Blog - DED9

How to Install Issabel and Connect a Phone Number: A Complete Walkthrough

Erfan Internet Oktober 26, 2026

Issabel is an open-source unified communications platform built on top of Asterisk. It bundles the operating system, the Asterisk engine, and a web administration interface into a single installable image, which means you get a…

How to Choose the Right RAID for Your Server

Erfan Server September 8, 2026

Every server build eventually reaches the same fork in the road. You have a handful of drives, a controller, and a decision to make about how those drives should work together. Get it right, and…

Backup vs Snapshot: What’s the Real Difference, and When Should You Use Each?

Erfan Server September 6, 2026

If you’ve ever run a server, you know the half-second of hesitation before clicking „update.“ And you’ve probably heard two pieces of advice given in the same breath: take a snapshot first, and make sure…

PHP 8.4: A Full Review and What It Means for WordPress

Erfan PHP August 27, 2026

PHP 8.4 arrived on 21 November 2024. Nearly two years later, it has settled into the role most PHP releases eventually take: not the newest branch, not the oldest supported one, but the version a…

What Is Redis Object Cache? A Practical Guide

Erfan Database August 27, 2026

If you run a database-driven website — WordPress, Drupal, Magento, a custom Laravel app — you have probably hit the same wall. The site feels fine with ten visitors and grinds to a crawl with…

What Is HTTP/3? A Technical Guide to QUIC, Streams and Real-World Deployment

Erfan Web August 20, 2026

HTTP/3 is the third major revision of the Hypertext Transfer Protocol, standardized as RFC 9114 in June 2022. Its defining change is not in HTTP semantics—methods, status codes, and header fields are the same as…

The Best VPS to Implement Artificial Intelligence

Erfan Artificial Intelligence August 11, 2026

Ask ten developers which VPS is best for artificial intelligence, and you’ll get ten different answers, most of them wrong — not because the providers are bad, but because „AI workload“ describes everything from a…

CloudLinux or AlmaLinux? Choosing the Right Server OS

Erfan Linux August 9, 2026

Picking a server operating system feels like a small decision on day one. It isn’t. That choice quietly shapes your stability, your security posture, your support workload, and your monthly costs for years afterward. If…

What Is Coolify and How Does It Replace cPanel?

Erfan Control Panel Juli 28, 2026

For twenty years, „getting a website online“ meant logging into cPanel. You bought hosting, you got an orange-and-blue dashboard full of icons, and you uploaded your files. That model still works — but it was…

What Is Edge Hosting and How Is It Different From Cloud Hosting?

Erfan Hosting Juli 22, 2026

The way we deliver websites, applications, and digital services has changed dramatically over the past two decades. For a long time, cloud hosting was the default answer for almost any project — you spun up…