User privilege management is a critical aspect of Linux system administration, especially when granting users the permissions required to perform administrative tasks securely. Although Linux systems are designed with a clear separation between regular user accounts and the superuser (root), there are situations where a user needs elevated privileges without being given unrestricted root access. […]
Configuring network settings in VirtualBox is essential to enable communication between your virtual machines (VMs), the host machine, and external networks. VirtualBox provides several networking modes designed to suit different use cases. This guide explains how to properly configure networking in VirtualBox. Understanding Network Modes in VirtualBox VirtualBox offers multiple network modes, each serving a […]
The cron utility on Unix-like operating systems allows users to schedule tasks (commands or scripts) to run automatically at specific times or intervals. Whether you are maintaining a server or managing automated tasks on a local machine, cron is an essential tool for system administrators and developers. This article explains how to view and list […]
Symbolic links, commonly known as symlinks or soft links, are powerful tools in Linux that allow users to create references to other files or directories. Instead of copying actual data, a symlink acts as a pointer, making file management and access more efficient. They are essential for tasks such as redirecting applications to specific resources, […]
How to Install VMware Tools on Ubuntu VMware Tools is a set of utilities that improves the performance and management of virtual machines running on VMware platforms. Installing VMware Tools on an Ubuntu virtual machine provides enhanced graphics performance, better mouse integration, and easier file sharing between the host and guest operating systems. Below is […]
The DNS_PROBE_FINISHED_NXDOMAIN error is a common issue that occurs when your browser cannot resolve a domain name. This means that the DNS (Domain Name System) lookup failed, and your browser could not find the IP address associated with the website you are trying to access. This can be caused by issues with your internet connection, […]
Create a Telegram Bot on AlexHost VPS for Automated Tasks Why create a bot on AlexHost? Automating tasks with a Telegram bot is simple and efficient. AlexHost’s VPS with NVMe storage, root access, and DDoS protection ensures fast, secure bot deployment. This guide details setting up a bot to check IPv4 blacklists on AlexHost. Preparing […]
How to Enable Root Login via SSH on Ubuntu By default, Ubuntu disables root login over SSH for security reasons. This restriction helps protect servers from unauthorized access, as the root account has full control over the system. However, in certain situations—such as troubleshooting or performing advanced administrative tasks—it may be necessary to enable root […]
IPKVM (short for Internet Protocol Keyboard, Video, and Mouse) is a remote server management tool that allows administrators to access and control a server as if they were physically present. It provides access to the server’s keyboard, video, and mouse functions over an IP network. This capability is particularly useful for managing servers that are […]
Creating a Windows 7 virtual machine using VirtualBox is an excellent solution for users who need to run legacy software or test applications in a Windows environment. This guide explains how to use a preconfigured Windows 7 virtual machine in VirtualBox, allowing you to work with Windows 7 without a physical installation. 1. Understanding VirtualBox […]