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
Implement Apache load balancing with SSL termination and health checks
hostingSetup 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 log-based monitoring and alerting with Grafana and Loki
Set up comprehensive log aggregation with Loki, centralized visualization with Grafana dashboards, and automated alerting rules for proactive incident response across your infrastructure.
Configure Apache reverse proxy and load balancing for high availability
Set up Apache as a reverse proxy with load balancing across multiple backend servers. Configure health checks, SSL termination, and failover for production high availability deployments.
Configure ELK stack for centralized logging with Elasticsearch 8, Logstash 8, and Kibana 8
Set up a production-grade ELK stack with Elasticsearch 8, Logstash 8, and Kibana 8 for centralized log management. Configure authentication, SSL encryption, and log processing pipelines across multiple data sources.
Setup automated backup verification and recovery testing with PostgreSQL, MySQL and filesystem backups
Build a comprehensive backup verification framework that automatically tests database restores, validates filesystem backups, and performs recovery testing using systemd timers and custom scripts.
Implement Linux security hardening with CIS benchmarks and automated compliance scanning
Harden your Linux systems using CIS benchmarks with automated compliance scanning and continuous monitoring. Learn to implement security controls for filesystem permissions, user authentication, network policies, and maintain ongoing compliance with industry standards.
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 centralized logging with rsyslog and logrotate for system monitoring and log management
Set up a centralized logging system using rsyslog server to collect logs from multiple clients, implement TLS encryption for secure transmission, and configure logrotate for automated log rotation and management.
Configure Apache Airflow DAG performance optimization best practices
Optimize Apache Airflow DAGs for production with parallelism tuning, resource allocation strategies, and performance monitoring. Learn executor configuration, task dependency optimization, and troubleshooting techniques for high-throughput workflows.
Implement WireGuard multi-site mesh networking with automatic routing and failover
Deploy a scalable WireGuard mesh network across multiple sites with automatic routing, failover mechanisms, and centralized management for high-availability site-to-site connectivity.
Configure ArgoCD with SonarQube quality gates for GitOps deployment validation
Set up automated quality gate validation in ArgoCD using SonarQube webhooks and pre-sync hooks to prevent deployments that fail code quality standards. This integration ensures only code that passes your quality criteria gets deployed to production.
Configure Kubernetes resource quotas and limit ranges for namespace-level resource management
Set up Kubernetes resource quotas and limit ranges to control CPU, memory, and storage consumption at the namespace level. This tutorial covers implementing resource constraints, monitoring usage, and troubleshooting quota issues for multi-tenant cluster management.
Set up Apache Airflow performance monitoring with DataDog agent integration and custom dashboards
Configure comprehensive Apache Airflow monitoring using DataDog agent to track DAG performance, task execution metrics, and resource utilization with custom dashboards and automated alerting for production workflow management.
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