非22端口 ssh22端口 秘鑰

ssh鏈接：

ssh [email protected]

ssh -p 22222 [email protected]

輸入密碼登陸

ssh不用收入密碼建立密鑰

1、生成秘鑰

[[email protected] logs]# ssh-keygen
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:
6b:45:21:25:cf:b2:0d:ac:cd:28:d6:1a:a2:32:82:41 [email protected]
The key‘s randomart image is:
+--[ RSA 2048]----+
| o.o |
| . = . |
| E + + |
|. . = * |
|. . + + S o |
|.o o + o |
|* . o |
|o. . |
| |
+-----------------+
2、22號端口把秘鑰發過去

[[email protected] logs]# ssh-copy-id -i ~/.ssh/id_rsa.pub [email protected]

[email protected] password:

3、非22號端口把秘鑰發過去

[[email protected]