.0/db_1

node2-> pwd

/home/oracle

node2-> ls -al

total 40

drwx—— 3 oracle oinstall 4096 Apr 24 10:45 .

drwxr-xr-x 4 root   root     4096 Apr 24 10:44 ..

-rw——- 1 oracle oinstall   10 Apr 24 10:49 .bash_history

-rw-r–r– 1 oracle oinstall   33 Apr 24 10:44 .bash_logout

-rw-r–r– 1 oracle oinstall  823 Apr 24 10:44 .bash_profile

-rw-r–r– 1 oracle oinstall  124 Apr 24 10:44 .bashrc

-rw-r–r– 1 oracle oinstall  515 Apr 24 10:44 .emacs

drwxr-xr-x 4 oracle oinstall 4096 Apr 24 10:44 .mozilla

-rw-r–r– 1 oracle oinstall  658 Apr 24 10:44 .zshrc

node2-> mkdir ~/.ssh

node2-> chmod 770 ~/.ssh/

node2-> ls -al

total 44

drwx—— 4 oracle oinstall 4096 Apr 24 10:49 .

drwxr-xr-x 4 root   root     4096 Apr 24 10:44 ..

-rw——- 1 oracle oinstall   10 Apr 24 10:49 .bash_history

-rw-r–r– 1 oracle oinstall   33 Apr 24 10:44 .bash_logout

-rw-r–r– 1 oracle oinstall  823 Apr 24 10:44 .bash_profile

-rw-r–r– 1 oracle oinstall  124 Apr 24 10:44 .bashrc

-rw-r–r– 1 oracle oinstall  515 Apr 24 10:44 .emacs

drwxr-xr-x 4 oracle oinstall 4096 Apr 24 10:44 .mozilla

drwxrwx— 2 oracle oinstall 4096 Apr 24 10:49 .ssh

-rw-r–r– 1 oracle oinstall  658 Apr 24 10:44 .zshrc

node2-> ssh-keygen -t rsa

Generating public/private rsa key pair.

Enter file in which to save the key (/home/oracle/.ssh/id_rsa): 

Enter passphrase (empty for no passphrase): 

Enter same passphrase again: 

Your identification has been saved in /home/oracle/.ssh/id_rsa.

Your public key has been saved in /home/oracle/.ssh/id_rsa.pub.

The key fingerprint is:

a0:64:81:a6:12:b2:18:4e:01:c3:bd:9d:f6:bb:55:b0 oracle@node2.localdomain

node2-> ssh-keygen -t dsa

Generating public/private dsa key pair.

Enter file in which to save the key (/home/oracle/.ssh/id_dsa): 

Enter passphrase (empty for no passphrase): 

Enter same passphrase again: 

Your identification has been saved in /home/oracle/.ssh/id_dsa.

Your public key has been saved in /home/oracle/.ssh/id_dsa.pub.

The key fingerprint is:

85:56:69:73:74:a3:ef:5b:88:d7:6d:ef:90:03:b6:72 oracle@node2.localdomain

node2->

返回节点1：

node1-> id

uid=1101(oracle) gid=1000(oinstall) groups=1000(oinstall),1201(asmdba),1300(dba),1301(oper)

node1-> pwd

/home/oracle

node1-> cat ~/.ssh/id_rsa.pub >>~/.ssh/authorized_keys

node1-> cat ~/.ssh/id_dsa.pub >>~/.ssh/authorized_keys 

node1-> ssh node2 cat ~/.ssh/id_rsa.pub >>~/.ssh/authorized_keys 

The authenticity of host 'node2 (172.16.0.192)' can't be established.

RSA key fingerprint is a7:6b:2c:2d:fb:c3:ff:33:af:92:cd:7b:99:3b:cf:3a.

Are you sure you want to continue connecting (yes/no)? yes

Warning: Permanently added 'node2,172.16.0.192' (RSA) to the list of known hosts.

oracle@node2's password: 

node1-> ssh node2 cat ~/.ssh/id_dsa.pub >>~/.ssh/authorized_keys 

oracle@node2's password: 

node1-> scp ~/.ssh/authorized_keys node2:~/.ssh/authorized_keys 

oracle@node2's password: 

authorized_keys       

100% 2040     2.0KB/s   00:00  

node1->

验证oracle SSH对等性：

在node1，node2两个节点上分别执行下述命令，第一次执行时需要口令验证：

node1-> id

uid=1101(oracle) gid=1000(oinstall) groups=1000(oinstall),1201(asmdba),1300(dba),1301(oper)

node1-> ssh node1 date

The authenticity of host 'node1 (172.16.0.191)' can't be established.

RSA key fingerprint is 16:c2:67:cd:73:dd:b7:8b:f4:07:ef:e0:fb:36:34:3e.

Are you sure you want to continue connecting (yes/no)? yes

Warning: Permanently added 'node1,172.16.0.191' (RSA) to the list of known hosts.

Tue Apr 24 11:28:15 CST 2012

node1-> ssh node2 date

Tue Apr 24 11:28:18 CST 2012

node1-> ssh node1-priv date

The authenticity of host 'node1-priv (192.168.94.11)' can't be established.

RSA key fingerprint is 16:c2:67:cd:73:dd:b7:8b:f4:07:ef:e0:fb:36:34:3e.

Are you sure you want to continue connecting (yes/no)? yes

Warning: Permanently added 'node1-priv,192.168.94.11' (RSA) to the list of known hosts.

Tue Apr 24 11:28:25 CST 2012

node1-> ssh node2-priv date

The authenticity of host 'node2-priv (192.168.94.12)' can't be established.

RSA key fingerprint is a7:6b:2c:2d:fb:c3:ff:33:af:92:cd:7b:99:3b:cf:3a.

Are you sure you want to continue connecting (yes/no)? yes

Warning: Permanently added 'node2-priv,192.168.94.12' (RSA) to the list of known hosts.

Tue Apr 24 11:28:30 CST 2012

node1-> ssh node1.localdomain date

The authenticity of host 'node1.localdomain (172.16.0.191)' can't be established.

RSA key fingerprint is 16:c2:67:cd:73:dd:b7:8b:f4:07:ef:e0:fb:36:34:3e.

Are you sure you want to continue connecting (yes/no)? yes

Warning: Permanently added 'node1.localdomain' (RSA) to the list of known hosts.

Tue Apr 24 11:28:39 CST 2012

node1-> ssh node2.localdomain date

The authenticity of host 'node2.localdomain (172.16.0.192)' can't be established.

RSA key fingerprint is a7:6b:2c:2d:fb:c3:ff:33:af:92:cd:7b:99:3b:cf:3a.

Are you sure you want to continue connecting (yes/no)? yes

Warning: Permanently added 'node2.localdomain' (RSA) to the list of known hosts.

Tue Apr 24 11:28:46 CST 2012

node1-> ssh node2-priv.localdomain date

The authenticity of host 'node2-priv.localdomain (192.168.94.12)' can't be established.

RSA key fingerprint is a7:6b:2c:2d:fb:c3:ff:33:af:92:cd:7b:99:3b:cf:3a.

Are you sure you want to continue connecting (yes/no)? yes

Warning: Permanently added 'node2-priv.localdomain' (RSA) to the list of known hosts.

Tue Apr 24 11:28:52 CST 2012

node1-> ssh node1-priv.localdomain date

The authenticity of host 'node1-priv.localdomain (192.168.94.11)' can't be established.

RSA key fingerprint is 16:c2:67:cd:73:dd:b7:8b:f4:07:ef:e0:fb:36:34:3e.

Are you sure you want to continue connecting (yes/no)? yes

Warning: Permanently added 'node1-priv.localdomain' (RSA) to the list of known hosts.

Tue Apr 24 11:28:59 CST 2012

第二次执行时不再提示输入口令，并且可以成功执行命令，则表示oracle用户SSH对等性配置成功

node1：

node1-> ssh node1 date

Tue Apr 24 11:29:02 CST 2012

node1-> ssh node2 date

Tue Apr 24 11:29:07 CST 2012

node1-> ssh node1-priv date

Tue Apr 24 11:29:13 CST 2012

node1-> ssh node2-priv date

Tue Apr 24 11:29:18 CST 2012

node1-> ssh node2-priv.localdomain date

Tue Apr 24 11:29:27 CST 2012

node1-> ssh node1-priv.localdomain date

Tue Apr 24 11:29:33 CST 2012

node1->

node2：

node2-> id

uid=1101(oracle) gid=1000(oinstall) groups=1000(oinstall),1201(asmdba),1300(dba),1301(oper)

node2-> pwd

/home/oracle

node2-> ssh node1 date

Tue Apr 24 11:32:06 CST 2012

node2-> ssh node2 date

Tue Apr 24 11:32:09 CST 2012

node2-> ssh node1-priv date

Tue Apr 24 11:32:14 CST 2012

node2-> ssh node2-priv date

Tue Apr 24 11:32:17 CST 2012

node2-> ssh node1.localdomain date

Tue Apr 24 11:32:26 CST 2012

node2-> ssh node2.localdomain date

Tue Apr 24 11:32:29 CST 2012

node2-> ssh node1-priv.localdomain date

Tue Apr 24 11:32:39 CST 2012

node2-> ssh node2-priv.localdomain date

Tue Apr 24 11:32:43 CST 2012

node2->

至此，Oracle用户SSH对等性配置完成！重复上述步骤，以grid用户配置其对等性。

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