今天更新一下项目的库，尴尬的发现
permission denied (publickey)
原因
- 没有
ssh key ssh key过期失效
进入存储证书的文件夹
cd ~/.ssh/
查看公钥
more id_ras.pub
如果有的话基本是 ssh key 失效，没有的话就更不用说了～
解决方法
重新生成一个新的 ssh key ，将新的ssh key添加到 github
生成
生成指令如下
ssh-keygen -t rsa -b 2048
回车后会看见
Generating public/private rsa key pair.
Enter file in which to save the key (/Users/XXXX/.ssh/id_rsa):
如果已经存在了，就会提示是否覆盖
/Users/XXXX/.ssh/id_rsa already exists.
Overwrite (y/n)?
下一步会看到设置密码，这个密码在你提交代码到git时会用到。
Enter passphrase (empty for no passphrase):
下一步是确认密码
Enter same passphrase again:
生成成功
Your identification has been saved in /Users/XXXX/.ssh/id_rsa.
Your public key has been saved in /Users/XXXX/.ssh/id_rsa.pub.
The key fingerprint is:
SHA256:XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX XXXX@XXXX.local
The key's randomart image is:
+---[RSA 2048]----+
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+----[SHA256]-----+
添加
cd ~/.ssh/
more id_ras.pub
把输出的 ssh 记下来
现在 git clone 需要输入密码，如果关联了很多库就要输入很多次，解决方法是把 id_rsa 添加到 keychain 。
ssh-add -K ~/.ssh/id_rsa
