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
876

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

security
755

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

hosting
737

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

hosting
730

Install and configure PostgreSQL 17 with performance tuning and security hardening

databases
718

Recently published

Configure OSSEC active response for automated threat blocking

security
4 hours ago

Configure CockroachDB 24.3 multi-region deployment with high availability clustering

databases
4 hours ago

Set up Fail2ban with Cloudflare API integration for automatic IP blocking and enhanced security

security
4 hours ago

Configure keepalived with HAProxy backend health monitoring for high availability load balancing

networking
4 hours ago

Configure ModSecurity machine learning anomaly detection for automated threat protection

security
9 hours ago
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devops Intermediate

Implement Kubernetes resource quotas and limits for namespace isolation and workload management

Configure namespace resource quotas, container resource limits, and limit ranges to ensure fair resource allocation and prevent resource exhaustion in multi-tenant Kubernetes clusters.

25 min 4 distros 539 views
monitoring Intermediate

Monitor container performance with Prometheus and cAdvisor for comprehensive metrics collection

Set up comprehensive container monitoring with cAdvisor, Prometheus, and Grafana to collect detailed metrics on CPU, memory, network, and disk usage. This tutorial covers installation, configuration, and alerting for production-ready container performance monitoring.

35 min 4 distros 472 views
linux Intermediate

Configure Linux kernel parameters for container workloads with sysctl optimization

Configure Linux kernel parameters for optimal container performance with sysctl tuning. This guide covers memory management, network stack optimization, file descriptor limits, and security parameters for Docker and Podman workloads.

25 min 6 distros 710 views
devops Advanced

Implement Kubernetes cluster autoscaling with Helm charts and KEDA for dynamic workload scaling

Configure comprehensive Kubernetes autoscaling with cluster autoscaler for node management, KEDA for event-driven pod scaling, and vertical pod autoscaler for resource optimization. This tutorial covers production-grade deployment using Helm charts with monitoring and optimization strategies.

45 min 4 distros 349 views
monitoring Intermediate

Monitor Docker containers with Prometheus and Grafana using cAdvisor for comprehensive metrics collection

Set up comprehensive Docker container monitoring with Prometheus, Grafana, and cAdvisor to track resource usage, performance metrics, and container health in production environments.

45 min 4 distros 421 views
monitoring Intermediate

Set up Prometheus and Grafana monitoring stack with Docker compose

Deploy a complete Prometheus and Grafana monitoring stack using Docker Compose with persistent storage, custom dashboards, and alerting rules for production monitoring.

25 min 4 distros 526 views

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