SSH配置Linux免密登录
程序员文章站
2022-04-30 12:11:27
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有一台Linux服务器,当我在本地的电脑上通过git上传代码到这台Linux服务器时,希望实现免密登录,就需要用到SSH秘钥,
首先,你需要确认自己是否已经拥有**。 默认情况下,用户的 SSH **存储在其 ~/.ssh
目录下,打开git,输入命令:
$ cd ~/.ssh $ ls id_dsa
id_dsa.pub
known_hosts
其中id_dsa
是私钥,id_dsa
.pub
是你的公钥,如果找不到这样的文件(或者根本没有 .ssh
目录),你可以通过运行 ssh-******
程序来创建它们:
$ ssh-****** Generating public/private rsa key pair. Enter file in which to save the key (/home/schacon/.ssh/id_rsa): Created directory '/home/schacon/.ssh'. Enter passphrase (empty for no passphrase): Enter same passphrase again: Your identification has been saved in /home/schacon/.ssh/id_rsa. Your public key has been saved in /home/schacon/.ssh/id_rsa.pub. The key fingerprint is: d0:82:24:8e:d7:f1:bb:9b:33:53:96:93:49:da:9b:e3 [email protected]
首先 ssh-******
会确认**的存储位置(默认是 .ssh/id_rsa
),然后它会要求你输入两次**口令。如果你不想在使用**时输入口令,将其留空即可。
查看公钥具体内容:
$ cat ~/.ssh/id_rsa.pub ssh-rsa AAAAB3NzaC1yc2EAAAABIwAAAQEAklOUpkDHrfHY17SbrmTIpNLTGK9Tjom/BWDSU GPl+nafzlHDTYW7hdI4yZ5ew18JH4JW9jbhUFrviQzM7xlELEVf4h9lFX5QVkbPppSwg0cda3 Pbv7kOdJ/MTyBlWXFCR+HAo3FXRitBqxiX1nKhXpHAZsMciLq8V6RjsNAQwdsdMFvSlVK/7XA t3FaoJoAsncM1Q9x5+3V0Ww68/eIFmb1zuUFljQJKprrX88XypNDvjYNby6vw/Pb0rwert/En mZ+AW4OZPnTPI89ZPmVMLuayrD2cE86Z/il8b+gw3r3+1nKatmIkjn2so1d01QraTlMqVSsbx NrRFi9wrf+M7Q== [email protected]
然后就是远程免密登录的配置,介绍两种常用方法:
方法一:
通过 ssh-copy-id 命令设置,最后一个参数是我们要免**登录的服务器 ip 地址。
ssh-copy-id -i ~/.ssh/id_rsa.pub 192.168.1.1
方法二:
通过手工复制,将本地 id_rsa.pub 文件的内容复制到远程服务器的 /.ssh/authorized_keys 文件中也完全可以的
$ cd .ssh $ ls authorized_keys id_rsa id_rsa.pub known_hosts $ vi authorized_keys
到此,SSH免**登录就大功告成。