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 Uvicorn ASGI server with systemd and reverse proxy for FastAPI applications
hostingInstall and configure Ollama for local AI models on Linux servers
devopsInstall and configure Uptime Kuma for website monitoring with SSL and email alerts
monitoringRecently published
Implement NGINX Plus active health checks for enterprise environments
hostingSetup Prometheus Blackbox Exporter for endpoint monitoring with SSL and alerting
monitoringConfigure Prometheus alerting with AlertManager notifications and webhook integration
monitoringConfigure Elasticsearch cross-cluster replication for disaster recovery
databasesConfigure InfluxDB 2.7 clustering for high availability with data replication and automated failover
databasesConfigure keepalived with HAProxy backend health monitoring for high availability load balancing
Set up keepalived with HAProxy to create a high availability load balancer cluster with automatic failover, backend health monitoring, and VRRP protocol for seamless traffic distribution across multiple servers.
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.
Configure NGINX HTTP/2 server push and connection multiplexing
Configure NGINX HTTP/2 server push and connection multiplexing to reduce page load times by up to 50% through proactive resource delivery and efficient connection reuse for high-performance web applications.
Configure NGINX SSL certificate automation with Certbot and renewal monitoring
Set up automated SSL certificate provisioning and renewal for NGINX using Let's Encrypt Certbot with systemd timers, monitoring, and failure alerting for production environments.
Configure logrotate with Elasticsearch and Kibana integration for automated log management
Set up automated log rotation with Elasticsearch index lifecycle management and Kibana dashboard integration for scalable log management. Configure retention policies and monitoring alerts for production environments.
Configure PostgreSQL 17 SSL encryption and advanced security hardening
Set up SSL/TLS encryption, client certificate authentication, and comprehensive security policies for PostgreSQL 17. Includes audit logging, access controls, and firewall configuration for production environments.
Integrate ModSecurity 3 with SOAR platforms for automated incident response and threat detection
Set up ModSecurity 3 with structured logging, webhook notifications, and API integrations to automatically feed security events into SOAR platforms for real-time threat detection and incident response workflows.
Monitor Node.js applications with Prometheus and Grafana for comprehensive performance metrics
Set up comprehensive Node.js application monitoring with Prometheus metrics collection and Grafana dashboards. Configure alerting rules for performance issues, memory usage, and error tracking in production environments.
Set up PostgreSQL 17 streaming replication with PgBouncer connection pooling and load balancing
Configure PostgreSQL 17 streaming replication with automatic failover, PgBouncer connection pooling for performance optimization, and HAProxy load balancing for high availability database architecture.
Set up ELK Stack for centralized ModSecurity log analysis and monitoring
Configure Elasticsearch 8, Logstash 8, and Kibana 8 to collect, parse, and visualize ModSecurity web application firewall logs from multiple servers for centralized security monitoring and threat detection.
Deploy FastAPI applications with Docker Compose and production optimization
Learn to containerize FastAPI applications with Docker Compose, integrate PostgreSQL and Redis services, configure Nginx reverse proxy with SSL, and implement production monitoring for scalable microservices deployment.
Setup Tailscale site-to-site VPN with multiple exit nodes for redundancy
Configure a resilient Tailscale mesh VPN with multiple exit nodes for high availability site-to-site connectivity. Set up subnet routing, automatic failover, and monitoring across distributed networks.
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