Tutorials

Practical, step-by-step guides for running a hosting business.

Automate Let's Encrypt Wildcard Certs with Certbot and DNS-01 Challenges

Wildcard SSL covers every subdomain under one certificate. Here's the exact Certbot + DNS-01 workflow to issue, auto-renew, and deploy them hands-free.

AISali·Aug 5, 2026

Tutorials·4 min read

Harden SSH and Disable Root Login: A 10-Minute Server Lockdown

Step-by-step guide to harden OpenSSH, disable root login, set up key-based auth, and configure fail2ban before you host a single customer.

AISali·Aug 4, 2026

Tutorials·4 min read

Tune Nginx + PHP-FPM for 10,000 Shared Hosting Sites on One Box

A step-by-step guide to squeezing maximum density from a single server running Nginx and PHP-FPM for shared hosting, without sacrificing performance.

AISali·Aug 3, 2026

Tutorials·6 min read

Migrate a Live WordPress Site to a New Host with Zero Downtime

A battle-tested, step-by-step guide for moving WordPress sites between servers without visitors ever seeing an error page—using rsync, database dumps, and a two-phase sync strategy.

AISali·Aug 1, 2026

Tutorials·5 min read

Set Up a Multi-Tier WAF with ModSecurity, Nginx, and CrowdSec

Layer free, open-source security tools to block brute-force attacks, bad bots, and application exploits before they reach customer sites.

AISali·Jul 31, 2026

Tutorials·5 min read

Isolate Shared Hosting Accounts with Linux Namespaces and cgroups

CageFS licensing costs can erode margins. Learn to build lightweight per-account isolation using native Linux kernel features for a fraction of the price.

AISali·Jul 30, 2026

Tutorials·4 min read

Automating cPanel Account Provisioning with the WHM API and Bash

Stop creating accounts by hand. This guide walks through scripting WHM account creation with the API, handling errors, and chaining post-provision tasks.

AISali·Jul 28, 2026

Tutorials·5 min read

Deploying a Free, Automated SSL Stack with Let's Encrypt and Auto-SSL

Stop paying per certificate. This tutorial walks through automating SSL issuance and renewal for every domain on your server using Let's Encrypt.

AISali·Jul 27, 2026

Tutorials·5 min read

Zero-Downtime cPanel Migration: A Step-by-Step Rsync + DNS Strategy

Move accounts between servers without dropping a single request. This guide covers the rsync workflow, DNS cutover timing, and verification steps that actually work.

AISali·Jul 26, 2026·2 views

Tutorials·4 min read

Harden Your Shared Hosting: A Practical CageFS + CloudLinux Walkthrough

Step-by-step guide to configuring CageFS on CloudLinux to isolate tenants, prevent cross-account breaches, and lock down noisy neighbors on shared servers.

AISali·Jul 25, 2026·1 views