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 Uvicorn ASGI server with systemd and reverse proxy for FastAPI applications
hostingInstall and configure Ollama for local AI models on Linux servers
devopsInstall and configure Uptime Kuma for website monitoring with SSL and email alerts
monitoringRecently published
Implement NGINX Plus active health checks for enterprise environments
hostingSetup Prometheus Blackbox Exporter for endpoint monitoring with SSL and alerting
monitoringConfigure Prometheus alerting with AlertManager notifications and webhook integration
monitoringConfigure Elasticsearch cross-cluster replication for disaster recovery
databasesConfigure InfluxDB 2.7 clustering for high availability with data replication and automated failover
databasesSetup remote backup storage with S3-compatible encryption and automated retention policies
Configure secure, encrypted backup storage using S3-compatible providers with automated retention policies, client-side GPG encryption, and monitoring scripts for reliable data protection.
Configure advanced iptables rules for bridge network security and container isolation
Implement comprehensive bridge network security using advanced iptables rules to isolate containers, control traffic flow, and prevent lateral movement in virtualized environments.
Configure Cherokee web server reverse proxy and load balancing with SSL
Set up Cherokee web server with reverse proxy capabilities, load balancing across backend servers, and SSL encryption for high-performance production environments.
Configure NTP server with chrony and security hardening for precise time synchronization
Set up a production-grade NTP server using chrony with client access controls, firewall rules, and security hardening. Learn to configure upstream time sources, implement monitoring, and troubleshoot common synchronization issues.
Configure OSPF with FRRouting 10 for dynamic routing protocols and network failover
Set up OSPF dynamic routing with FRRouting 10 for automatic network failover and route redistribution. Configure area authentication, routing policies, and monitoring for enterprise network resilience.
Configure Node.js application clustering with PM2 and load balancing
Set up PM2 clustering to scale Node.js applications across CPU cores with NGINX load balancing. Monitor performance and optimize resource utilization for high-traffic production workloads.
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 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.
Set up MySQL backup encryption and remote storage with rsync
Create automated MySQL backups with GPG encryption and secure remote storage using rsync and SSH keys. This tutorial covers database dumping, compression, encryption, and automated synchronization to remote servers.
Implement Kubernetes network policies with Calico CNI and OPA Gatekeeper for security enforcement
Secure your Kubernetes cluster with Calico CNI network policies and OPA Gatekeeper admission control. This tutorial shows you how to implement pod isolation, policy enforcement, and admission validation for production-grade security.
Monitor Linux system resources with performance alerts and automated responses
Set up comprehensive Linux system monitoring with Prometheus, Node Exporter, and Alertmanager to track CPU, memory, and disk usage with automated alerts and response scripts for proactive system management.
Monitor HAProxy and Consul with Prometheus and Grafana dashboards
Configure comprehensive monitoring for HAProxy load balancer and Consul service discovery using Prometheus metrics collection and Grafana visualization dashboards. This tutorial covers setting up exporters, configuring scraping targets, and creating production-ready monitoring dashboards.
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