通过SSH连接到GitHub#

SSH ➤ Github#

一、生成SSH密钥🔑#

尚未在本地计算机上生成SSH密钥🔑对

ssh-keygen -t rsa -b 4096 -C "lg295060456@gmail.com"

Last login: Sat Jan 17 14:20:11 on ttys000
➜  Desktop ssh-keygen -t rsa -b 4096 -C "lg295060456@gmail.com"
Generating public/private rsa key pair.
Enter file in which to save the key (/Users/jobs/.ssh/id_rsa): 
Enter passphrase for "/Users/jobs/.ssh/id_rsa" (empty for no passphrase): 
Enter same passphrase again: 
Your identification has been saved in /Users/jobs/.ssh/id_rsa
Your public key has been saved in /Users/jobs/.ssh/id_rsa.pub
The key fingerprint is:
SHA256:Fdvu/MXEYvmoomwjooZvPoR3gX1FlvmYrmmubfZDs7A lg295060456@gmail.com
The key's randomart image is:
+---[RSA 4096]----+
|       .oo.      |
|       .+  +     |
|   o   . +o .    |
|  . o . o...   o |
| .   o .S   . + o|
|. o . . +  o . * |
| + .   * o  o . +|
|. + ..E.= .  o . |
| =+o.Bo+++ .. .  |
+----[SHA256]-----+

二、确认 id_rsa 真的存在 & 权限正确#

ls -la ~/.ssh/id_rsa ~/.ssh/id_rsa.pub
chmod 600 ~/.ssh/id_rsa
chmod 644 ~/.ssh/id_rsa.pub

三、把 github.com 的 key 明确写进 ~/.ssh/config#

• 建立~/.ssh/config并赋权

  mkdir -p ~/.ssh
  touch ~/.ssh/config
  chmod 600 ~/.ssh/config

• 打开 open ~/.ssh/config

  open ~/.ssh/config

• 编辑 ~/.ssh/config

  IdentitiesOnly yes 很关键：强制只用你指定的 key，避免 Sourcetree/ssh 乱试其它 identity 导致失败或卡住。

  Host github.com
    HostName github.com
    User git
    IdentityFile ~/.ssh/id_rsa
    IdentitiesOnly yes
    AddKeysToAgent yes
    UseKeychain yes

四、id_rsa ➤ macOS Keychain + agent#

让 GUI 程序也能用

ssh-add --apple-use-keychain ~/.ssh/id_rsa
ssh-add -l

五、添加SSH密钥🔑 ➤ SSH代理#

• 运行以下命令来将生成的SSH密钥添加到SSH代理，以便您可以在不重复输入密码的情况下使用它：

eval "$(ssh-agent -s)"
ssh-add ~/.ssh/id_rsa

➜  Desktop eval "$(ssh-agent -s)"
ssh-add ~/.ssh/id_rsa
Agent pid 9880
Identity added: /Users/jobs/.ssh/id_rsa (lg295060456@gmail.com)

六、添加公钥🔑 ➤ Github#

• 打开~/.ssh/id_rsa.pub文件并复制其中的内容

  pbcopy < ~/.ssh/id_rsa.pub

• 然后登录到 https://github.com/settings/ssh/new

  open https://github.com/settings/ssh/new

• 转到您的帐户设置，点击SSH and GPG keys

• 然后点击New SSH key

• 将复制的公钥内容粘贴到"Key"字段中，并为该密钥提供一个标题

  cat ~/.ssh/id_rsa.pub

  ➜  Desktop cat ~/.ssh/id_rsa.pub
  ssh-rsa AAAAB3NzaC1yc2EAAAADAQABAAACAQC09QFwwcZOnwX5qfiHdYqPNispoWiC72iOMdPk+xX30uvpgDZCUPCD9tWZi5UeoqN0htQLagYjW88EMDTl16pGHZDv9ohCrXyFM7Aer6UJNSWEYf5c2ghvK4zBeoja6X714vtBbI9Vj1L/NcJ61aKsKV/3cYGLFbynHwUrxMm/NbrWa4TV18UCQ0bZN3hwAonr5OWKBGmHIPMYwYoyqm8JQGVVhQWX4WqOjRClOImw/DmGia/NYnU3UeZO+iPCmq5zRLpHkhVm7LK/y/NqAJbZFPgk5E0PScZK8hkbye5UJqUyjHgRzvswT3IqeV2k2mc87icOxVqkqzqNN99nisI5eLV+jyfxVE2+80s8sVSuxRyMonMQBfWO+tO/s0oGDGXJuZ6K9swmk9pphOAOOamMNHqlqN2yN3hL8YtNviCoCTDaxTTswZyrHgXvrE03plAnszxkv2HbniDSldOYa+v9YzMmG6ZJtrlQJN/r7s8jRwhJBb6sBlwqL45B3y0+VOUXr4+Eoc+/A2xy4lOpVaD86B96ks3hm2l1oXMnsoCLJwzLQ25jLcM2rux69DOhGhTw1TvjaRGx22knjDIaTuEDLpuZ20yRCt/xgUaG8oygU3O955jS4Glw3P8wAfKoSf2PlW9tOQn+L/bCdcUho8lmJjueougNvW2keuM9nSoIHQ== lg295060456@gmail.com

  

  

  

七、命令测试SSH连接是否正常#

ssh -T git@github.com