服務器

1.檢查并安裝pssh，yum list pssh

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2.因為沒有配置免秘鑰登陸，pssh命令執(zhí)行失敗。

[root@bogon ]# pssh -H root@192.168.245.129 -i uptime
[1] 11:00:36 [FAILURE] root@192.168.245.129 Exited with error code 255
Stderr: The authenticity of host \'192.168.245.129 (192.168.245.129)\' can\'t be established.
RSA key fingerprint is 84:2d:70:33:1c:45:fa:e6:4b:94:72:7e:10:98:7c:a8.
Are you sure you want to continue connecting (yes/no)? 
Host key verification failed.

3.生成秘鑰。

[root@bogon tmp]# ssh-keygen -t rsa
Generating public/private rsa key pair.
Enter file in which to save the key (/root/.ssh/id_rsa): 
Enter passphrase (empty for no passphrase): 
Enter same passphrase again: 
Your identification has been saved in /root/.ssh/id_rsa.
Your public key has been saved in /root/.ssh/id_rsa.pub.
The key fingerprint is:
9e:14:9a:cc:8d:9b:fd:51:c5:68:24:e1:ce:c6:d7:33 root@bogon
The key\'s randomart image is:
+--[ RSA 2048]----+
|     o..  |
|     . o o  |
|    . . o o |
|   o = = . o  |
|   * S = o E |
|    * o o  o |
|   o + .   |
|     . .   |
|     .   |
+-----------------+

[root@bogon .ssh]# ll
total 8
-rw------- 1 root root 1675 Aug 22 11:06 id_rsa
-rw-r--r-- 1 root root 392 Aug 22 11:06 id_rsa.pub

4.拷貝到被管對象。

[root@bogon .ssh]# ssh-copy-id -i /root/.ssh/id_rsa.pub root@192.168.245.129
The authenticity of host \'192.168.245.129 (192.168.245.129)\' can\'t be established.
RSA key fingerprint is 84:2d:70:33:1c:45:fa:e6:4b:94:72:7e:10:98:7c:a8.
Are you sure you want to continue connecting (yes/no)? yes
Warning: Permanently added \'192.168.245.129\' (RSA) to the list of known hosts.
reverse mapping checking getaddrinfo for bogon [192.168.245.129] failed - POSSIBLE BREAK-IN ATTEMPT!
root@192.168.245.129\'s password: 
Now try logging into the machine, with ssh \'root@192.168.245.129\', and check in:
 .ssh/authorized_keys
to make sure we haven\'t added extra keys that you weren\'t expecting.

5.pssh命令執(zhí)行成功。

[root@bogon .ssh]# pssh -H root@192.168.245.129 -i uptime
[1] 11:10:39 [SUCCESS] root@192.168.245.129
 20:10:39 up 2:07, 1 user, load average: 0.00, 0.00, 0.00

總結

以上就是這篇文章的全部內容了，希望本文的內容對大家的學習或者工作具有一定的參考學習價值，謝謝大家對創(chuàng)新互聯(lián)的支持。如果你想了解更多相關內容請查看下面相關鏈接

新聞標題：centos6.5配置ssh免秘鑰登陸執(zhí)行pssh命令的講解
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