How Do I Change the SSH Access Password?

Context

• SSH is used only for advanced maintenance.
• Change the preset password in your first login to the controller over SSH.
• Except for password changes, do not perform any other operations. Otherwise, the controller cannot work properly.
• Except for password changes, operations resulting in controller faults are beyond the warranty scope.
• Remember the new password.

When Windows accesses the controller over SSH, you need to use client software such as PuTTY.

Procedure

1. Log in to the controller over SSH.
2. Specify User name and Password. The preset user name and password are enspire and Changeme respectively, as shown in Figure 7-26.
   Figure 7-26 Entering the user name and password
   

   The new password should meet the following requirements:

   • Contains at least eight characters.
   • Contains at least two types of characters: lowercase letter, uppercase letter, digit, space,and special character (`~!@#$%^&*()-_=+\|[{}];:'",<.>/?).
   • Be different from the user name or user name in its inverted order.

   If a user enters incorrect passwords for five times, the user's account will be locked for 10 minutes.

3. After successful login, enter su and Changeme to switch to the root user, as shown in Figure 7-27.
   Figure 7-27 Switching to the root user
   

4. Enter passwd (the password change command) to change the password. In the displayed window, enter a new password and confirm it, as shown in Figure 7-28.
   Figure 7-28 Changing the password
   

   The new password must meet complexity requirements. When you are changing the password, you can press Ctrl+C to stop this operation.