ECS settings SSH key login

1. The client generates public and private keys ssh-keygen -t rsa -b 4096 -C "[email protected]"
2. Upload public key to server scp ~/.ssh/id_rsa.pub [email protected] Server address :/root
3. Log in to the server
4. establish .ssh file mkdir /root/.ssh
5. create a file cd /root/.ssh touch authorized_keys
6. Add the private key cat id_rsa.pub >> /root/.ssh/authorized_keys
7. Add permissions chmod -R 700 .ssh

# ssh The configuration file is located in 
vim /etc/ssh/sshd_config
 
#  restart ssh
systemctl restart sshd.service

Reference documents

https://developer.aliyun.com/article/641091

Pay attention to chown Is to change the owner ,chmod Is to change permissions