5.1 Oracle用户下建立信任
5.11创建.ssh目录
[root@sgdb1 /]# su - oracle

[oracle@sgdb1 ~]$ mkdir .ssh       创建一个.ssh的隐藏目录
[oracle@sgdb1 ~]$ 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
5.12 sgdb1生成密钥rsa类型
id_rsa为私钥，自动保存到.ssh下
id_rsa.pub为公钥，自动保存到.ssh下
[oracle@sgdb1 ~]$ 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@sgdb1
5.12 sgdb1生成密钥dsa类型
id_dsa为私钥，自动保存到.ssh下
id_dsa.pub为公钥，自动保存到.ssh下
[oracle@sgdb1 ~]$ 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@sgdb1
5.13 sgdb2生成密钥rsa类型
id_rsa为私钥，自动保存到.ssh下
id_rsa.pub为公钥，自动保存到.ssh下
 [oracle@sgdb2 asm]# su - oracle

[oracle@sgdb2 ~]$ mkdir .ssh
[oracle@sgdb2 ~]$ 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@sgdb1
5.14 sgdb2生成密钥dsa类型
id_dsa为私钥，自动保存到.ssh下
id_dsa.pub为公钥，自动保存到.ssh下
 [oracle@sgdb2 ~]$ 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@sgdb1
5.16 为sgdb1配置信任
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文件里
下操作
的authorized_keys文件里
[oracle@sgdb1 ~]$ ls .ssh

id_dsa       id_rsa             id_dsa.pub   id_rsa.pub     
[oracle@sgdb1 ~]$ cat.ssh/id_rsa.pub >>.ssh/authorized_keys
[oracle@sgdb1 ~]$ cat.ssh/id_dsa.pub >>.ssh/authorized_keys
[oracle@sgdb1 ~]$ ssh sgdb2  cat .ssh/id_rsa.pub>>.ssh/authorized_keys
oracle@sgdb2's password:
[oracle@sgdb1 ~]$ ssh sgdb2  cat .ssh/id_dsa.pub>>.ssh/authorized_keys
oracle@sgdb2's password:  oracle的密码
5.17 为sgdb2配置信任
可以把sgdb1中的authorized_keys（密钥文件）复制到sgdb2中
[oracle@sgdb1 ~]$ scp.ssh/authorized_keys   sgdb2:~/.ssh

oracle@sgdb2's password: oracle的密码
5.18 sgdb1上验证信任
[oracle@sgdb1 ~]$ ssh sgdb2 date

[oracle@sgdb1 ~]$ ssh sgdb 2-privdate     //私有ip地址验证
[oracle@sgdb1 ~]$ ssh sgdb 1date
[oracle@sgdb1 ~]$ ssh sgdb 1-privdate    
5.19 sgdb2上验证信任
[oracle@sgdb2 ~]$ ssh sgdb1 date

[oracle@sgdb2~]$ ssh sgdb 1-priv date    
[oracle@sgdb2 ~]$ ssh sgdb2 date
[oracle@sgdb2~]$ ssh sgdb2-priv date    
5.2 Grid 用户下建立信任
步骤同oracle 一样，可参考oracle用户下设置
5.21创建.ssh目录
在grid用户下操作：
[root@sgdb1 /]# su– grid

[grid@sgdb1 ~]$mkdir .ssh       创建一个.ssh的隐藏目录
[grid@sgdb1 ~]$ ls-al
5.22 sgdb1生成密钥rsa类型
id_rsa为私钥，自动保存到.ssh下
id_rsa.pub为公钥，自动保存到.ssh下
[grid@sgdb1 ~]$ 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@sgdb1
5.23 sgdb1生成密钥dsa类型
id_dsa为私钥，自动保存到.ssh下
id_dsa.pub为公钥，自动保存到.ssh下
  [grid@sgdb1 ~]$ 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@sgdb1
5.24 sgdb2生成密钥rsa类型
id_rsa为私钥，自动保存到.ssh下
id_rsa.pub为公钥，自动保存到.ssh下
 [root@sgdb2 ~]# su – grid

[grid@sgdb2 ~]$ mkdir .ssh
[grid@sgdb2 ~]$ 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@sgdb1
5.25 sgdb2生成密钥dsa类型
id_dsa为私钥，自动保存到.ssh下
id_dsa.pub为公钥，自动保存到.ssh下
[grid@sgdb2 ~]$ 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@sgdb1
5.26为sgdb1配置信任
[grid@sgdb1 ~]$ ls .ssh

id_dsa       id_rsa             id_dsa.pub   id_rsa.pub      known_hosts
[grid@sgdb1 ~]$ cat.ssh/id_rsa.pub >>.ssh/authorized_keys
[grid@sgdb1 ~]$ cat.ssh/id_dsa.pub >>.ssh/authorized_keys
[grid@sgdb1 ~]$ ssh sgdb2  cat .ssh/id_rsa.pub>>.ssh/authorized_keys
grid@sgdb2's password:
[grid@sgdb1 ~]$ ssh sgdb2  cat .ssh/id_dsa.pub >>.ssh/authorized_keys
grid@sgdb2's password: grid的密码
5.27为sgdb2配置信任
可以把sgdb1中的authorized_keys（密钥文件）复制到sgdb2中
[grid@sgdb1 ~]$ scp.ssh/authorized_keys   sgdb2:~/.ssh

grid@sgdb2's password: grid的密码
authorized_keys                             100% 1992     2.0KB/s  00:00 
5.28 sgdb1上验证信任
[grid@sgdb1 ~]$ ssh sgdb2 date

[grid@sgdb1 ~]$ ssh sgdb2-priv date    
[grid@sgdb1 ~]$ ssh sgdb1 date
[grid@sgdb1 ~]$ ssh sgdb 1-priv date    
5.29 sgdb2上验证信任
[grid@sgdb2 ~]$ ssh sgdb1 date

[grid@sgdb2~]$ ssh sgdb1-priv date    
[grid@sgdb2 ~]$ ssh sgdb2 date
[grid@sgdb2~]$ ssh sgdb2-priv date   
 

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