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
Setup Node.js error tracking with Sentry for production monitoring and debugging
monitoringImplement Node.js application monitoring with Prometheus metrics and Grafana dashboards
monitoringImplement OSPF multi-area design with FRRouting and advanced routing policies
networkingConfigure Istio security policies with external authorization services integration
securityImplement Docker network security with custom bridge networks and container isolation
securityConfigure Deno application clustering with load balancing for high availability
Set up Deno application clustering with worker threads and HAProxy load balancing for production-grade high availability deployments. Configure health checks, monitoring, and automatic failover mechanisms.
Deploy multiple Ollama instances with HAProxy load balancing for high availability AI model serving
Set up multiple Ollama instances behind HAProxy load balancer for high-availability AI model serving with health checks, SSL termination, and automatic failover to eliminate single points of failure.
Set up MariaDB Galera Cluster 11.6 for multi-master replication with automatic failover
Configure a production-ready MariaDB Galera cluster with three nodes for multi-master replication, automatic failover, and SSL encryption. Includes HAProxy load balancing and comprehensive monitoring for high availability database operations.
Configure ClamAV cluster scanning for high availability and enterprise threat detection
Build a production-grade ClamAV cluster with HAProxy load balancing, shared virus definitions, and comprehensive monitoring for enterprise-scale threat detection and high availability.
Setup Tomcat 10 clustering with HAProxy load balancing for high availability
Configure Apache Tomcat 10 clustering with HAProxy load balancing to distribute traffic across multiple application server instances. Implement session replication and automatic failover for production-grade Java web applications with high availability and zero-downtime deployments.
Configure network interface aliases and secondary IP addresses on Linux
Learn how to configure multiple IP addresses on a single network interface using systemd-networkd and NetworkManager. Set up persistent network aliases for hosting multiple services, load balancing, and network segmentation.
Set up Apache Tomcat 11 with SSL certificates and JVM optimization for Java web applications
Install and configure Apache Tomcat 11 with Java 21, SSL/TLS certificates, JVM performance tuning, security hardening, and production-ready monitoring for enterprise Java web applications.
Configure network bonding and VLAN tagging for high availability and network segmentation
Set up network bonding for link aggregation and failover protection while implementing VLAN tagging for network segmentation. This tutorial covers bond configuration with Netplan and NetworkManager across multiple interfaces.
Set up Zabbix 7 high availability cluster with PostgreSQL replication and automated failover
Build a production-grade Zabbix 7 high availability cluster with PostgreSQL streaming replication, HAProxy load balancing, and automated failover capabilities for enterprise monitoring.
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