liunx普通用户配置免密#yyds干货盘点#

原创

wangzx_mm 2022-02-17 16:52:14 博主文章分类：liunx ©著作权

文章标签 普通用户 文章分类 运维 yyds干货盘点

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第一步：su 到普通用户下面

su - app(app用户)

[root@localhost ~]# su - wzx

第二步：生成密钥 ssh-keygen -t rsa

[wzx@localhost ~]$ ssh-keygen -t rsa

Generating public/private rsa key pair.

Enter file in which to save the key (/home/wzx/.ssh/id_rsa):

Created directory '/home/wzx/.ssh'.

Enter passphrase (empty for no passphrase):

Enter same passphrase again:

Your identification has been saved in /home/wzx/.ssh/id_rsa.

Your public key has been saved in /home/wzx/.ssh/id_rsa.pub.

The key fingerprint is:

SHA256:ktasuInOq1J3I8/dytNgOgbZ5Ae5NenptbUEfW/tMb4 wzx@localhost.localdomain

The key's randomart image is:

+---[RSA 2048]----+

| |

| . . . |

| +++ . . . |

| =+=So . . ..|

| . =o*o* . o o+|

| . ..*.B = + ..oo|

|.. . o*.+ + . ..|

|oo=.o. .oo E.|

+----[SHA256]-----+

第三步:进入到公钥目录cd ~/.ssh

[wzx@localhost ~]$ cd ~/.ssh/

[wzx@localhost .ssh]$ ls

id_rsa id_rsa.pub

第四步:把公钥id_rsa.pub内容复制到另一台普通用户的authorized_keys里面

[wzx@localhost .ssh]$ vi authorized_keys

[wzx@localhost .ssh]$ cat authorized_keys

ssh-rsa AAAAB3NzaC1yc2EAAAADAQABAAABAQCqtZM7MVb2VNfMcu0oGOtItDWttRnQBImnxaAf9KeSl0JJq+blyWgslF/2zWZXJuBw68AZ944n/EtOegWTe/6ZEUo5B/4Yz2N5MOtRLlGwltj4F+YKnUzlC9vLPHbpxPoqmWnO/Cp3rRyYRtOSbGaRbV7PXAaGVIgU6ooeUIhr0Ft2b7VIZK/nDj1+JYCbmz6KB5NDXncQefsjCAX4+orSYTKf/UFbIOz/sAOhDWhxLBIXoGe2qJ6nJaSxtYd5cygI0BXPNl1ZhV2X3U6fuCXYV+uSnUOSuUiYlVoOd28AcQad8B0J/tKmtO8POp5obaRhkipxIPbxir4XJikNkKef wzx@localhost.localdomain

验证是否成功

[root@wangzhenxin-lin01 ~]# scp /root/shell/pid.sh app2@172.16.104.59:root

The authenticity of host '172.16.104.59 (172.16.104.59)' can't be established.

ECDSA key fingerprint is SHA256:4O+GhWnNEr0BKLWvjV9tmxBpmxa0Tj453r4qZ0PO9R0.

ECDSA key fingerprint is MD5:2b:a8:4f:c6:13:d5:ae:35:97:ac:2c:da:a7:d9:04:35.

Are you sure you want to continue connecting (yes/no)? yes

Warning: Permanently added '172.16.104.59' (ECDSA) to the list of known hosts.

app2@172.16.104.59's password:

pid.sh 100% 858 1.1MB/s 00:00

[root@wangzhenxin-lin01 ~]# su - wzx

su: user wzx does not exist

[root@wangzhenxin-lin01 ~]# ll