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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Configure Linux system time synchronization with chrony and NTP hardening

linux
879

Set up Node.js application security with Helmet and rate limiting

security
756

Install and configure Caddy web server with automatic HTTPS and reverse proxy

hosting
743

Install and configure Uvicorn ASGI server with systemd and reverse proxy for FastAPI applications

hosting
737

Install and configure PostgreSQL 17 with performance tuning and security hardening

databases
723

Recently published

Configure systemd service resource limits and security isolation

linux
5 hours ago

Configure NGINX SSL termination with Redis session storage

hosting
5 hours ago

Configure intrusion detection with OSSEC and fail2ban integration

security
5 hours ago

Set up Varnish 7 cluster with load balancing across multiple backends

performance
5 hours ago

Configure OSSEC active response for automated threat blocking

security
10 hours ago
"validation" × Clear all
hosting Intermediate

Install and configure OpenLiteSpeed web server with SSL and PHP for high-performance hosting

Set up OpenLiteSpeed web server with SSL certificates, PHP LSAPI, and built-in caching for superior performance compared to Apache and Nginx. Includes security hardening and monitoring configuration.

45 min 6 distros 520 views
hosting Intermediate

Configure Apache web server with virtual hosts and SSL certificates

Set up Apache HTTP server with multiple virtual hosts, secure SSL certificates from Let's Encrypt, and implement security hardening for production workloads.

45 min 6 distros 459 views
performance Advanced

Set up Apache Airflow DAG performance testing with Locust load testing framework

Learn to configure Locust for comprehensive Apache Airflow DAG performance testing, including automated load testing scenarios, metrics collection, and CI/CD integration for production-grade workflow optimization.

45 min 4 distros 347 views
devops Intermediate

Integrate SonarQube with Kubernetes and Helm charts for automated code quality scanning

Deploy SonarQube on Kubernetes using Helm charts with PostgreSQL database, configure automated code scanning workflows, and implement persistent storage for comprehensive code quality analysis in your CI/CD pipeline.

45 min 4 distros 428 views
devops Intermediate

Configure GitLab container registry with SSL certificates and security hardening

Set up GitLab's integrated Docker registry with SSL/TLS encryption, security headers, and production-ready hardening for secure container image storage and distribution.

45 min 4 distros 280 views
devops Advanced

Configure Ansible AWX 24.6 for enterprise automation with RBAC and inventory management

Deploy Ansible AWX 24.6 with Docker Compose, PostgreSQL backend, and enterprise-grade RBAC. Set up dynamic inventory management with multiple sources and implement automated job workflows with notifications for production environments.

45 min 4 distros 377 views
networking Advanced

Configure Envoy proxy rate limiting and circuit breakers for microservices resilience

Learn to implement production-grade Envoy proxy with global and local rate limiting, circuit breakers, and health checks to build resilient microservices architecture that can handle traffic spikes and service failures gracefully.

45 min 4 distros 454 views
devops Intermediate

Setup SonarQube scanner for multiple programming languages with automated code quality analysis

Configure SonarQube Scanner CLI to analyze Java, Python, JavaScript, and C# projects with automated quality gates and CI/CD integration. Streamline code quality analysis across your entire development pipeline with Docker and Jenkins automation.

45 min 4 distros 398 views
devops Advanced

Implement comprehensive Apache Airflow DAG testing and validation strategies with pytest and best practices

Learn to implement production-grade testing for Apache Airflow DAGs using pytest, including unit tests for DAG structure validation, integration testing with test databases, and automated validation pipelines with CI/CD integration.

45 min 4 distros 578 views
devops Advanced

Implement Kubernetes admission controllers with OPA Gatekeeper for policy enforcement

Set up OPA Gatekeeper admission controllers to enforce security policies, resource governance, and compliance rules across your Kubernetes cluster with custom constraint templates.

45 min 4 distros 592 views
monitoring Intermediate

Configure Apache Airflow monitoring with Prometheus alerts and Grafana dashboards

Set up comprehensive monitoring for Apache Airflow with Prometheus metrics collection, StatsD integration, and custom Grafana dashboards. Configure automated alerting for DAG failures, task timeouts, and system health issues.

45 min 4 distros 564 views
linux Intermediate

Optimize Linux system performance with kernel parameters and system tuning

Learn production-grade Linux performance optimization through systematic kernel parameter tuning, memory management, I/O optimization, and network stack configuration to maximize system throughput and responsiveness.

45 min 6 distros 465 views

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