Security
Hardening, malware cleanup, SSL, firewalls and backups.
Security
First 10 Things to Do on a New Linux VPS (Security Checklist)
A 30-minute copy-paste checklist for a fresh Debian, Ubuntu or AlmaLinux VPS, with a verification command after every step so you know it worked.
Security
What Is a WAF and Does Your Website Need One?
How a web application firewall filters attacks before they reach your site, what it stops and what it cannot, the free options, and when it is worth turning on.
Security
SSL/TLS Explained: Certificates, Authorities and HTTPS
What a TLS certificate proves, how the handshake works, DV vs OV vs EV, why Let's Encrypt is enough for almost everyone, and what the padlock does not mean.
Security
How to Detect and Remove Malware From a Website
How to tell a site is infected, find the malicious files, clean or restore it, close the hole it came through, and clear Google's warning.
Security
How to Install Fail2ban and Stop Brute-Force Attacks
Install Fail2ban, understand jails and bantime, protect SSH, Plesk, Nginx and WordPress logins, whitelist your own IP and read what it has banned.
Security
How to Harden a New Linux VPS in 10 Steps
The first hour on a fresh VPS: updates, a sudo user, SSH keys, firewall, Fail2ban, automatic patches and backups, with commands for Ubuntu and AlmaLinux.