Security

Are you looking to change the root password in Ubuntu? Changing passwords is a good practice and should be done periodically. Linux allows multiple user accounts, each having its own password. Users can only change their own password. However, there is always a sudo/root (SuperUser) account. Root users can change the password of any account, including their own.

Learn how to use the su command with practical examples and explanations. Change users in the terminal window or switch to the root in a single step. This article tells you all you need to know about su.

This tutorial shows how to install Nmap on a Linux-based system and use it to retrieve valuable information from remote systems.

The Nmap hosted security tool can help you determine how well your firewall and security configuration is working. This guide will show you how to scan or check your Linux system for open ports using Nmap.

The sudo command is the preferred means to handle elevated permissions. Standard user accounts are restricted from performing sensitive tasks, such as viewing the contents of the /root directory. This prevents the accidental use of commands with massive consequences. It also makes it more difficult for intruders to compromise a system. If you need to run an administrative command. Sudo – or Super User Do – grants you privileges to run sensitive tasks. The sudo command will grant elevated permissions for 15 minutes. This guide will show you how to create a new user on Ubuntu and provide sudo access.

RPM is a package format used by Red Hat based derivatives like CentOS, RHEL or Fedora. In this tutorial, learn how to install .rpm packages on Ubuntu.

OpenSSL is an open-source cryptographic library and SSL toolkit. This article explains how to determine the OpenSSL version by running a single command.

With over 600 preinstalled penetration-testing programs, Kali Linux earned a reputation as one of the best-operating systems used for security testing. Installing Kali as a VM on a type 2 hypervisor such as VirtualBox provides the isolation and rollback capabilities necessary for advanced security testing. This article shows you how to install Kali Linux on Virtual Box.

The .htaccess file in WordPress is a configuration file for managing hyperlinks. It is most commonly used to rewrite URLs, making them clearer and more readable by both people and search engines. This file is included by default in a new WordPress installation. This guide will help you find, modify, and create a .htaccess file for WordPress.

If you are using Debian 9 or Debian 10 to manage servers, you must ensure that the transfer of data is as safe as possible. This tutorial covers the necessary steps you need to take to establish a secure connection with a remote machine by using SSH.