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
可以把node1中的authorized_keys（密钥文件）复制到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
详细操作如下：
[grid@node1 ~]$ ssh node2date
Thu May 214:46:30 CST 2013
[grid@node1 ~]$ sshnode2-priv date //不要输入密码为信任成功
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
声明：
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