git ssh-keygen

• 查看帮助
  git help

• 查看状态
  git status

• 查看配置
  git conifg -l

• 增加配置项
  git config [--local|--global|--system] -add section.key value

• 删除配置项
  git config [--local|--global|--system] --unset section.key

• 检查是否已有SSH Key
  cd ~/.ssh

• 生成ssh密钥
  ssh-keygen -t rsa -C "ml_luo@126.com"

• 删除ssh密钥
  $ ssh-add -D

• 异常：Could not open a connection to your authentication agent.
  解决办法：
  $ eval $(ssh-agent -s)

• 增加ssh密钥
  $ ssh-add ~/.ssh/id_rsa_github

  Identity added: /c/Users/Administrator/.ssh/id_rsa_github (/c/Users/Administrator/.ssh/id_rsa_github)

• 查看ssh密钥
  $ ssh-add -l

  2048 SHA256:YfZfL+vo4ADQ8n4v7at5ICzNOTX8MyqDW0tPn/5X3fQ /c/Users/Administrator/.ssh/id_rsa_github (RSA)

• 异常：Permission denied (publickey).
  解决办法：
  将ssh密钥拷贝到github/coding等，并在~/.ssh/增加文件config，文件内容如下：

  Host github.com
  IdentityFile ~/.ssh/id_rsa_github
  Host git.coding.net 
  IdentityFile ~/.ssh/id_rsa_github

• 异常: The authenticity of host '... ...' can't be established
  解决办法：
  $ ssh -vt git@git.coding.net

  ...
  The authenticity of host 'git.coding.net (61.179.108.67)' can't be established.
  RSA key fingerprint is SHA256:jok3FH7q5LJ6qvE7iPNehBgXRw51ErE77S0Dn+Vg/Ik.
  Are you sure you want to continue connecting (yes/no)? yes
  ...

• 验证github
  $ ssh -T git@github.com

  Hi luoml! You've successfully authenticated, but GitHub does not provide shell access.

• 验证coding.net
  $ ssh -T git@git.coding.net

  Hello luoml! You've connected to Coding.net via SSH successfully!