How to Set Up Nginx Rate Limiting in 2025
Advanced Nginx rate limiting for 2025 — per-endpoint limits, allowlists and custom error responses.
How to Harden SSL/TLS on Linux Servers in 2025
Modern SSL/TLS hardening for 2025 — TLS 1.3 only, strong ciphers, HSTS preload and OCSP stapling.
How to Secure a Linux Server in 2024
Comprehensive Linux server security checklist for 2024 — SSH, firewall, Fail2Ban, auditing and monitoring.
How to Protect Your Server from DDoS Attacks
Multi-layer DDoS protection — Cloudflare rules, Nginx rate limiting, Fail2Ban and kernel SYN flood protection.
How to Automate Linux Security Audits with Lynis
Schedule weekly security audits with Lynis — track hardening score, get recommendations and fix issues.
How to Recover a Hacked Linux Server
Step-by-step hacked server recovery — contain the breach, scan for malware, clean and reharden.
How to Configure Ubuntu 22.04 Server Security
Harden Ubuntu 22.04 server security — unattended upgrades, AppArmor, auditd and kernel hardening.
How to Harden Nginx with Security Headers
Add HSTS, CSP, X-Frame-Options and other security headers to Nginx for an A+ security rating.
How to Set Up Two-Factor Authentication for SSH
Add TOTP two-factor authentication to SSH using Google Authenticator PAM module.
How to Get a Wildcard SSL Certificate from Let's Encrypt
Obtain a wildcard certificate covering all subdomains using Let's Encrypt DNS challenge with Certbot.
How to Harden MariaDB Server Security
Secure MariaDB — disable remote root, remove test databases, bind to localhost and enable query logging.
How to Configure SSL Certificates on cPanel WHM
Configure AutoSSL in WHM, install Let's Encrypt on cPanel and troubleshoot common SSL issues.
How to Configure Nginx Rate Limiting
Protect your server from DDoS and brute force with Nginx rate limiting — zones, burst settings and status codes.
How to Set Up ModSecurity WAF with Nginx
Install ModSecurity with the OWASP Core Rule Set on Nginx to block SQL injection, XSS and other attacks.
How to Harden Linux Server Security
Comprehensive Linux server hardening — kernel parameters, file permissions, user accounts and audit logging.
How to Configure Fail2Ban for SSH and Nginx
Install and configure Fail2Ban to automatically ban IPs making repeated failed login and web requests.
How to Set Up UFW Firewall on Ubuntu Server
Configure UFW to protect your Ubuntu server — allow only the ports you need and block everything else.
How to Install Let's Encrypt SSL on Nginx
Get a free SSL certificate from Let's Encrypt and configure auto-renewal on Nginx using Certbot.
How to Secure SSH Access on a Linux Server
Essential SSH hardening — change default port, disable root login, use key-based authentication and install Fail2Ban.