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
Implement Apache load balancing with SSL termination and health checks
hostingSetup 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
securityConfigure ClickHouse materialized views for real-time analytics with performance optimization
Set up ClickHouse materialized views to transform raw data into real-time aggregations. Configure performance optimization with memory tuning and monitoring for high-throughput analytics workloads.
Configure Ansible Vault for secret management and encryption with playbook automation
Set up Ansible Vault to encrypt sensitive data like passwords, API keys, and certificates in your playbooks. Learn to create encrypted variables, manage vault passwords, and integrate secure secret handling into automated deployments.
Set up Apache Airflow DAG security policies and data governance with RBAC and audit logging
Configure comprehensive security for Apache Airflow with role-based access control, DAG-level permissions, data lineage tracking, and audit logging for compliance monitoring in production environments.
Set up Nomad multi-node cluster with TLS encryption and Consul integration
Deploy a production-ready HashiCorp Nomad cluster with server and client nodes, TLS encryption, and Consul integration for service discovery. Includes workload deployment and monitoring configuration.
Implement Istio circuit breaker and retry policies for microservices resilience and fault tolerance
Configure Istio destination rules with circuit breaker patterns, implement retry policies with exponential backoff, and set up comprehensive fault injection testing for microservices resilience in Kubernetes service mesh environments.
Configure Kubernetes secrets management with Sealed Secrets for secure Helm values
Learn to implement Sealed Secrets controller for encrypting Kubernetes secrets in Git repositories, enabling secure GitOps workflows with encrypted Helm values and automated secret management.
Configure Apache Airflow DAG version control with Git and CI/CD pipelines
Set up Git-based version control for Apache Airflow DAGs with automated CI/CD pipelines for testing and deployment. Implement DAG synchronization, validation workflows, and production-ready deployment strategies.
Configure SSL certificates and security hardening for Nexus Repository Manager
Secure your Nexus Repository Manager with SSL/TLS certificates, enforce HTTPS connections, and implement comprehensive security hardening including authentication controls, access policies, and audit logging for production environments.
Set up Grafana Enterprise high availability clustering with PostgreSQL backend and load balancing
Build a production-ready Grafana Enterprise cluster with PostgreSQL shared storage, HAProxy load balancing, and SSL encryption. Includes automated failover, session persistence, and comprehensive monitoring for enterprise observability platforms.
Configure Keycloak high availability clustering for production with load balancing and failover
Set up a production-ready Keycloak cluster with PostgreSQL backend, HAProxy load balancing, and automatic failover to ensure identity services remain available during node failures and high traffic.
Configure Keycloak custom themes and branding with SSL integration and production deployment
Set up custom Keycloak themes with your organization's branding, implement SSL certificates, and deploy to production with hot reload development workflow and performance optimization.
Configure advanced iptables firewall rules with logging, port knocking, and DDoS protection
Build a production-grade iptables firewall with connection tracking, rate limiting, and port knocking. Includes automated DDoS protection, detailed logging, and security hardening for enterprise environments.
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