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 Ollama for local AI models on Linux servers
devopsInstall and configure Uvicorn ASGI server with systemd and reverse proxy for FastAPI applications
hostingInstall and configure Uptime Kuma for website monitoring with SSL and email alerts
monitoringRecently published
Setup Node.js error tracking with Sentry for production monitoring and debugging
monitoringImplement Node.js application monitoring with Prometheus metrics and Grafana dashboards
monitoringImplement OSPF multi-area design with FRRouting and advanced routing policies
networkingConfigure Istio security policies with external authorization services integration
securityImplement Docker network security with custom bridge networks and container isolation
securityConfigure Redis 7 Lua scripting and modules for advanced data processing
Enable and optimize Redis 7 Lua scripting capabilities, install custom modules, and implement advanced data processing scripts with performance monitoring for high-throughput applications.
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.
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.
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.
Set up NGINX web application firewall with ModSecurity 3 and OWASP Core Rule Set
Configure a production-grade web application firewall using NGINX with ModSecurity 3 and OWASP Core Rule Set. Includes logging, monitoring, and fail2ban integration for comprehensive threat protection.
Configure NGINX reverse proxy with advanced caching and load balancing
Set up NGINX as a high-performance reverse proxy with Redis-backed caching, multiple load balancing algorithms, SSL termination, and comprehensive monitoring for production environments.
Set up MinIO gateway for multi-cloud storage federation with AWS S3 and Azure integration
Learn to deploy MinIO as a unified storage gateway that seamlessly federates multiple cloud storage backends including AWS S3 and Azure Blob Storage. This advanced configuration provides intelligent failover, cost optimization, and vendor-neutral object storage management.
Configure Thanos Ruler for distributed alerting across multiple Prometheus clusters
Set up Thanos Ruler to create a unified alerting layer across distributed Prometheus instances. This tutorial covers installation, global rule configuration, and cross-cluster alert federation for enterprise monitoring.
Implement network security with iptables connection tracking and stateful packet filtering
Configure iptables with connection tracking modules to implement stateful packet filtering, advanced NAT rules, and comprehensive network security monitoring. Build robust firewall rules that track connection states and provide granular control over network traffic.
Set up OpenVPN high availability cluster with automatic failover and load balancing
Build a production-ready OpenVPN high availability cluster using keepalived for automatic failover and HAProxy for load balancing across multiple OpenVPN servers.
Backup and restore Redis Sentinel cluster data with automated strategies and monitoring
Learn to implement production-grade backup and restore procedures for Redis Sentinel clusters with automated scheduling, point-in-time recovery, and comprehensive monitoring to ensure data durability and business continuity.
Set up Apache Airflow high availability with CeleryExecutor and Redis clustering
Deploy Apache Airflow in high availability mode using CeleryExecutor with Redis clustering for task distribution, PostgreSQL connection pooling, and load-balanced webservers for production-grade workflow orchestration.
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