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 Caddy web server with automatic HTTPS and reverse proxy
hostingInstall and configure Ollama for local AI models on Linux servers
devopsInstall and configure Uvicorn ASGI server with systemd and reverse proxy for FastAPI applications
hostingInstall and configure Uptime Kuma for website monitoring with SSL and email alerts
monitoringRecently published
Configure Consul Connect service mesh monitoring with distributed tracing
monitoringConfigure Kubernetes RBAC with service accounts and cluster roles for secure access control
devopsImplement Deno microservices architecture with service discovery and load balancing
devopsImplement Kubernetes security scanning with Falco and OPA Gatekeeper for runtime protection
securityConfigure OpenTelemetry custom metrics for application monitoring with Prometheus and Grafana
monitoringInstall and configure Squid 6 proxy server with bandwidth controls and content filtering
Set up Squid 6 proxy server with advanced traffic shaping, content filtering, and user authentication. Configure bandwidth limits, access control lists, and comprehensive logging for enterprise proxy deployments.
Setup Nginx with ModSecurity 3 web application firewall for advanced threat protection
Configure Nginx with ModSecurity 3 and OWASP Core Rule Set to protect web applications against SQL injection, XSS, and other common attacks. This tutorial covers complete WAF setup with security rules, performance optimization, and threat testing.
Set up network monitoring with Nagios Core 4.5 and SNMP for infrastructure alerting
Configure Nagios Core 4.5 with SNMP monitoring to track network devices, servers, and services with automated alerting. Set up custom monitoring templates, notification systems, and dashboards for comprehensive infrastructure visibility.
Monitor Cherokee web server performance with custom Grafana dashboards and Prometheus alerts
Set up comprehensive monitoring for Cherokee web server with Prometheus metrics collection, custom Grafana dashboards for performance visualization, and automated alerting for critical performance thresholds.
Configure SELinux policies for web applications and databases with custom rules and security hardening
Learn how to implement mandatory access controls with SELinux for web servers and databases. Configure custom security contexts, create application-specific policies, and harden your infrastructure with advanced SELinux rules.
Configure Netdata alerts with Slack and Microsoft Teams for real-time monitoring notifications
Set up comprehensive Netdata alerting with Slack and Microsoft Teams integration. Configure custom alert thresholds, webhook notifications, and automated monitoring responses for real-time system health alerts.
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.
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.
Configure Varnish cache invalidation with automated purging strategies for high-performance web acceleration
Learn to configure advanced Varnish VCL for cache invalidation, implement PURGE and BAN strategies, and set up automated cache tagging for optimal performance. Master selective invalidation techniques and monitoring for production-grade web acceleration.
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.
Configure Ansible dynamic inventory for AWS, Azure, and GCP with automated discovery
Set up Ansible dynamic inventory plugins for AWS EC2, Azure, and Google Cloud Platform to automatically discover and manage cloud resources. This tutorial covers authentication, filtering, and unified inventory management across multiple cloud providers.
Implement NGINX Lua scripting for advanced caching logic with OpenResty
Configure OpenResty with Lua scripting for advanced caching strategies including dynamic cache keys, intelligent TTL management, and conditional cache invalidation based on business logic.
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