Linux免密码登录

╰+攻爆jí腚メ 2022-04-12 06:09 321阅读 0赞

两台虚拟服务器：  
192.168.0.110  
192.168.0.109  
1、创建秘钥（登录的110服务器）

ssh-keygen -t rsa

--------------------

[root@bogon ~]# 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:
    57:48:c1:0a:90:2c:e7:be:51:77:d1:4a:a4:5a:65:7d root@bogon
    The key's randomart image is:
    +--[ RSA 2048]----+
    |   ..o   o*+     |
    |  . + .  =+.o E  |
    |   +   .oo.o..   |
    |    . .oo o.     |
    |   . ...S..      |
    |    o    .       |
    |     o           |
    |    .            |
    |                 |
    +-----------------+
    [root@bogon ~]#

2、然后可以看到当前目录下会有.ssh文件夹，秘钥就在其中  
![在这里插入图片描述][20181201235434575.png]

3、将id\_rsa.pub放到目标机子（109）上

ssh-copy-id -i ~/.ssh/id_rsa.pub root@192.168.0.109

![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3poYW5ndHhzaXI_size_16_color_FFFFFF_t_70]  
4、ssh登录109

ssh root@192.168.0.109

![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3poYW5ndHhzaXI_size_16_color_FFFFFF_t_70 1]

[20181201235434575.png]: /images/20220412/612e55449be54ac198ca107895439045.png
[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3poYW5ndHhzaXI_size_16_color_FFFFFF_t_70]: /images/20220412/49d95c71fa0b4f98a6e468eb583136d1.png
[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3poYW5ndHhzaXI_size_16_color_FFFFFF_t_70 1]: /images/20220412/2039a1fec48e47e4977ba8fe1f6993cc.png