ssh免密登录

最新推荐文章于 2025-05-13 20:22:54 发布

原创最新推荐文章于 2025-05-13 20:22:54 发布 · 147 阅读

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#ssh #免密

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1.在免密登陆的客户端机器上执行ssh-keygen创建公钥，一直回车

[root@localhost ~]# ssh-keygen -t rsa
Generating public/private rsa key pair.
Enter file in which to save the key (/root/.ssh/id_rsa):
Created directory '/root/.ssh'.
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:
d8:f3:ff:e9:85:b2:5b:27:21:33:b3:0f:c2:e0:7b:98 root@localhost.localdomain
The key's randomart image is:
+--[ RSA 2048]----+
|                 |
|                 |
|                 |
|       o         |
|      . S   = .  |
|       . =   * o |
|        .o+ + + o|
|        E..o * = |
|        ..  ++=  |
+-----------------+

[root@localhost ~]# cd .ssh
[root@localhost .ssh]# ls
id_rsa id_rsa.pub known_hosts
[root@localhost .ssh]# cp id_rsa.pub authorized_keys

2.将公钥authorized_keys拷贝到免密登陆的目标机器上

[root@localhost .ssh]# scp authorized_keys root@目标机器ip:~/.ssh/