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 CockroachDB cluster with high availability and distributed SQL
databasesInstall and configure ArgoCD for GitOps continuous deployment with RBAC and SSL
devopsInstall and configure PostgreSQL 17 with performance tuning and security hardening
databasesInstall and configure WireGuard VPN server with client management
networkingInstall and configure Loki for centralized log aggregation with Grafana integration
monitoringRecently published
Set up Open vSwitch 3.3 for advanced virtual machine networking with VLAN and bridge configuration
networkingSet up automated network topology discovery with SNMP and LLDP for infrastructure mapping
networkingConfigure Kubernetes horizontal pod autoscaler for dynamic scaling based on resource metrics
devopsDeploy Spring Boot applications with Jetty and Docker containers
devopsMonitor Kubernetes clusters with Prometheus and Grafana for container orchestration insights
monitoringSet up Thanos Receiver for remote write scalability with Prometheus integration
Configure Thanos Receiver to handle high-volume remote write traffic from multiple Prometheus instances. This tutorial covers installation, multi-tenancy setup, and performance optimization for large-scale metrics ingestion.
Configure Gunicorn performance monitoring with Prometheus metrics and Grafana dashboards
Set up comprehensive performance monitoring for Gunicorn WSGI servers using Prometheus metrics collection and Grafana visualization. Monitor request rates, response times, worker processes, memory usage, and implement automated alerting for production Python applications.
Implement HAProxy rate limiting and DDoS protection with advanced security rules
Configure HAProxy with comprehensive rate limiting, connection throttling, and DDoS protection using stick tables, ACLs, and advanced security rules to protect your applications from malicious traffic and ensure service availability.
Monitor Consul with Prometheus and Grafana for service discovery observability
Set up comprehensive monitoring for HashiCorp Consul using Prometheus metrics collection and Grafana dashboards. Configure telemetry export, alerting rules, and visualization for service discovery health and performance.
Configure Kubernetes network policies with Calico CNI for microsegmentation and security enforcement
Learn to implement advanced network security in Kubernetes using Calico CNI. Configure namespace-based microsegmentation, application-level policies, and comprehensive monitoring for enterprise-grade cluster protection.
Implement Kubernetes Pod Security Standards and admission controllers for policy enforcement
Configure Pod Security Standards with baseline and restricted profiles, deploy OPA Gatekeeper admission controller with custom policies, and implement ValidatingAdmissionWebhooks for comprehensive security enforcement in production Kubernetes clusters.
Configure OpenTelemetry sampling strategies for high-traffic applications
Learn how to implement probabilistic, deterministic, and adaptive sampling strategies in OpenTelemetry to optimize distributed tracing performance and reduce storage costs in high-traffic production environments.
Configure advanced iptables QoS with DSCP marking and traffic classification
Set up Quality of Service (QoS) on Linux servers using iptables DSCP marking, HTB queuing, and traffic classification. This tutorial shows you how to prioritize network traffic, implement bandwidth limits, and ensure critical applications get the network resources they need for optimal performance.
Implement NGINX Lua scripting for advanced caching logic with OpenResty
Configure OpenResty with Lua scripting for advanced caching strategies including dynamic cache keys, intelligent TTL management, and conditional cache invalidation based on business logic.
Configure Apache HTTP/2 with performance optimization and modern security headers
Enable HTTP/2 protocol in Apache with SSL/TLS encryption, implement advanced performance optimization settings including compression and caching, and configure modern security headers for production deployments.
Implement Consul ACL security and encryption for production deployments
Configure Consul's Access Control List (ACL) system with bootstrap tokens, implement TLS encryption for client-server communication, and enable gossip encryption to secure your Consul cluster for production environments with comprehensive authentication and authorization.
Set up Redis monitoring with Prometheus and Grafana dashboards
Configure comprehensive Redis monitoring using Prometheus Redis Exporter and Grafana dashboards. Monitor Redis performance metrics, memory usage, connections, and replication status with automated alerts for production environments.
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