2.0-Key Verification

1. First generate the public and private keys with Puttygen, save the private key locally, and add the password.

2. Then create the directory in/root. SSH and create the file Authorized_keys file under. ssh

3. Modify Directory Permissions 700 file permissions 600

4. Turn off firewall Setenforce 0 (temporarily off) permanently off in/etc/selinux/config modify selinux=disabled

Empty iptables-f (temporarily emptied) permanently empty service iptables save for saving rules

5. Finally, you can use the Putty private key to log into the system

2.0-Key Verification