Reset Root Password VM
Introduction
This article provides a step-by-step guide on how to reset the root password for a virtual machine (VM). It covers key concepts such as SSH, terminal commands, and file editing.
Prerequisites
Before proceeding, ensure you have access to the VM and its console or command line interface.
SSH (Secure Shell)
SSH is a network protocol used for secure data communication, remote command-line execution, and other secure network services between two networked devices.
Terminal Commands
Terminal commands are text-based commands entered in the command-line interface (CLI) to perform various tasks on the system.
File Editing
File editing involves modifying the content of files using a text editor in the command-line interface.
Steps to Reset Root Password
- Boot the VM and access the command-line interface.
- Switch to the root user using the 'su' command.
- Edit the 'passwd' file using a text editor like 'nano' or 'vi'.
- Enter the new password and confirm it.
- Save and exit the file.
- Log out and log back in using the new password.
Code Blocks
// Example command to switch to root user
su -
// Example command to edit the 'passwd' file
nano /etc/passwd
- Book: Linux Command Line and Shell Scripting Bible, 5th Edition
- Article: How to Reset the Root Password on a Linux Server (DigitalOcean)
- Online Resource: Reset Root Password on Linux (Ubuntu, CentOS, Fedora, Debian)