Knowledge Base

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,…

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,…

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…

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…

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…

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…

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…

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…

Two-factor authentication (2FA) is a security mechanism that requires users to verify their identity through two independent factors before gaining access to an account: something they know (a password) and something they have (a time-based one-time code from an authenticator…

Adding a domain to cPanel means registering an additional domain name within your hosting control panel so that the server knows where to route incoming requests and where to serve files from. In cPanel, this is handled through the Domains…