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 Uptime Kuma for website monitoring with SSL and email alerts
monitoringInstall and configure Caddy web server with automatic HTTPS and reverse proxy
hostingInstall and configure TimescaleDB with PostgreSQL for high-performance time-series data
databasesInstall and configure Ollama for local AI models on Linux servers
devopsRecently published
Configure PostgreSQL 17 SSL encryption and certificate-based authentication
databasesSet up HAProxy SSL termination with Let's Encrypt certificates
networkingConfigure HAProxy with Consul for dynamic service discovery
networkingConfigure PostgreSQL 17 connection pooling with PgBouncer for high availability
databasesConfigure Kubernetes secrets management with External Secrets Operator and HashiCorp Vault
devopsSet up Zabbix 7 distributed monitoring with proxy servers for scalable infrastructure oversight
Configure Zabbix proxy servers to distribute monitoring loads across multiple network segments with encrypted communication, automated discovery, and centralized management for enterprise-scale infrastructure monitoring.
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.
Configure Zabbix 7 API automation with Python scripts for monitoring and alerting
Automate Zabbix 7 monitoring tasks with Python scripts using the API. Set up host discovery, template assignment, custom monitoring scripts, and alerting automation for streamlined infrastructure management.
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.
Deploy applications to Kubernetes with Helm charts and production best practices
Learn how to create production-ready Helm charts for Kubernetes deployments with proper templating, values management, security configurations, and environment-specific customizations for scalable application orchestration.
Configure NGINX reverse proxy with load balancing and SSL termination
Set up NGINX as a reverse proxy with multiple backend servers, SSL termination, and health monitoring. Perfect for distributing traffic across application instances while handling encryption at the edge.
Configure WireGuard site-to-site VPN connections with advanced routing and security
Set up secure network-to-network VPN tunnels using WireGuard with advanced routing, firewall rules, and monitoring for connecting multiple office locations or data centers.
Automate backup and restore for Ollama models with systemd timers and shell scripts
Set up automated backup and restore procedures for Ollama AI models using systemd timers, shell scripts, and compression. Includes disaster recovery strategies and monitoring integration for production environments.
Configure Kafka Schema Registry with Avro serialization for data processing
Set up Confluent Schema Registry with Apache Kafka to manage Avro schemas for data serialization. Configure producers and consumers with schema evolution and compatibility rules for production data processing workflows.
Configure OpenVPN LDAP authentication and user management with Active Directory integration
Set up OpenVPN with LDAP authentication to integrate with Active Directory for centralized user management. Configure group-based access control and combine certificate-based authentication with LDAP for enterprise security.
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