Git配置SSH Key

young 564 2022-05-26

github

https://docs.github.com/cn/authentication/connecting-to-github-with-ssh

创建公私钥

# 根据自己的github邮箱创建公公私钥，一路回车即可
[root@101 app]# ssh-keygen -t rsa -b 4096 -C "62yanghuisheng@163.com"
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:
SHA256:eJ4WHeMfMJyEmLdzCXLA0inHPSzh4qlTGLd2EEl4ne0 62yanghuisheng@163.com
The key's randomart image is:
+---[RSA 4096]----+
|   oo*o@ ..      |
|  . =o& Xo .     |
|  ..++.* +B.     |
|   = = .Eoo=     |
|  . * o Soo .    |
|   + . o o . .   |
|  o     +   .    |
|   .   .         |
|                 |
+----[SHA256]-----+
[root@101 app]#

点击github页面左上角头像附近的倒三角，进入Settings，然后点击左边菜单的SSH and GPG keys，进入SSH key的设置页面

github-ssh-1

github-ssh-2

github-ssh-3

github-ssh-4

上面生成公私钥的时候，显示了公私钥的路径

# 私钥
Your identification has been saved in /root/.ssh/id_rsa.
# 公钥
Your public key has been saved in /root/.ssh/id_rsa.pub.

执行命令，获取公钥，粘贴到key这一栏中，title可以描述这个key的作用

cat /root/.ssh/id_rsa.pub

然后点击Add SSH key将SSH key添加进去

gitee

https://gitee.com/help/articles/4191#article-header0

点击Gitee页面右上角头像，进入设置页面，查看邮箱管理中的提交邮箱，生成公钥的方式与github一致，但是邮箱需要使用这里的提交邮箱，从左侧菜单进入SSH公钥页面，将公钥写入
gitee-ssh-1

gitee-ssh-2

gitee-ssh-3

gitlab

点击gitlab页面左上角的头像，选择Settings，然后从左边菜单的SSH keys进入配置页面，生成公钥的方式与github相同

gitlab-ssh-1

gitlab-ssh-2

本地配置多个SSH Key

如果我们在工作中使用的是gitlab，同时又有自己的gitee或者github项目，这事需要在本地同时配置多个SSH key，以方便我们的代码提交和更新。

首先，生成公私钥的时候，需要指定生成的私钥的名称。

生成github的公私钥

ssh-keygen -t rsa -b 4096 -C "62yanghuisheng@163.com" -f ~/.ssh/id_rsa_github

生成gitee的公私钥匙

ssh-keygen -t rsa -b 4096 -C "62yanghuisheng@163.com" -f ~/.ssh/id_rsa_gitee

查看~/.ssh下是否有config文件，如果没有则创建一个

host gitee.com
     Hostname gitee.com
     User yanghuisheng
     IdentityFile ~/.ssh/id_rsa_gitee
host 10.10.200.204
     Hostname 10.10.200.204
     User yanghuisheng
     IdentityFile ~/.ssh/id_rsa
host github.com
     Hostname github.com
     User yanghuisheng
     IdentityFile ~/.ssh/id_rsa_github

# Host : Host可以看作是一个你要识别的模式，对识别的模式，进行配置对应的的主机名和ssh文件
# HostName : 要登录主机的主机名
# User : 登录名
# IdentityFile : 指明上面User对应的identityFile路径
git