場景

由於在 coding 和 github 上面都託管著專案，在實際應用中不想每次進行程式碼提交和程式碼拉取時輸入賬號密碼，但由於git 上面和coding的賬號不一致，導致配置完一個，另一個平臺的賬號就無法使用的情況。

解決方案

1. 生成簽名
2. 修改 ssh_config （mac 的位置：/etc/ssh/ssh_config）
3. 添加簽名 ssh-add
4. 測試配置結果

生成簽名

ssh-keygen -t rsa -C "coding"
ssh-keygen -t rsa -C "github"

修改ssh_config

Host github
 Hostname github.com
 

 Port 22
 User yyy
 IdentityFile /Users/xxx/.ssh/github_yyy

Host coding
 Hostname coding.net
 Port 22
 User xxx
 IdentityFile /Users/xxx/.ssh/coding_xxx

添加簽名

ssh-add /Users/xxx/.ssh/github_yyy
ssh-add /Users/xxx/.ssh/coding_xxx

測試配置結果

ssh -T git@github.com
Hi yyy! You've successfully authenticated, but GitHub does not provide shell access.

ssh -T 
 
[email protected]
Hello xxx! You've connected to Coding.net via SSH successfully!

常見問題:
1、修改 http 請求為 ssh

➜  laravel_exam git:(master) git push origin master
remote: Permission to xxx/laravel_exam.git denied to XXX.
[core]
fatal: unable to access 'https://github.com/xxx/laravel_exam.git/': The requested URL returned error: 403
 

➜  laravel_exam git:(master) ssh -T [email protected]
Hi xxx! You've successfully authenticated, but GitHub does not provide shell access.
➜  laravel_exam git:(master) git remote -v
origin  https://github.com/xxx/laravel_exam.git (fetch)
origin  https://github.com/xxx/laravel_exam.git (push)

➜  laravel_exam git:(master) git remote set-url origin [email protected]:xxx/laravel_exam.git

➜  laravel_exam git:(master) git remote -v
origin  [email protected]:xxx/laravel_exam.git (fetch)
origin  [email protected]:xxx/laravel_exam.git (push)