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 ArgoCD for GitOps continuous deployment with RBAC and SSL
devopsInstall and configure CockroachDB cluster with high availability and distributed SQL
databasesInstall and configure PostgreSQL 17 with performance tuning and security hardening
databasesInstall and configure Loki for centralized log aggregation with Grafana integration
monitoringInstall and configure WireGuard VPN server with client management
networkingRecently published
Configure Nagios SNMP monitoring for network devices with automated discovery and templates
monitoringIntegrate Elasticsearch 8 with Prometheus monitoring and Grafana dashboards
monitoringSet up NGINX web application firewall with ModSecurity 3 and OWASP Core Rule Set
securityConfigure NGINX reverse proxy with advanced caching and load balancing
hostingConfigure Netdata alerts with Slack and Microsoft Teams for real-time monitoring notifications
monitoringConfigure Apache HTTP/2 with performance optimization and modern security headers
Enable HTTP/2 protocol in Apache with SSL/TLS encryption, implement advanced performance optimization settings including compression and caching, and configure modern security headers for production deployments.
Implement Elasticsearch 8 index lifecycle management and retention policies
Configure automated index lifecycle management (ILM) policies in Elasticsearch 8 to optimize storage, performance, and data retention. Learn to set up hot-warm-cold architectures with automatic rollover and deletion based on age and size criteria.
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.
Setup OpenResty monitoring with Prometheus and Grafana dashboards for performance analytics
Configure comprehensive monitoring for OpenResty web server using nginx-lua-prometheus module to collect metrics, Prometheus for storage, and Grafana for visualization with custom dashboards and alerting rules.
Implement OpenResty JWT authentication with OAuth2 integration for secure web applications
Set up secure JWT-based authentication in OpenResty with OAuth2 provider integration using lua-resty-jwt module. Configure token validation, authentication middleware, and security policies for production web applications.
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.
Install and configure Nagios Core 4.5 for network and server monitoring with web interface
Set up Nagios Core 4.5 monitoring system with Apache web interface to monitor servers, network devices, and services. Configure hosts, services, and email notifications for comprehensive infrastructure monitoring.
Configure OSSEC HIDS for intrusion detection with email alerts and real-time monitoring
Set up OSSEC Host-based Intrusion Detection System with server-agent architecture, custom detection rules, email notifications, and real-time monitoring for comprehensive security monitoring across multiple systems.
Configure ModSecurity 3 web application firewall with OWASP Core Rule Set for advanced threat protection
Set up ModSecurity 3 with OWASP Core Rule Set 4.0 to protect web applications from SQL injection, XSS, and other attacks. Configure integration with Nginx and Apache, implement custom rules, and optimize performance for production environments.
Install and configure H2O HTTP/2 web server with FastCGI and SSL certificates
Deploy H2O, a high-performance HTTP/2 web server with native FastCGI support and SSL/TLS termination. Configure virtual hosts, PHP-FPM integration, and performance optimization for production environments.
Configure ClamAV antivirus scanning with automated threat detection and email alerts
Set up ClamAV daemon for real-time malware detection with automated scanning schedules, email notifications for threats, and optimized performance settings for production servers.
Optimize Apache HTTP server performance with caching, compression and worker tuning
Boost Apache performance through worker MPM optimization, compression modules, and intelligent caching strategies. Achieve 3-5x performance improvements for high-traffic production workloads.
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