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
Configure Linux system time synchronization with chrony and NTP hardening
linuxInstall 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
hostingSet up Node.js application security with Helmet and rate limiting
securityInstall and configure PostgreSQL 17 with performance tuning and security hardening
databasesRecently published
Monitor Jetty performance with JMX and Grafana dashboards
monitoringConfigure FRRouting route maps and prefix lists for advanced routing policies
networkingConfigure Jetty clustering and session replication for high availability
hostingConfigure Cherokee web server with MySQL database optimization and performance tuning
hostingConfigure Cassandra SSL encryption and authentication with security hardening
databasesInstall and configure Istio service mesh for Kubernetes with security policies and observability
Learn to deploy Istio service mesh on Kubernetes with mTLS security, traffic management, and comprehensive observability using Kiali and Jaeger for production microservices.
Install and configure Apache Airflow with PostgreSQL backend and secure production deployment
Learn to deploy Apache Airflow in production with PostgreSQL backend, systemd services, SSL/TLS encryption, and security hardening for enterprise workflow orchestration.
Install and configure Keycloak for enterprise authentication with clustering
Set up Keycloak as an enterprise identity provider with PostgreSQL backend, SSL encryption, and high availability clustering for OAuth2, OpenID Connect, and SAML authentication across your organization.
Install and configure Nexus Repository Manager for private Docker and Maven repositories
Set up Nexus Repository Manager OSS with SSL-enabled Docker registry, Maven repositories, and automated backups for secure artifact management in enterprise environments.
Install and configure OpenTelemetry Collector for distributed tracing and observability
Set up OpenTelemetry Collector to gather distributed traces and metrics from your applications. Configure receivers, processors, and exporters for comprehensive observability with Jaeger and Prometheus integration.
Install and configure Ansible with automation best practices and security
Learn to install Ansible on Linux, configure secure SSH authentication, create production-ready playbooks with Vault encryption, and implement roles for scalable infrastructure automation.
Install and configure Fail2ban with advanced rules and email alerts
Set up Fail2ban intrusion prevention system with custom SSH, web server, and application protection rules. Configure email notifications and advanced filtering to automatically block malicious IP addresses based on log patterns.
Install and configure Vault for secrets management with high availability
Set up HashiCorp Vault with Consul backend for production-grade secrets management. Configure clustering, authentication, policies, and security hardening for enterprise environments.
Install and configure HAProxy for high availability load balancing
Set up HAProxy with SSL termination, keepalived for high availability, and comprehensive health checks to distribute traffic across multiple backend servers with automatic failover.
Install and configure NGINX with HTTP/3 and modern security headers
Set up NGINX with HTTP/3 and QUIC support for faster web performance. Configure SSL certificates, implement modern security headers like CSP and HSTS, and optimize for production workloads.
Install and configure PostgreSQL 17 with performance tuning and security hardening
Learn to install PostgreSQL 17 from official repositories, optimize performance with proper memory settings, and implement security best practices including SSL encryption and authentication hardening.
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