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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Install and configure Deno for web development with systemd and reverse proxy

hosting
5,729

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

hosting
2,158

Install and configure Ollama for local AI models on Linux servers

devops
2,046

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

hosting
1,915

Install and configure Uptime Kuma for website monitoring with SSL and email alerts

monitoring
1,758

Recently published

Setup Node.js error tracking with Sentry for production monitoring and debugging

monitoring
3 hours ago

Implement Node.js application monitoring with Prometheus metrics and Grafana dashboards

monitoring
12 hours ago

Implement OSPF multi-area design with FRRouting and advanced routing policies

networking
17 hours ago

Configure Istio security policies with external authorization services integration

security
22 hours ago

Implement Docker network security with custom bridge networks and container isolation

security
1 day ago
"hpa" × Clear all
monitoring Intermediate

Monitor Kubernetes cluster with Prometheus Operator for comprehensive observability

Set up complete cluster monitoring using Prometheus Operator with automated metrics collection, custom dashboards, and intelligent alerting for production Kubernetes environments.

45 min 4 distros 206 views
devops Intermediate

Configure Apache Airflow with SSL certificates and NGINX reverse proxy for secure production deployment

Set up Apache Airflow behind NGINX with SSL certificates, security headers, and reverse proxy configuration for production-grade deployments with HTTPS termination.

35 min 4 distros 257 views
devops Intermediate

Deploy applications to Kubernetes with Helm charts and production best practices

Learn how to create production-ready Helm charts for Kubernetes deployments with proper templating, values management, security configurations, and environment-specific customizations for scalable application orchestration.

45 min 4 distros 270 views
hosting Intermediate

Configure NGINX reverse proxy with load balancing and SSL termination

Set up NGINX as a reverse proxy with multiple backend servers, SSL termination, and health monitoring. Perfect for distributing traffic across application instances while handling encryption at the edge.

45 min 4 distros 290 views
networking Intermediate

Configure HAProxy multi-site SSL termination with SNI for secure load balancing

Set up HAProxy to handle SSL certificates for multiple domains using Server Name Indication (SNI), enabling secure HTTPS traffic termination and load balancing across different backend services.

45 min 4 distros 321 views
linux Advanced

Fix apt update E: Repository no longer has a Release file

Resolve apt update errors when repositories lose Release files due to expired GPG keys, discontinued repos, or corrupted package manager state. Includes diagnostics, recovery methods, and prevention strategies.

25 min 7 distros 500 views
security Intermediate

Configure NGINX rate limiting and advanced security rules for DDoS protection

Configure NGINX with comprehensive rate limiting, connection throttling, and advanced security headers to protect your web applications from DDoS attacks and malicious traffic. Learn to implement zone-based rate limiting, geographic blocking, and real-time monitoring for production environments.

25 min 4 distros 396 views
devops Intermediate

Implement Deno WebSocket real-time applications with clustering and production deployment

Build production-ready real-time WebSocket applications with Deno, implementing clustering for high availability, SSL termination, and comprehensive monitoring for scalable messaging systems.

45 min 4 distros 364 views
devops Intermediate

Configure Kubernetes horizontal pod autoscaler for dynamic scaling based on resource metrics

Set up HPA with CPU and memory targets for automatic pod scaling. Configure metrics server and Prometheus adapter for custom metrics monitoring. Enable dynamic workload scaling based on resource utilization.

45 min 4 distros 403 views
devops Intermediate

Deploy multiple Ollama instances with HAProxy load balancing for high availability AI model serving

Set up multiple Ollama instances behind HAProxy load balancer for high-availability AI model serving with health checks, SSL termination, and automatic failover to eliminate single points of failure.

45 min 4 distros 706 views
hosting Intermediate

Configure Deno WebSocket connections for real-time applications with clustering and production deployment

Set up production-ready Deno WebSocket servers with authentication, clustering, and load balancing for real-time applications. Complete with systemd service configuration and NGINX reverse proxy setup.

45 min 4 distros 524 views
security Intermediate

Implement Deno JWT authentication with OAuth2 integration for secure API development

Set up production-grade JWT authentication middleware in Deno with OAuth2 provider integration and role-based access control. Learn to secure API endpoints with proper token validation, user management, and enterprise-ready authentication flows.

45 min 4 distros 548 views

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