1. .ssh文件夹下建立config文件：

   # 84
   
   Host 172.28.10.84
   
   HostName 172.28.10.84
   
   PreferredAuthentications publickey
   
   IdentityFile ~/.ssh/id_rsa_84

2. 执行ssh-agent让ssh识别新的私钥

   ssh-add ~/.ssh/id_rsa_84
   
   该命令如果报错：Could not open a connection to your authentication agent.无法连接到ssh agent，可执行ssh-agent bash命令后再执行ssh-add命令

See also

• git常用命令