Configure SSH certificate login

1、 Generate Certificate
cd To home/.ssh Catalog , without ,mkdir .ssh Create a .
ssh-keygen Enter all the way , Generate Certificate .
cat id_rsa > authorized_keys
Modify file permissions to 0600
2、 Copy the private key to the computer host
Copy id_rsa To your computer host .ssh Catalog . The file name does not change .
Modify the authority to 0600
At this time, you can log in directly with a certificate