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
hostingConfigure Linux system time synchronization with chrony and NTP hardening
linuxInstall and configure Caddy web server with automatic HTTPS and reverse proxy
hostingInstall and configure Uvicorn ASGI server with systemd and reverse proxy for FastAPI applications
hostingInstall and configure Ollama for local AI models on Linux servers
devopsRecently published
Configure Nagios Core 4.5 SSL certificates and security hardening with authentication controls
securitySet up Nagios Core 4.5 distributed monitoring with NRPE for remote host checks
monitoringOptimize systemd journal logging performance and storage
linuxConfigure SELinux mandatory access controls for enhanced security
securityConfigure HAProxy load balancing with multiple backend servers
networkingConfigure SELinux mandatory access controls for enhanced security
Set up SELinux on Ubuntu and Debian systems, configure security modes and policies, create custom application rules, and implement comprehensive monitoring for enhanced Linux security hardening.
Set up development database environments with environment variables
Learn to configure PostgreSQL, MySQL, and MariaDB development databases using environment variables for secure connection management and simplified configuration across different environments.
Configure MariaDB 11.6 monitoring with Prometheus and Grafana dashboards
Set up comprehensive MariaDB monitoring with Prometheus mysqld_exporter metrics collection and Grafana visualization. Configure database performance alerts, query monitoring, and custom dashboards for production MariaDB instances.
Configure MariaDB Galera cluster 10.11 for multi-master replication with automatic failover
Set up a highly available MariaDB Galera cluster with multi-master replication, automatic failover, and synchronous data replication across multiple database nodes for enterprise applications.
Configure systemd user services for application startup
Learn how to configure systemd user services to automatically start applications without root privileges. This guide covers creating service units, managing lifecycle, and troubleshooting user services for reliable application startup.
Configure Linux development environment with Docker and Docker Compose
Set up a complete Docker development environment with Docker Compose for containerized application development. Install Docker Engine, configure user permissions, and establish efficient development workflows.
Implement Node.js application deployment with Git hooks and PM2 clustering
Set up automated Node.js application deployment using Git hooks for continuous integration, combined with PM2 clustering for high availability and load distribution across multiple CPU cores.
Configure ScyllaDB SSL encryption and authentication with certificate management and security hardening
Secure your ScyllaDB cluster with comprehensive SSL/TLS encryption for client connections and inter-node communication. This tutorial covers certificate generation, authentication setup, and production security hardening.
Monitor Cherokee web server performance with Grafana and Prometheus metrics collection
Set up comprehensive Cherokee web server monitoring with Prometheus metrics collection and Grafana dashboards. Configure alerting rules, performance thresholds, and real-time visualization for production Cherokee deployments.
Monitor OSPF network topology with Prometheus and Grafana dashboards
Set up comprehensive OSPF network monitoring using FRRouting, Prometheus SNMP exporter, and Grafana dashboards to track network topology changes, LSA states, and routing convergence in real-time.
Monitor ScyllaDB cluster with Prometheus and Grafana for comprehensive performance tracking
Set up complete ScyllaDB cluster monitoring using Prometheus for metrics collection and Grafana for visualization. Configure alerting rules for proactive performance monitoring and issue detection.
Configure Jetty clustering and session replication for high availability
Set up Eclipse Jetty 12 in a clustered configuration with session replication across multiple nodes. This tutorial covers installation, clustering setup with JDBC session persistence, load balancer integration, and production monitoring for high-availability web applications.
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