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 Uvicorn ASGI server with systemd and reverse proxy for FastAPI applications
hostingInstall and configure Ollama for local AI models on Linux servers
devopsInstall and configure Uptime Kuma for website monitoring with SSL and email alerts
monitoringRecently published
Configure custom SNMP MIBs for vendor-specific monitoring with SNMP v2c and v3
monitoringImplement NGINX Plus active health checks for enterprise environments
hostingSetup Prometheus Blackbox Exporter for endpoint monitoring with SSL and alerting
monitoringConfigure Prometheus alerting with AlertManager notifications and webhook integration
monitoringConfigure Elasticsearch cross-cluster replication for disaster recovery
databasesConfigure Nginx Redis caching with SSL authentication and security hardening
Set up high-performance Nginx caching with Redis backend using SSL/TLS encryption and authentication. This tutorial covers Redis 7 SSL configuration, Nginx cache module setup, and comprehensive security hardening for production environments.
Configure network monitoring with SNMP and Grafana dashboards for infrastructure visibility
Set up comprehensive network monitoring using SNMP with Prometheus and Grafana to monitor network devices, collect performance metrics, and create visual dashboards for infrastructure visibility.
Monitor HAProxy and Consul with Prometheus and Grafana dashboards
Configure comprehensive monitoring for HAProxy load balancer and Consul service discovery using Prometheus metrics collection and Grafana visualization dashboards. This tutorial covers setting up exporters, configuring scraping targets, and creating production-ready monitoring dashboards.
Implement Nginx Redis cluster caching for high availability
Set up a Redis cluster with Nginx caching for high availability and improved performance. This configuration provides distributed caching with automatic failover and enhanced scalability for production web applications.
Configure nftables NAT and port forwarding for home lab environments
Learn how to configure nftables for NAT and port forwarding in home lab environments. This tutorial covers basic NAT masquerading, port forwarding rules, and advanced networking scenarios for virtual machines and containers.
Configure NGINX load balancing with health checks and automatic failover
Set up NGINX as a load balancer with upstream servers, active health checks, and automatic failover capabilities. This tutorial covers round-robin, least-connections, and IP-hash load balancing methods with real-time backend monitoring.
Implement Varnish cache warming with automated content preloading for high-performance websites
Set up automated Varnish cache warming with priority URL preloading, systemd timers for scheduled content refreshing, and comprehensive monitoring to optimize cache hit rates and reduce backend server load for high-traffic websites.
Integrate SNMP monitoring with InfluxDB and Telegraf for time-series analysis
Learn to set up a comprehensive SNMP monitoring solution using InfluxDB 2.7 for time-series storage and Telegraf for data collection. Configure monitoring for network devices, system metrics, and create visualization dashboards with Grafana.
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.
Implement Airflow DAG monitoring with DataDog integration for production workflows
Set up comprehensive monitoring for Apache Airflow DAGs using DataDog integration. This tutorial covers DataDog agent installation, metrics collection configuration, custom dashboard creation, and alerting rules for production workflow observability.
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.
Configure Istio traffic management with virtual services and destination rules
Configure advanced Istio traffic management using virtual services for intelligent request routing and destination rules for load balancing and service subsets in production Kubernetes environments.
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