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
851

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

security
731

Install and configure PostgreSQL 17 with performance tuning and security hardening

databases
699

Configure network interface monitoring with ICMP ping and connectivity testing

networking
699

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

hosting
697

Recently published

Setup Tailscale site-to-site VPN with multiple exit nodes for redundancy

networking
54 minutes ago

Configure FastAPI database connection pooling with PostgreSQL 17 for high-performance applications

databases
56 minutes ago

Configure Redis 7 cluster sharding for horizontal scaling with automated failover and monitoring

databases
59 minutes ago

Configure H2O HTTP/2 web server caching and compression optimization for high performance

performance
1 hour ago

Integrate H2O with Let's Encrypt for automatic SSL certificates

hosting
5 hours ago
"performance-tuning" × Clear all
security Intermediate

Implement OpenLiteSpeed WAF and DDoS protection with ModSecurity 3 and rate limiting

Set up comprehensive web application security for OpenLiteSpeed with ModSecurity 3 web application firewall, OWASP Core Rule Set for threat protection, and advanced rate limiting to defend against DDoS attacks and malicious traffic.

45 min 4 distros 11 views
monitoring Intermediate

Monitor MySQL performance with Prometheus and Grafana dashboards

Set up comprehensive MySQL monitoring with Prometheus MySQL Exporter and Grafana dashboards. Track query performance, connections, replication lag, and resource usage with automated alerts for production database health.

45 min 4 distros 69 views
hosting Beginner

Fix high load average with low CPU usage on web servers

Diagnose and resolve high load average issues when CPU usage remains low on Linux web servers. Learn to identify I/O bottlenecks, blocked processes, and system resource contention affecting performance.

25 min 6 distros 199 views
linux Beginner

Configure Linux kernel parameters with sysctl for system optimization

Learn to view, modify, and persist Linux kernel parameters using sysctl for system performance tuning. Configure network, memory, and security settings safely with temporary and permanent changes.

25 min 6 distros 130 views
linux Beginner

Configure Linux system services with systemctl and service management

Learn to manage Linux system services with systemctl commands, enable services on boot, create custom service files, and troubleshoot service failures with journalctl for reliable system administration.

25 min 6 distros 121 views
monitoring Intermediate

Monitor PostgreSQL performance with Prometheus and Grafana dashboards

Set up comprehensive PostgreSQL monitoring using Prometheus PostgreSQL exporter and Grafana dashboards. Configure performance metrics collection, visualization, and alerting for database optimization and troubleshooting.

25 min 4 distros 85 views
monitoring Intermediate

Integrate MinIO with Prometheus monitoring for performance metrics and observability

Set up comprehensive monitoring for your MinIO object storage cluster with Prometheus metrics collection, Grafana visualization dashboards, and automated alerting rules for production environments.

35 min 4 distros 135 views
devops Intermediate

Configure Ansible dynamic inventory for AWS, Azure, and GCP with automated discovery

Set up Ansible dynamic inventory plugins for AWS EC2, Azure VMs, and Google Cloud instances with automated discovery, credential management, and performance optimization across multiple cloud providers.

45 min 4 distros 263 views
security Intermediate

Implement FastAPI authentication with JWT and OAuth2 for secure API development

Build secure FastAPI applications with JWT token authentication and OAuth2 password bearer flows. Learn to implement role-based access control and protect API endpoints with production-ready security patterns.

45 min 4 distros 504 views
databases Beginner

Install and configure DuckDB for analytical workloads with Python integration

Set up DuckDB, the high-performance analytical database, with CLI tools and Python integration for fast OLAP queries and data analytics workloads.

25 min 6 distros 455 views
performance Beginner

Optimize Linux system performance with htop process monitoring and resource analysis

Learn to use htop for advanced Linux system monitoring, process management, and performance optimization. Master resource analysis, identify bottlenecks, and automate monitoring tasks for production environments.

25 min 6 distros 467 views
databases Intermediate

Install and configure CockroachDB cluster with high availability and distributed SQL

Set up a production-ready CockroachDB cluster with SSL certificates, load balancing, and automated backups for distributed SQL workloads. This tutorial covers multi-node deployment, security hardening, and performance optimization for enterprise environments.

45 min 6 distros 682 views

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