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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Install and configure CockroachDB cluster with high availability and distributed SQL

databases
450

Install and configure ArgoCD for GitOps continuous deployment with RBAC and SSL

devops
425

Install and configure PostgreSQL 17 with performance tuning and security hardening

databases
413

Install and configure WireGuard VPN server with client management

networking
408

Install and configure Loki for centralized log aggregation with Grafana integration

monitoring
406

Recently published

Monitor Kubernetes clusters with Prometheus and Grafana for container orchestration insights

monitoring
3 hours ago

Configure Linux user and group management with sudo access control

security
3 hours ago

Deploy multiple Ollama instances with HAProxy load balancing for high availability AI model serving

devops
3 hours ago

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

hosting
3 hours ago

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

monitoring
12 hours ago
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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 64 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 100 views
networking Intermediate

Configure WireGuard VPN with DNS filtering and ad blocking using Pi-hole and Unbound

Set up a secure WireGuard VPN server with integrated Pi-hole DNS filtering and Unbound recursive resolver for ad blocking and privacy protection. This configuration provides secure remote access while filtering malicious domains and advertisements.

45 min 4 distros 131 views
security Advanced

Set up intrusion detection with OSSEC HIDS and nftables integration for automated threat response

Configure OSSEC Host-based Intrusion Detection System with nftables firewall integration for real-time threat detection and automated response. Monitor system activity, detect intrusions, and automatically block malicious IPs using active response mechanisms.

45 min 4 distros 121 views
networking Intermediate

Implement SNMP device auto-discovery with network scanning and automated inventory management

Set up automated SNMP device discovery using nmap network scanning and Python scripts for dynamic inventory management. Integrate with Zabbix and Grafana for comprehensive network monitoring and visualization.

45 min 4 distros 123 views
security Intermediate

Implement Apache web application firewall with ModSecurity 3 and OWASP Core Rule Set

Deploy ModSecurity 3 as an Apache module with OWASP Core Rule Set to protect web applications from common attacks. Configure real-time logging, custom rules, and automated threat detection for production environments.

45 min 4 distros 178 views
security Intermediate

Implement HAProxy rate limiting and DDoS protection with advanced security rules

Configure HAProxy with comprehensive rate limiting, connection throttling, and DDoS protection using stick tables, ACLs, and advanced security rules to protect your applications from malicious traffic and ensure service availability.

45 min 4 distros 132 views
security Intermediate

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

Secure your Node.js Express applications against common vulnerabilities with Helmet.js middleware and implement rate limiting to prevent abuse and DDoS attacks.

25 min 4 distros 210 views
performance Intermediate

Implement Varnish cache warming with automated content preloading for high-performance websites

Set up automated Varnish cache warming with priority URL preloading, systemd timers for scheduled content refreshing, and comprehensive monitoring to optimize cache hit rates and reduce backend server load for high-traffic websites.

35 min 4 distros 226 views
performance Intermediate

Configure Lighttpd 1.4 with Redis caching for high-performance websites

Set up Lighttpd web server with Redis caching to dramatically improve website performance through intelligent content caching, reducing server load and response times for high-traffic applications.

25 min 4 distros 239 views
performance Beginner

Optimize PHP-FPM performance with memory tuning and connection pooling for high-traffic websites

Configure PHP-FPM with optimized memory pools, process management, and connection limits to handle high-traffic websites efficiently. Learn production-grade tuning strategies for maximum performance.

25 min 6 distros 219 views
hosting Beginner

Install and configure PHP 8.4 with Apache and security hardening

Set up PHP 8.4 with Apache web server using PHP-FPM for optimal performance and security. Learn to configure essential PHP modules, implement security hardening measures, and optimize your LAMP stack for production environments.

25 min 6 distros 209 views

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