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
10,964

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

linux
8,205

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

monitoring
6,872

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

hosting
6,042

Install and configure TimescaleDB with PostgreSQL for high-performance time-series data

databases
5,521

Recently published

Check disk space usage on Linux with df and du commands

linux
9 hours ago

Find and kill processes using a specific port on Linux

linux
4 days ago

Fix PostgreSQL FATAL sorry, too many clients already

linux
1 week ago

Configure Istio multi-cluster disaster recovery and automated failover

devops
2 weeks ago

Set up automated MariaDB Galera cluster backups with compression

databases
1 month ago
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databases Advanced

Configure MongoDB sharding with zone-based data distribution for geographic workloads

Set up MongoDB sharding with geographic zones to distribute data based on location, ensuring optimal performance for global applications and regulatory compliance.

45 min 4 distros 964 views
devops Advanced

Configure Kubernetes secrets management with Vault integration for secure container orchestration

Set up HashiCorp Vault Agent Injector to automatically inject secrets into Kubernetes pods without storing sensitive data in container images or configuration files. This production-grade approach replaces hardcoded secrets with dynamic, secure credential management.

45 min 4 distros 1,340 views
monitoring Advanced

Monitor Kubernetes network policies with Prometheus and Grafana for enhanced cluster security

Set up comprehensive monitoring for Kubernetes network policies using Prometheus and Grafana. Configure CNI metrics collection, create security dashboards, and implement alerting for policy violations and traffic anomalies.

45 min 4 distros 1,061 views
monitoring Intermediate

Set up centralized logging with Winston and Elasticsearch for Node.js applications

Configure Winston logging in Node.js with Elasticsearch transport for centralized log aggregation, monitoring, and analysis using Kibana dashboards.

45 min 4 distros 956 views
hosting Advanced

Implement NGINX Plus active health checks for enterprise environments

Configure NGINX Plus active health checks to automatically detect and remove unhealthy upstream servers, ensuring high availability and optimal load balancing for enterprise applications.

45 min 4 distros 1,413 views
monitoring Intermediate

Configure Prometheus alerting with AlertManager notifications and webhook integration

Set up AlertManager to handle Prometheus alerts with email, Slack, and webhook notifications. Configure alerting rules, notification channels, and test the complete alerting pipeline.

25 min 4 distros 1,695 views
monitoring Intermediate

Set up Telegraf custom plugins for application monitoring with Prometheus and InfluxDB integration

Learn to build custom Telegraf input plugins for application metrics collection, configure dual output to Prometheus and InfluxDB backends, and create comprehensive monitoring dashboards with Grafana for production observability.

45 min 4 distros 1,195 views
devops Intermediate

Configure Kubernetes ingress controller with NGINX and SSL certificates using cert-manager

Set up NGINX Ingress Controller with automated SSL certificate management using cert-manager for secure routing of external traffic to your Kubernetes services. Configure custom domains, SSL automation, and advanced routing rules for production workloads.

25 min 4 distros 1,112 views
monitoring Intermediate

Set up Kubernetes monitoring with Prometheus Operator and custom metrics

Deploy a production-grade monitoring stack with Prometheus Operator, configure ServiceMonitor resources for automatic scraping, and create custom alerting rules with Grafana dashboards for comprehensive Kubernetes cluster observability.

45 min 4 distros 1,134 views
monitoring Intermediate

Install and configure Filebeat 8.15 for efficient log shipping to ELK stack

Set up Filebeat 8.15 to collect and ship logs from multiple sources to Elasticsearch. Configure SSL/TLS security, performance optimization, and monitoring for production-grade log aggregation.

45 min 4 distros 1,202 views
hosting Intermediate

Configure OpenResty load balancing with upstream health checks and automatic failover

Set up OpenResty with intelligent load balancing across multiple backend servers, health monitoring, and automatic failover to maintain high availability for web applications.

25 min 4 distros 1,244 views
security Advanced

Implement OpenResty rate limiting and API protection with Lua middleware

Build production-grade API protection using OpenResty's Lua middleware with advanced rate limiting algorithms, request throttling, and comprehensive security policies for high-traffic web applications.

45 min 4 distros 1,110 views

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