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 advanced SNMP alerting with Prometheus Alertmanager for network monitoring
Set up comprehensive SNMP monitoring with Prometheus exporters and create intelligent alerting rules in Alertmanager to proactively monitor network devices, interfaces, and performance metrics.
Implement Tomcat application monitoring with JMX and Grafana dashboards
Set up comprehensive Apache Tomcat 10 monitoring using JMX metrics, Prometheus JMX Exporter, and Grafana dashboards to track application performance, memory usage, and request metrics in real-time.
Set up centralized logging with Winston and Elasticsearch for Node.js applications
Configure Winston logging in Node.js with Elasticsearch transport for centralized log aggregation, monitoring, and analysis using Kibana dashboards.
Implement Node.js application monitoring with Prometheus metrics collection and Grafana dashboards
Set up comprehensive Node.js application monitoring with Prometheus metrics collection, custom performance tracking, and Grafana dashboards for real-time observability and alerting.
Configure Nginx Redis cluster caching for high availability and performance optimization
Set up Nginx with Redis cluster caching to achieve high availability and optimized performance. This advanced configuration includes cluster setup, failover testing, and performance tuning for production environments.
Setup Prometheus Blackbox Exporter for endpoint monitoring with SSL and alerting
Configure Prometheus Blackbox Exporter to monitor HTTP endpoints, SSL certificates, and DNS resolution with automated alerting rules and Grafana dashboards.
Configure Prometheus alerting with AlertManager notifications and webhook integration
Set up AlertManager to handle Prometheus alerts with email, Slack, and webhook notifications. Configure alerting rules, notification channels, and test the complete alerting pipeline.
Configure Elasticsearch cross-cluster replication for disaster recovery
Set up Elasticsearch cross-cluster replication (CCR) to replicate indices between clusters for disaster recovery. Configure remote clusters, create follower indices, and monitor replication status for high availability.
Configure InfluxDB 2.7 clustering for high availability with data replication and automated failover
Set up a production-ready InfluxDB Enterprise cluster with automatic data replication, failover mechanisms, and comprehensive monitoring using Grafana dashboards for time-series workloads.
Optimize Varnish 7 cache storage with memory tuning and persistence configuration
Configure Varnish 7 memory allocation and storage backends for optimal cache performance. Set up file-based persistence and tune memory parameters for high-traffic workloads with monitoring.
Configure Elasticsearch Index Lifecycle Management (ILM) for automated data retention
Set up Elasticsearch ILM policies to automatically manage index lifecycles through hot, warm, cold, and delete phases. Reduce storage costs and optimize performance by automating data retention and storage tiering.
Set up Telegraf custom plugins for application monitoring with Prometheus and InfluxDB integration
Learn to build custom Telegraf input plugins for application metrics collection, configure dual output to Prometheus and InfluxDB backends, and create comprehensive monitoring dashboards with Grafana for production observability.
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