Xshell,putty remotely connect to Linux and use key authentication

• PU TTY key login

1. Software:Putty, PuttyGen

Puttygen click Generate to generate the public and private keys

Two protection, enter the setup password

Click Save private key file.

To save the public key to the server:

MkDir/root/.ssh

chmod 700/root/.ssh

Vi/root/.ssh/authorized_keys

Copy.

Setenforce 0 shutting down the firewall

• Xshell new secret key

Write the secret key two times.

Generate the public key, and then save the public key to the server

VI /root/.ssh/authorized_keys

To add a public key:

Login:

Xshell,putty remotely connect to Linux and use key authentication