Using STelnet to Log In to a Server

Procedure

1. Create an SSH key pair on the SSH client.
   1. Enter the Windows Command Prompt window.

   2. Enter PuTTYGen and click Generate to generate a key pair, as shown in Figure 2.

      Figure 2 PuTTY Key Generator (1)
      

      Move the mouse continuously during the generation of the key pair and move the pointer in the window other than the process bar in green. Otherwise, the progress bar stops, and the generation of the key pair stops as well, as shown in Figure 3.

      Figure 3 PuTTY Key Generator (2)
      

   3. After the key pair is generated, enter the password in the Key passphrase text box and enter the password again in the Confirm passphrase text box. This password is used for the SSH terminal user to log in to the SSH server. Click Save private key, enter private for the name of the private key file, and click Save. Copy the generated public key to the Notepad and name it public.txt.

      Figure 4 PuTTY Key Generator (3)
      

2. Configure the SSH client.

   1. Start the PuTTY.exe program. The PuTTY configuration page as shown in Figure 5 is displayed. For security purposes, using PuTTY 0.58 or later is recommended. Enter the IP address of the SSH server in the Host Name (or IP address) text box.

      Figure 5 SSH client configuration page (1)
      

   2. In the navigation tree on the left of the SSH client configuration page, choose Category > Connection > SSH. The dialog box as shown in Figure 6 is displayed. In the Protocol options area, set Preferred SSH protocol version to 2.

      Figure 6 SSH client configuration page (2)
      

   3. Select Auth in SSH. The dialog box as shown in Figure 7 is displayed. Click Browse to import the private key file private.ppk.

      Figure 7 SSH client configuration page (3)
      

   4. Click Open. If the connection is normal, the system prompts you to enter the user name, as shown in Figure 8.

      Figure 8 SSH client login authentication page