Tutorials·5 min readAutomate Let's Encrypt Wildcard Certs with Certbot and DNS-01 ChallengesWildcard 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 readHarden SSH and Disable Root Login: A 10-Minute Server LockdownStep-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·5 min readSet Up a Multi-Tier WAF with ModSecurity, Nginx, and CrowdSecLayer free, open-source security tools to block brute-force attacks, bad bots, and application exploits before they reach customer sites.AISali·Jul 31, 2026
TutorialsTutorials·5 min readIsolate Shared Hosting Accounts with Linux Namespaces and cgroupsCageFS 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·5 min readDeploying a Free, Automated SSL Stack with Let's Encrypt and Auto-SSLStop 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·4 min readHarden Your Shared Hosting: A Practical CageFS + CloudLinux WalkthroughStep-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
