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
900

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

hosting
774

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

hosting
765

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

security
758

Install and configure PostgreSQL 17 with performance tuning and security hardening

databases
738

Recently published

Configure FRRouting route maps and prefix lists for advanced routing policies

networking
53 seconds ago

Configure Jetty clustering and session replication for high availability

hosting
9 hours ago

Configure Cherokee web server with MySQL database optimization and performance tuning

hosting
14 hours ago

Configure Cassandra SSL encryption and authentication with security hardening

databases
18 hours ago

Install and configure ntopng for comprehensive network monitoring with traffic analysis and real-time dashboards

networking
18 hours ago
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networking Advanced

Set up automated network topology discovery with SNMP and LLDP for infrastructure mapping

Build an automated network discovery system that uses SNMP and LLDP protocols to map your infrastructure topology, detect device relationships, and create visual network diagrams with real-time monitoring integration.

45 min 4 distros 255 views
monitoring Intermediate

Monitor Kubernetes clusters with Prometheus and Grafana for container orchestration insights

Set up comprehensive Kubernetes monitoring using the Prometheus Operator and Grafana with persistent storage, RBAC, ServiceMonitors, and custom dashboards for complete cluster observability.

45 min 4 distros 284 views
security Intermediate

Configure Linux user and group management with sudo access control

Learn to create and manage Linux users and groups with proper sudo access control, security hardening, and monitoring. This comprehensive guide covers account creation, group membership management, sudo configuration, and security best practices for production environments.

45 min 4 distros 222 views
hosting Intermediate

Configure Deno WebSocket connections for real-time applications with clustering and production deployment

Set up production-ready Deno WebSocket servers with authentication, clustering, and load balancing for real-time applications. Complete with systemd service configuration and NGINX reverse proxy setup.

45 min 4 distros 320 views
monitoring Intermediate

Configure Nagios SNMP monitoring for network devices with automated discovery and templates

Set up comprehensive SNMP monitoring in Nagios Core with automated network device discovery, custom templates for switches and routers, and real-time alerting for network infrastructure monitoring.

45 min 4 distros 244 views
security Intermediate

Set up NGINX web application firewall with ModSecurity 3 and OWASP Core Rule Set

Configure a production-grade web application firewall using NGINX with ModSecurity 3 and OWASP Core Rule Set. Includes logging, monitoring, and fail2ban integration for comprehensive threat protection.

45 min 4 distros 258 views
hosting Advanced

Configure NGINX reverse proxy with advanced caching and load balancing

Set up NGINX as a high-performance reverse proxy with Redis-backed caching, multiple load balancing algorithms, SSL termination, and comprehensive monitoring for production environments.

45 min 4 distros 248 views
monitoring Advanced

Implement OpenTelemetry distributed context propagation across microservices with automatic instrumentation

Set up comprehensive distributed tracing across microservices using OpenTelemetry with automatic context propagation, trace correlation headers, and framework-specific auto-instrumentation for Python, Java, and Node.js applications.

45 min 4 distros 377 views
security Intermediate

Implement network security with iptables connection tracking and stateful packet filtering

Configure iptables with connection tracking modules to implement stateful packet filtering, advanced NAT rules, and comprehensive network security monitoring. Build robust firewall rules that track connection states and provide granular control over network traffic.

45 min 4 distros 294 views
networking Advanced

Set up OpenVPN high availability cluster with automatic failover and load balancing

Build a production-ready OpenVPN high availability cluster using keepalived for automatic failover and HAProxy for load balancing across multiple OpenVPN servers.

90 min 4 distros 240 views
monitoring Intermediate

Implement PHP application monitoring with New Relic and logging

Set up comprehensive PHP application monitoring using New Relic APM with custom metrics and error tracking. Configure structured logging with centralized collection and automated monitoring alerts.

45 min 4 distros 261 views
devops Intermediate

Configure Ansible dynamic inventory for AWS, Azure, and GCP with automated discovery

Set up Ansible dynamic inventory plugins for AWS EC2, Azure VMs, and Google Cloud instances with automated discovery, credential management, and performance optimization across multiple cloud providers.

45 min 4 distros 268 views

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