Linux under SSH key key login remote server settings

The local user name needs to be the same as the user name of the SSH server

1. Load the private key file on the server
Ssh-add Wang_rsa

2, if the system prompt: Could not open a connection to your authentication agent
Ssh-agent Bash
And then perform the above Ssh-add Wang_rsa

3. Permissions settings for directories and files
The permissions for the. SSH directory must be 700, and the permissions for the private key of the local computer must be set to 600
chmod Wang_rsa
Otherwise, the SSH server will deny login

If the attempt to execute cannot be loaded

Ssh-agent >env.sh 2>&1

chmod +x. Env.ssh
. ./env.sh

Setting the environment variables for Ssh-add

Linux under SSH key key login remote server settings