linux下一个Oracle11g RAC建立（五岁以下儿童）

linux下一个Oracle11g RAC建立（五岁以下儿童）

四、建立主机之间的信任关系（node1、node2）

建立节点之间oracle 、grid 用户之间的信任（通过ssh 建立公钥和私钥）

分别在node1和node2创建

=====Oracle用户=========================

在oracle用户下操作：

[root@node1 /]# su - oracle

[oracle@node1 ~]$ mkdir .ssh       创建一个.ssh的隐藏文件夹

[oracle@node1 ~]$ ls -al

total 44

-rw-r--r-- 1 oracle oinstall   33 Jul 12 17:05 .bash_logout

-rw-r--r-- 1 oracle oinstall  438 Jul 12 18:03 .bash_profile

drwxr-xr-x 4 oracle oinstall 4096 Jul 1217:05 .mozilla

drwx------ 2 oracle oinstall 4096 Jul 1218:05 .ssh

-rw------- 1 oracle oinstall  657 Jul 12 18:03 .viminfo

1）生成密钥对（rsa+dsa）（node1、node2）

node1生成密钥rsa类型

id_rsa为私钥。自己主动保存到.ssh下

id_rsa.pub为公钥。自己主动保存到.ssh下

[oracle@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

Enter passphrase (empty for nopassphrase):  enter

Enter same passphrase again:  enter

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:

64:a6:4a:77:db:33:a4:aa:6e:ca:8f:5f:2f:77:0f:40oracle@node1

node1生成密钥dsa类型

id_dsa为私钥。自己主动保存到.ssh下

id_dsa.pub为公钥，自己主动保存到.ssh下

[oracle@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 

Enter passphrase (empty for no passphrase):enter

Enter same passphrase again: enter

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:

7c:41:b5:0f:81:06:ad:30:07:4f:8b:1a:9b:94:68:14oracle@node1

node2生成密钥rsa类型

id_rsa为私钥。自己主动保存到.ssh下

id_rsa.pub为公钥，自己主动保存到.ssh下

[oracle@node2 asm]# su - oracle

[oracle@node2 ~]$ mkdir .ssh

[oracle@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

Enter passphrase (empty for nopassphrase):  enter

Enter same passphrase again:  enter

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:

64:a6:4a:77:db:33:a4:aa:6e:ca:8f:5f:2f:77:0f:40oracle@node1

node2生成密钥dsa类型

id_dsa为私钥。自己主动保存到.ssh下

id_dsa.pub为公钥，自己主动保存到.ssh下

[oracle@node2 ~]$ ssh-keygen -tdsa    

Generatingpublic/private dsa key pair.

Enter file inwhich to save the key (/home/oracle/.ssh/id_dsa): enter 

Enter passphrase(empty for no passphrase): enter

Enter samepassphrase again: enter

Youridentification has been saved in /home/oracle/.ssh/id_dsa.

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

The keyfingerprint is:

7c:41:b5:0f:81:06:ad:30:07:4f:8b:1a:9b:94:68:14oracle@node1

2）配置信任关系（node1、node2）

为node1配置信任

[oracle@node1 ~]$ ls .ssh

id_dsa       id_rsa             id_dsa.pub   id_rsa.pub

//rsa和dsa为私钥                .pub的为公钥

//ssh下文件authorized_keys是专门存储公钥信息的

//把rsa、dsa类型的公钥文件都放入到authorized_keys文件中

// “ssh  node2”命令代表登陆到节点2下操作

//把两种类型的公钥信息都放到节点2的authorized_keys文件中

[oracle@node1 ~]$ cat.ssh/id_rsa.pub >>.ssh/authorized_keys

[oracle@node1 ~]$ cat.ssh/id_dsa.pub >>.ssh/authorized_keys

[oracle@node1 ~]$ ssh node2  cat .ssh/id_rsa.pub>>.ssh/authorized_keys

oracle@node2's password:

[oracle@node1 ~]$ ssh
node2  cat .ssh/id_dsa.pub>>.ssh/authorized_keys

oracle@node2's password:  oracle的密码

为node2配置信任

能够把node1中的authorized_keys（密钥文件）拷贝到node2中

[oracle@node1 ~]$ scp.ssh/authorized_keys   node2:~/.ssh

oracle@node2's password: oracle的密码

3）验证信任关系（node1、node2）

node1上验证信任

[oracle@node1 ~]$ ssh
node2date

[oracle@node1 ~]$ ssh
node2-privdate     //私有ip地址验证

[oracle@node1 ~]$ ssh
node1date

[oracle@node1 ~]$ ssh
node1-privdate    

具体操作例如以下：

[oracle@node1 ~]$ ssh node2date

Thu May  214:46:30 CST 2013

[oracle@node1 ~]$ sshnode2-priv date                 //不要求输入password代表信任成功

The authenticity of host 'node2-priv (10.10.10.2)'can't be established.

RSA key fingerprint is16:28:88:50:27:30:92:cb:49:be:55:61:f6:c2:a1:3f.

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

Warning: Permanently added 'node2-priv,10.10.10.2'(RSA) to the list of known hosts.

Thu May  214:47:03 CST 2013

[oracle@node1 ~]$ sshnode2-priv date

Thu May  214:47:05 CST 2013

[oracle@node1 ~]$ ssh node1date

Thu May  214:48:19 CST 2013

[oracle@node1 ~]$ sshnode1-priv date

The authenticity of host 'node1-priv (10.10.10.1)'can't be established.

RSA key fingerprint is39:04:88:3b:54:34:3c:34:d2:df:74:37:fe:5f:92:2d.

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

Warning: Permanently added 'node1-priv,10.10.10.1'(RSA) to the list of known hosts.

Thu May  214:48:35 CST 2013

[oracle@node1 ~]$ sshnode1-priv date

Thu May  214:48:36 CST 2013

node2上验证信任

[oracle@node2 ~]$ ssh
node1date

[oracle@node2~]$ ssh
node1-priv date    

[oracle@node2 ~]$ ssh
node2date

[oracle@node2~]$ ssh
node2-priv date    

=====Grid 用户==========================

步骤同oracle
一样，可參考oracle用户下设置

在grid用户下操作：

[root@node1 /]# su– grid

[grid@node1 ~]$mkdir .ssh       创建一个.ssh的隐藏文件夹

[grid@node1 ~]$ ls-al

1）生成密钥对（rsa+dsa）（node1、node2）

node1生成密钥rsa类型

id_rsa为私钥。自己主动保存到.ssh下

id_rsa.pub为公钥，自己主动保存到.ssh下

[grid@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

Enter passphrase (empty for no passphrase):  enter

Enter same passphrase again:  enter

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:

64:a6:4a:77:db:33:a4:aa:6e:ca:8f:5f:2f:77:0f:40oracle@node1

node1生成密钥dsa类型

id_dsa为私钥。自己主动保存到.ssh下

id_dsa.pub为公钥，自己主动保存到.ssh下

[grid@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

Enter passphrase (empty for no passphrase): enter

Enter same passphrase again: enter

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:

7c:41:b5:0f:81:06:ad:30:07:4f:8b:1a:9b:94:68:14oracle@node1

node2生成密钥rsa类型

id_rsa为私钥。自己主动保存到.ssh下

id_rsa.pub为公钥，自己主动保存到.ssh下

[root@node2 ~]# su – grid

[grid@node2 ~]$ mkdir .ssh

[grid@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

Enter passphrase (empty for no passphrase):  enter

Enter same passphrase again:  enter

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:

64:a6:4a:77:db:33:a4:aa:6e:ca:8f:5f:2f:77:0f:40oracle@node1

node2生成密钥dsa类型

id_dsa为私钥，自己主动保存到.ssh下

id_dsa.pub为公钥。自己主动保存到.ssh下

[grid@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

Enter passphrase (empty for no passphrase): enter

Enter same passphrase again: enter

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:

7c:41:b5:0f:81:06:ad:30:07:4f:8b:1a:9b:94:68:14oracle@node1

2）配置信任关系（node1、node2）

为node1配置信任

[grid@node1 ~]$ ls .ssh

id_dsa       id_rsa             id_dsa.pub   id_rsa.pub      known_hosts

rsa和dsa为私钥                .pub的为公钥

[grid@node1 ~]$ cat.ssh/id_rsa.pub >>.ssh/authorized_keys

[grid@node1 ~]$ cat.ssh/id_dsa.pub >>.ssh/authorized_keys

[grid@node1 ~]$ ssh node2  cat .ssh/id_rsa.pub>>.ssh/authorized_keys

grid@node2's password:

[grid@node1 ~]$ ssh
node2  cat .ssh/id_dsa.pub >>.ssh/authorized_keys

grid@node2's password: grid的密码

为node2配置信任

能够把node1中的authorized_keys（密钥文件）拷贝到node2中

[grid@node1 ~]$ scp.ssh/authorized_keys  
node2:~/.ssh

grid@node2's password: grid的密码

authorized_keys                             100% 1992     2.0KB/s  00:00

3）验证信任关系（node1、node2）

node1上验证信任

[grid@node1 ~]$ ssh
node2date

[grid@node1 ~]$ ssh
node2-privdate    

[grid@node1 ~]$ ssh
node1date

[grid@node1 ~]$ ssh
node1-privdate    

具体操作例如以下：

[grid@node1 ~]$ ssh node2date

Thu May  214:46:30 CST 2013

[grid@node1 ~]$ sshnode2-priv date                  //不要输入password为信任成功

The authenticity of host 'node2-priv (10.10.10.2)'can't be established.

RSA key fingerprint is 16:28:88:50:27:30:92:cb:49:be:55:61:f6:c2:a1:3f.

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

Warning: Permanently added 'node2-priv,10.10.10.2'(RSA) to the list of known hosts.

Thu May  214:47:03 CST 2013

[grid@node1 ~]$ sshnode2-priv date

Thu May  214:47:05 CST 2013

[grid@node1 ~]$ ssh node1date

Thu May  214:48:19 CST 2013

[grid@node1 ~]$ sshnode1-priv date

The authenticity of host 'node1-priv (10.10.10.1)'can't be established.

RSA key fingerprint is39:04:88:3b:54:34:3c:34:d2:df:74:37:fe:5f:92:2d.

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

Warning: Permanently added 'node1-priv,10.10.10.1'(RSA) to the list of known hosts.

Thu May  214:48:35 CST 2013

[grid@node1 ~]$ sshnode1-priv date

Thu May  214:48:36 CST 2013

node2上验证信任

[grid@node2 ~]$ ssh
node1date

[grid@node2~]$ ssh
node1-priv date    

[grid@node2 ~]$ ssh
node2date

[grid@node2~]$ ssh
node2-priv date    

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