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.

monitoring Intermediate

Monitor OpenVPN connections with Grafana dashboard and Prometheus metrics

Set up comprehensive monitoring for your OpenVPN server using Prometheus to collect connection metrics and Grafana to visualize client connections, bandwidth usage, and server performance through custom dashboards.

45 min 4 distros 278 views
hosting Intermediate

Configure Lighttpd 1.4 with multiple virtual hosts and subdomains

Set up Lighttpd web server with multiple virtual hosts, subdomain routing, SSL certificates, and performance optimization for hosting multiple websites on a single server with security hardening.

45 min 4 distros 285 views
databases Advanced

Set up Redis 7 cluster with multiple master nodes for high availability and horizontal scaling

Configure a production-ready Redis 7 cluster with multiple master nodes and replicas for high availability, automatic failover, and horizontal data distribution. Includes cluster initialization, topology configuration, and comprehensive health monitoring.

45 min 4 distros 306 views
devops Intermediate

Configure Kubernetes pod disruption budgets for high availability with policy enforcement

Learn to configure PodDisruptionBudget resources in Kubernetes to maintain application availability during voluntary disruptions. This tutorial covers creating disruption budgets, implementing policies for different workload types, and monitoring disruption events with kubectl.

45 min 4 distros 642 views
monitoring Advanced

Integrate OpenTelemetry with ELK stack for unified observability and distributed tracing

Set up a comprehensive observability stack by integrating OpenTelemetry Collector with Elasticsearch, Logstash, and Kibana for distributed tracing, metrics collection, and unified monitoring across microservices and applications.

45 min 4 distros 318 views
networking Intermediate

Install and configure Squid 6 proxy server with bandwidth controls and content filtering

Set up Squid 6 proxy server with advanced traffic shaping, content filtering, and user authentication. Configure bandwidth limits, access control lists, and comprehensive logging for enterprise proxy deployments.

45 min 4 distros 256 views
monitoring Intermediate

Set up multi-location monitoring with distributed Uptime Kuma instances

Deploy multiple Uptime Kuma instances across different geographic locations to monitor your services from various vantage points. This setup provides comprehensive monitoring coverage, reduces false positives, and enables regional performance analysis with centralized alerting.

45 min 4 distros 330 views
security Intermediate

Set up centralized logging with rsyslog and logrotate for security events

Configure a centralized rsyslog server to collect security events from multiple systems, implement automated log rotation with logrotate, and set up filtering and alerting for critical security incidents across your infrastructure.

45 min 4 distros 379 views
performance Advanced

Optimize Linux RAID configuration for maximum disk performance with mdadm and advanced tuning

Learn how to configure and optimize Linux RAID arrays with mdadm for maximum disk performance. This comprehensive guide covers RAID level selection, advanced mdadm parameters, kernel I/O scheduler optimization, and file system tuning for high-throughput workloads.

45 min 4 distros 779 views
monitoring Advanced

Monitor MariaDB Galera cluster with Prometheus and Grafana for high availability insights

Configure comprehensive monitoring for MariaDB Galera clusters using Prometheus exporters and Grafana dashboards to track cluster health, replication status, and performance metrics with automated alerting for production environments.

45 min 4 distros 307 views
performance Intermediate

Set up Linux performance monitoring with perf tools and flame graphs

Configure perf tools and FlameGraph toolkit to capture detailed CPU profiling data and generate interactive flame graphs for Linux performance analysis. Monitor application hotspots, CPU usage patterns, and identify performance bottlenecks in production environments.

45 min 4 distros 395 views
performance Advanced

Implement Varnish cache warming with Kubernetes CronJobs

Set up automated Varnish cache warming using Kubernetes CronJobs to preload frequently accessed content and improve website performance. This tutorial covers creating cache warming scripts, Docker containers, and automated scheduling for production environments.

45 min 4 distros 279 views

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