Trong NVRAM, chỉ có một tài khoản được lưu trữ, và nó luôn luôn là siêu người dùng. Nó sẽ không hiển thị trong file cấu hình. Nếu một tài khoản của cùng một tên người dùng được thêm vào trong tập tin cấu hình, nó sẽ supercede mật khẩu trong NVRAM. Để thay đổi hoặc thêm một tài khoản không NVRAM, đi vào chế độ cấu hình | Cisco s WebNS Arrow-Point 147 In the NVRAM only one account is stored and it is always superuser. It will not show up in the configuration file. If an account of the same username is added in the configuration file it will supercede the password in the NVRAM. To change or add a non-NVRAM account go into config mode and use the username command lb-l config username tony password test123 If you want the account to have superuser access append the command with superuser. Even if you are just changing an existing user s password you still need to specify superuser or else the account will become a nonsuperuser account lb-l config username tony password test123 superuser To change the NVRAM password use the username-offdm command lb-l config usemame-offdm admin password test123 The command does not appear in the configuration. The information is written only to the NVRM. Recovery of a lost password The NVRAM account is the only account that you can change when you can t log in as an administrative user. To do this boot the machine up with a serial cable attached. You ll be given the chance during the boot-up process to exit into the Offline Diagnostic Monitor menu by hitting any key BootRom. Fast Boot - Skipping DIAGS - BOOTING Reading configuration Checking previous shutdown. .OK Initializing the Press any key to access the Offline Diagnostic Monitor menu. Doing so will bring you to this menu Transferring to menu. . CS-150 Offline Diagnostic Monitor menu Version Build 3 MAIN MENU Enter the number of a menu selection 1 Set Boot Configuration 2. Show Boot Configuration 3 Advanced Options 4. Reboot System 148 Appendix A Quick Command Guide Select option 3 which will bring you to this menu Enter the number of a menu selection 1. Delete a Software Version 2 Security Options 3 Disk Options r. Return to previous menu Select option 2 CS-150 Offline Diagnostic Monitor menu Version Build 3 SECURITY OPTIONS Enter the number of a menu selection 1. Set
