Infrastructure tutorials
Production-grade guides for Linux, servers, security and performance. Copy-paste commands, multi-distro support, written by engineers who run this in production.
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Linux
System administration, shell scripting, package management
Hosting & Servers
Web servers, reverse proxies, SSL, domains
Security
Firewalls, hardening, encryption, access control
Performance
Caching, optimization, profiling, load testing
Databases
MySQL, PostgreSQL, Redis, backups, replication
Networking
DNS, load balancing, VPN, TCP/IP, routing
DevOps
CI/CD, Docker, Kubernetes, automation
Monitoring
Logging, alerting, metrics, observability
Most viewed
Install and configure Deno for web development with systemd and reverse proxy
hostingInstall and configure Caddy web server with automatic HTTPS and reverse proxy
hostingInstall and configure Ollama for local AI models on Linux servers
devopsInstall and configure Uvicorn ASGI server with systemd and reverse proxy for FastAPI applications
hostingInstall and configure Uptime Kuma for website monitoring with SSL and email alerts
monitoringRecently published
Setup Node.js error tracking with Sentry for production monitoring and debugging
monitoringImplement Node.js application monitoring with Prometheus metrics and Grafana dashboards
monitoringImplement OSPF multi-area design with FRRouting and advanced routing policies
networkingConfigure Istio security policies with external authorization services integration
securityImplement Docker network security with custom bridge networks and container isolation
securityConfigure Apache SSL hardening with perfect forward secrecy and modern security protocols
Harden Apache HTTP server with modern SSL/TLS configuration, perfect forward secrecy cipher suites, and security headers to protect against common web vulnerabilities and ensure compliance with security standards.
Configure advanced nftables logging and monitoring for network security
Set up comprehensive nftables logging with structured syslog integration, Prometheus metrics collection, and ELK stack analysis. Configure Grafana dashboards for real-time firewall monitoring and automated alerting for security events.
Configure HAProxy load balancing with multiple backend servers
Set up HAProxy to distribute traffic across multiple backend servers with health checks, SSL termination, and automatic failover for high availability load balancing.
Configure ModSecurity machine learning anomaly detection for automated threat protection
Set up ModSecurity 3 with machine learning anomaly detection to automatically identify and block unknown attack patterns. This advanced configuration adds intelligent threat protection beyond traditional signature-based rules.
Implement OpenLiteSpeed WAF and DDoS protection with ModSecurity 3 and rate limiting
Set up comprehensive web application security for OpenLiteSpeed with ModSecurity 3 web application firewall, OWASP Core Rule Set for threat protection, and advanced rate limiting to defend against DDoS attacks and malicious traffic.
Configure NGINX rate limiting and DDoS protection with advanced security rules
Set up NGINX rate limiting modules, implement connection limits, and configure geographic blocking to protect your web applications from DDoS attacks and abuse.
Configure HAProxy SSL termination with Let's Encrypt and security headers
Set up HAProxy 2.8 with SSL termination, automatic Let's Encrypt certificates, and security headers for high-performance load balancing with HTTPS offloading and automated certificate renewal.
Configure Keycloak OAuth2 integration with OpenResty for enterprise SSO
Set up enterprise single sign-on by integrating Keycloak OAuth2 authentication with OpenResty using lua-resty-openidc. Configure secure authentication flows, JWT token validation, and session management for production web applications.
Setup Nginx with ModSecurity 3 web application firewall for advanced threat protection
Configure Nginx with ModSecurity 3 and OWASP Core Rule Set to protect web applications against SQL injection, XSS, and other common attacks. This tutorial covers complete WAF setup with security rules, performance optimization, and threat testing.
Implement HAProxy WAF integration with ModSecurity 3 for advanced threat protection
Configure HAProxy with ModSecurity 3 using SPOE protocol to create a high-performance web application firewall that protects against OWASP Top 10 threats while maintaining load balancing capabilities.
Set up NGINX web application firewall with ModSecurity 3 and OWASP Core Rule Set
Configure a production-grade web application firewall using NGINX with ModSecurity 3 and OWASP Core Rule Set. Includes logging, monitoring, and fail2ban integration for comprehensive threat protection.
Configure Apache rate limiting and DDoS protection with mod_security and mod_evasive
Set up comprehensive Apache protection against DDoS attacks and malicious traffic using mod_evasive for rate limiting, mod_security with OWASP rules for web application firewall capabilities, and fail2ban integration for automated IP blocking.
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