Knowledge Base

Docker is an open-source containerization platform that packages applications and their dependencies into isolated, portable units called containers. Unlike virtual machines, containers share the host OS kernel, making them significantly lighter, faster to start, and more resource-efficient — a critical…

Samba is an open-source implementation of the SMB/CIFS (Server Message Block / Common Internet File System) protocol that enables Linux and Unix-based servers to share files, printers, and other resources with Windows clients — and with other Linux machines. It…

The "Server IP address could not be found" error means your browser submitted a DNS query for a domain name and received no valid IP address in response — so no TCP connection was ever attempted. The root cause is…

Ubuntu's APT package management system is one of the most reliable in the Linux ecosystem, but it is not immune to failure. When `apt-get upgrade`, `apt-get dist-upgrade`, or `do-release-upgrade` throws an error, the root cause almost always falls into one…

smartctl is the primary command-line interface of the smartmontools package, designed to query, test, and interpret S.M.A.R.T. (Self-Monitoring, Analysis, and Reporting Technology) data embedded in the firmware of HDDs, SSDs, and NVMe drives. It communicates directly with drive firmware over…

The `/etc/hosts` file in Linux is a static lookup table that maps hostnames to IP addresses, processed by the operating system *before* any DNS query is sent. By adding or modifying entries in this file, you can override DNS resolution…

A LAMP stack is a proven open-source software bundle consisting of Linux (operating system), Apache (web server), MySQL (relational database), and PHP (server-side scripting language). Together, these four layers form a complete, self-contained environment for building, deploying, and serving dynamic…

In the digital realm, safeguarding your infrastructure begins with a robust hosting solution. AlexHost offers Dedicated Servers equipped with cutting-edge security features, such as DDoS protection, data encryption, and regular backups. These features ensure your systems and sensitive data are…

Windows log files are essential components of the operating system, acting as detailed records of various system events. These logs are crucial for troubleshooting errors, monitoring performance, and ensuring security. For system administrators and advanced users, understanding these logs can…

Apache HTTP Server, often simply called Apache, is a leading web server software used globally. Identifying the version of Apache running on your Linux VPS is crucial for ensuring security, compatibility, and optimal performance. This guide will detail various methods…