Creating a Virtual Private Server (VPS) using OpenVZ allows administrators to deploy lightweight virtual environments quickly and efficiently. This guide explains how to create, configure, and manage a Debian VPS, install Apache, PHP, MySQL, and deploy phpBB. Create a Debian VPS Using OpenVZ OpenVZ templates are typically stored in: Create a new VPS using the Debian minimal template: Important:Each VPS requires a unique container ID. Here, 157 is used as an example. Configure VPS Startup Enable automatic startup at system boot: Set Hostname and IP Address Assign hostname: Assign IP address: Configure Network and Resources Set socket limits: Add DNS nameservers: Alternatively, edit the container configuration file directly: Start and Access the VPS Start the container: Set the root password: …

Have you ever wondered why, when you access a website through a secure connection, you get a warning that the certificate is not issued by a trusted authority? In most cases, the  exact warning message  that you will get depends on your browser as follows: IE: The security certificate presented by this website was not issued by a trusted certificate authority! Firefox: The certificate is not trusted because the issuer certificate is unknown. (Error code: sec_error_unknown_issuer)

A proxy server is an intermediary application that sits between clients and servers. Instead of connecting directly to a website or service, a client sends requests to the proxy, which then forwards them to the destination server. Proxies are commonly used to: There are proxies for many protocols, including: This article focuses on web proxies, particularly using Squid. Understanding Web Objects and Caching What Are Web Objects? When discussing web proxies and caching, we often refer to objects. A web object can be: Each object is identified by a URL (Uniform Resource Locator). Note: A “web page” typically consists of multiple objects — the HTML file plus images, scripts, and stylesheets. How Caching Works Requests and Responses Here’s what happens …

Performance optimization is an important part of managing PHP applications and web servers. In earlier PHP environments, Alternative PHP Cache (APC) was one of the most widely used caching solutions for improving application speed and reducing server load. APC worked by storing compiled PHP bytecode in shared memory, eliminating the need to recompile PHP scripts on every request. This significantly improved performance for dynamic PHP applications. However, APC is now deprecated and unsupported in modern PHP environments. Today, OPcache and APCu are the recommended alternatives for PHP caching and performance optimization. In this blog, we’ll explain what APC was, how it worked, why it became obsolete, and which modern caching solutions should be used instead. What Is Alternative PHP Cache …

What is a Virtual Private Server? A Virtual Private Server (VPS) is a virtualized environment that runs its own operating system within a physical server. While multiple users share the same hardware resources like CPU and RAM, these resources are allocated in a way that ensures consistent performance—similar to a dedicated server. Each user receives a defined portion of resources, meaning your allocated capacity remains available to you at all times. As a result, every VPS functions independently and behaves like a dedicated server. For example, a physical server with 2GB RAM, 100GB storage, and dual 2GHz processors may host 10 VPS instances. In such a setup, each VPS could be allocated 200MB RAM, 10GB disk space, and an equivalent …