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MiracleLinux8.4 : SSH public key cryptography setting

Public key

1.Create a key pair with RSA

Become an ordinary user and create a key pair with RSA

2.Private Key Login Settings

Restart SSH

Copy the private key to the client PC (using WinSCP) Configure WinSCP settings

①Start WinSCP, set the following in "New Site", and click "Save".
Host name : Server IP address
Port number :  SSH port number
User name : User name
Password :  User password

Give the connection a name of your choice.

You will return to the following screen and click "Login.

When the following screen appears, click "Update.

In the following screen, enter the user's password in "Password".

Copy the id_rsa in the /home/user/.ssh directory to the desired location on the windows side (select id_rsa, drag it to the left side and copy it).

3.Change to login only with private key

Restart SSH

4.Creating a private key using PuTTYgen

Launch Winscp and start puttygen.exe from Tools

Click Load to open the Open File dialog box, change the file type to [ All Files (*. Change the file type to [ All Files (*. *) ] and load the private key id_rsa transferred from the Linux server.

Enter the passphrase that you entered when you created your private key.

When the following message is displayed, click the [ OK ] button.


Click the [ Save private key ] button to save the private key.

In this case, save it as id_rsa.ppk (in Windows).

Connect to an SSH server using a private key
Start Winscp, specify the target server, and open "Edit", "Advanceds", and "Authentication" in that order.
Specify id_rsa.ppk saved in windows in the "Private Key" field.

Enter the passphrase that you entered when you created the private key on the server side.

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