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 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.
Set up Kubernetes custom metrics autoscaling with Prometheus adapter for application-specific scaling
Configure Prometheus adapter to expose custom application metrics to Kubernetes Horizontal Pod Autoscaler for intelligent scaling based on business metrics like queue depth, response time, and user load instead of basic CPU/memory usage.
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.
Configure Kubernetes network policies with Calico CNI for container security and microsegmentation
Set up Calico CNI in Kubernetes to implement network policies for pod-to-pod traffic control, create ingress and egress rules for microsegmentation, and test policy enforcement to secure container communication at the network layer.
Implement Elasticsearch 8 snapshot lifecycle management with S3 storage for automated backups
Set up automated Elasticsearch 8 backups using snapshot lifecycle management policies with S3 repository storage. Configure retention policies, scheduling, and monitoring for production backup strategies.
Monitor nginx performance with Prometheus and Grafana using nginx-prometheus-exporter
Set up comprehensive nginx monitoring with Prometheus and Grafana dashboards. Configure nginx stub_status, deploy nginx-prometheus-exporter, and create production-ready alerts for web server performance metrics.
Setup Tekton Pipelines 0.62 for Kubernetes CI/CD with security scanning integration
Configure Tekton Pipelines for cloud-native CI/CD with automated security scanning, Git webhooks, and production-ready RBAC policies. Build secure container pipelines with integrated vulnerability detection and compliance checks.
Configure Loki and Promtail for centralized Docker log aggregation and analysis
Set up Grafana Loki and Promtail to collect, aggregate, and analyze logs from Docker containers. Configure retention policies, integrate with Grafana for visualization, and enable real-time log monitoring across your infrastructure.
Integrate SonarQube with Jenkins pipeline for automated code quality checks
Set up continuous code quality analysis by integrating SonarQube with Jenkins CI/CD pipelines. This tutorial covers SonarQube Scanner installation, webhook configuration, quality gates, and automated reporting for enforcing code standards across your development workflow.
Implement Grafana advanced alerting with webhooks and notification channels
Set up comprehensive Grafana alerting with webhook endpoints, Slack and Teams notifications, and advanced alert conditions. Configure data sources, create alert rules, and implement custom notification channels for production monitoring.
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