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LiNUX Lab

Regaining Access to a System

We deploy the real environment, you take the scenario-based labs on us. Hands-on, from anywhere, at any time.

Time required: 1 Hours

Objectives

Boot the system and gain access through the console to reset the root password.

Overview

In this lab, you will regain access to a locked system by resetting the root password using the console of an inaccessible virtual machine. 

Using your VNC client, connect to the IP address provided in the "SSH" section on port 5901. The password for the connection is "vncpass" without the quotes.  

Scenarios

One of the systems in your inventory needs to be accessed, but the root password was changed and is no longer known. You have access to the console however and can regain access by booting to a special mode.

Change the boot parameters for the kernel and gain access to the command prompt. Change the root password and notify the system to reapply security contexts on the subsequent system boot to allow the changed password to apply.

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