环境：Mac
我的ssh_keys：～/.ssh/id_rsa.pub

1. 生成ssh keys

打开命令行
ssh-keygen -t rsa -C 'XXX@XX.com'
-C的参数是邮箱地址，然后回车

一通操作下来我的ssh_keys是～/.ssh/id_rsa.pub

  1. cd ~/.ssh
  2. cat id_rsa.pub

2. 修改ssh_config

打开命令行修改config设置

  1. cd /etc/ssh
  2. sudo vim ssh_config # 这个需要有sudo权限

在ssh_config文件的Host块中新增两行

  1. IdentityFile ~/.ssh/your_private_key_filename #这里填自己的ssh_keys文件信息
  2. UseKeychain yes

最后填完的样子我的是这样：

  1. Host *
  2.         SendEnv LANG LC_*
  3.         IdentityFile ~/.ssh/id_rsa
  4.         UseKeychain yes

需要说明的是不能写成IdentityFile ~/.ssh/id_rsa.pub，.pub是不能加的，会提示

  1. Permissions 0644 for '/Users/XXX/.ssh/id_rsa.pub' are too open.
  2. It is required that your private key files are NOT accessible by others.
  3. This private key will be ignored.
  4. Load key "/Users/XXX/.ssh/id_rsa.pub": bad permissions
  5. Permission denied, please try again.