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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Configure Linux system time synchronization with chrony and NTP hardening

linux
877

Set up Node.js application security with Helmet and rate limiting

security
755

Install and configure Caddy web server with automatic HTTPS and reverse proxy

hosting
739

Install and configure Uvicorn ASGI server with systemd and reverse proxy for FastAPI applications

hosting
731

Install and configure PostgreSQL 17 with performance tuning and security hardening

databases
719

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Configure systemd service resource limits and security isolation

linux
1 hour ago

Configure NGINX SSL termination with Redis session storage

hosting
1 hour ago

Configure intrusion detection with OSSEC and fail2ban integration

security
1 hour ago

Set up Varnish 7 cluster with load balancing across multiple backends

performance
1 hour ago

Configure OSSEC active response for automated threat blocking

security
6 hours ago
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linux Intermediate

Configure systemd service resource limits and security isolation

Configure cgroups v2 resource limits and security isolation for systemd services to prevent resource exhaustion and improve system security. This tutorial covers memory, CPU, and I/O limits with monitoring and troubleshooting.

35 min 4 distros 5 views
hosting Intermediate

Configure NGINX SSL termination with Redis session storage

Set up NGINX as an SSL termination proxy with Redis backend for session storage, enabling scalable load balancing and persistent user sessions across multiple application servers.

45 min 4 distros 4 views
performance Advanced

Set up Varnish 7 cluster with load balancing across multiple backends

Configure a high-performance Varnish Cache 7 cluster with intelligent load balancing across multiple web servers, SSL termination, health monitoring, and shared cache synchronization for enterprise web acceleration.

45 min 4 distros 4 views
security Intermediate

Configure SSH key authentication and security hardening

Replace password authentication with SSH keys and implement comprehensive security hardening including fail2ban, audit logging, and access controls to protect your Linux servers from unauthorized access and brute force attacks.

25 min 4 distros 4 views
security Intermediate

Configure PostgreSQL 17 SSL encryption and advanced security hardening

Set up SSL/TLS encryption, client certificate authentication, and comprehensive security policies for PostgreSQL 17. Includes audit logging, access controls, and firewall configuration for production environments.

45 min 4 distros 4 views
security Intermediate

Implement network security policies with iptables and firewalld for enterprise infrastructure protection

Configure enterprise-grade network security with iptables and firewalld, implementing zone-based policies, advanced rules, and comprehensive logging for production infrastructure protection.

45 min 4 distros 8 views
devops Intermediate

Deploy FastAPI applications with Docker Compose and production optimization

Learn to containerize FastAPI applications with Docker Compose, integrate PostgreSQL and Redis services, configure Nginx reverse proxy with SSL, and implement production monitoring for scalable microservices deployment.

45 min 4 distros 22 views
devops Intermediate

Configure container resource limits with Docker and systemd for production workloads

Learn to set memory, CPU, and I/O limits for Docker containers using both Docker runtime constraints and systemd service limits. Master cgroups v2 integration for bulletproof resource management in production environments.

25 min 4 distros 5 views
databases Advanced

Configure Redis 7 cluster sharding for horizontal scaling with automated failover and monitoring

Set up Redis 7 cluster with automatic sharding across multiple nodes for horizontal scaling. Configure hash slots, master-slave replication, and automated failover with comprehensive monitoring.

45 min 4 distros 12 views
performance Intermediate

Configure H2O HTTP/2 web server caching and compression optimization for high performance

Optimize H2O web server performance with advanced caching strategies, HTTP/2 compression, and production-grade tuning for high-traffic applications.

45 min 4 distros 5 views
networking Advanced

Configure H2O HTTP/2 server load balancing with health checks and SSL termination

Set up H2O as a high-performance load balancer with HTTP/2 support, automated health monitoring, and SSL termination for production web applications.

45 min 4 distros 11 views
security Intermediate

Configure ClamAV integration with web servers and email systems for automated threat detection

Integrate ClamAV antivirus with NGINX, Apache, Postfix and Dovecot for automated file scanning and email protection. Set up real-time threat detection with monitoring and alerting.

45 min 4 distros 5 views

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