每天一个linux命令--ssh的host配置用户名密码

向右看齐 2023-06-02 07:53 7阅读 0赞

1、在终端输入 `cd ~/.ssh/`

vi config

输入服务器的用户名和密码

souche@kickseed:~/.ssh$ cat config 
    # 这是跳板机的配置，给跳板机的 IP 起个别名: jump_machine, 用户名: owen
    Host feature
       HostName 172.III.III.III
       User XXX

2、生成 rsa 公钥和私钥: `ssh-keygen -t rsa`

tip：如果ssh的目录下面已经有公钥，就不用生成了

souche@kickseed:~/.ssh$ ssh-keygen -t rsa
    Generating public/private rsa key pair.
    Enter file in which to save the key (/home/souche/.ssh/id_rsa): 1HyKxJHtKz
    1HyKxJHtKz already exists.
    Overwrite (y/n)? y
    Enter passphrase (empty for no passphrase): 
    Enter same passphrase again: 
    Your identification has been saved in 1HyKxJHtKz.
    Your public key has been saved in 1HyKxJHtKz.pub.
    The key fingerprint is:
    SHA256:PRQmfxrHWuWM5QgqTwd3OIsD8gPq70mf8JCzerVPzw8 souche@kickseed
    The key's randomart image is:
    +---[RSA 2048]----+
    |        o =.. o  |
    |    o .  Bo= O   |
    |   . +..o.=oB +  |
    |  .   o+o+.B     |
    | .     .S.=      |
    |  .  ..    .     |
    |   .*. .. E      |
    |   .oO.o o .     |
    |  .++ +.. o..    |
    +----[SHA256]-----+
    souche@kickseed:~/.ssh$

3、 ssh-copy-id -i    密钥文件   用户别名@服务器别名

souche@kickseed:~/.ssh$ ssh-copy-id -i id_rsa.pub  souche@feature
    /usr/bin/ssh-copy-id: INFO: Source of key(s) to be installed: "id_rsa.pub"
    /usr/bin/ssh-copy-id: INFO: attempting to log in with the new key(s), to filter out any that are already installed
    /usr/bin/ssh-copy-id: INFO: 1 key(s) remain to be installed -- if you are prompted now it is to install the new keys
    souche@172.17.41.58's password: 
    
    Number of key(s) added: 1
    
    Now try logging into the machine, with:   "ssh 'souche@feature'"
    and check to make sure that only the key(s) you wanted were added.
    
    souche@kickseed:~/.ssh$ ssh-copy-id -i id_rsa.pub  souche@eva

转载于:https://www.cnblogs.com/wanghongye/p/11423950.html