faq-post

Process starvation occurs when a process is indefinitely denied the CPU time, memory, or I/O bandwidth it needs to make progress — not because the resources do not exist, but because the scheduling policy consistently favors other processes. Unlike deadlock, where all competing processes are blocked, starvation allows the system to appear functional while silently […]

XRDP is an open-source implementation of Microsoft's Remote Desktop Protocol (RDP) server for Linux. It enables any RDP-compatible client — including Windows Remote Desktop Connection, Remmina, and FreeRDP — to establish a full graphical desktop session on a remote Linux machine. On Ubuntu 22.04, XRDP acts as a bridge between the RDP client and an […]

The HTTP 413 Request Entity Too Large error is a server-side response status code that occurs when an incoming request body — most commonly a file upload — exceeds the maximum payload size configured at the web server, reverse proxy, or application layer. The server actively rejects the request before processing it, returning a 413 […]

PHP 8.3 is a major minor release of the PHP language that delivers significant improvements to the JIT compiler, type system, readonly properties, and core array/string functions. Released on November 23, 2023, it introduces typed class constants, json_validate(), array_is_list() refinements, Randomizer additions, and deep-cloning of readonly properties — changes that directly affect application performance, code […]

Transferring a domain name to a new registrar is one of the most consequential administrative tasks a website owner or systems administrator performs. Done correctly, it is seamless and causes zero downtime. Done incorrectly, it can result in DNS propagation failures, locked domains, expired authorization codes, or even accidental service interruptions lasting days. This guide […]

Creating a new folder in Ubuntu is done primarily with the mkdir command in the terminal. The basic syntax is mkdir folder_name, which instantly creates a directory in your current working location. For nested structures, mkdir -p parent/child/grandchild creates the entire path in a single operation, even if intermediate directories do not yet exist. This […]

The error "SET PASSWORD has no significance for user 'root'@'localhost'" occurs in MySQL when the server refuses to process a SET PASSWORD command for the root account — typically because the root user is authenticated via the auth_socket or unix_socket plugin rather than a traditional password-based method. In these configurations, MySQL delegates authentication to the […]

Monitoring RAM usage in Linux means querying the kernel's memory subsystem to retrieve metrics on physical memory allocation, swap utilization, and per-process resident set sizes. The most direct methods use built-in utilities — free, top, htop, ps, vmstat, and smem — each exposing a different layer of the memory hierarchy, from system-wide totals down to […]

Nameservers (NS records) are the authoritative DNS pointers that tell the global DNS infrastructure which servers hold the definitive zone file for your domain. Without correctly configured NS records, your domain cannot resolve — regardless of how well-configured your web server, mail system, or SSL certificates are. This guide covers AlexHost's specific nameserver infrastructure, explains […]

A Virtual Private Server (VPS) or dedicated server grants you root-level control over a virtualized or physical computing environment — but that control operates within a defined legal and operational boundary. AlexHost's acceptable use policy (AUP) codifies exactly where those boundaries lie, what constitutes a violation, and why each restriction exists from both a technical […]