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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Recently published

Configure HAProxy with Consul for dynamic service discovery and automatic backend updates

networking
1 day ago

Implement Istio multi-cluster canary deployments and traffic splitting

devops
3 days ago

Implement HAProxy WAF integration with ModSecurity 3 for advanced threat protection

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Configure PostgreSQL 17 SSL encryption and certificate-based authentication

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Set up HAProxy SSL termination with Let's Encrypt certificates

networking
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"prometheus" × Clear all
monitoring Intermediate

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.

25 min 4 distros 1,450 views
monitoring Intermediate

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.

25 min 4 distros 1,000 views
databases Advanced

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.

45 min 4 distros 801 views
performance Intermediate

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.

25 min 4 distros 707 views
security Intermediate

Set up NGINX rate limiting and security headers for DDoS protection

Configure NGINX with comprehensive rate limiting zones, security headers, and DDoS protection rules to secure your web applications against malicious traffic and automated attacks.

25 min 4 distros 1,149 views
databases Intermediate

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.

25 min 4 distros 792 views
monitoring Intermediate

Set up Prometheus and Grafana monitoring stack with Docker Compose

Deploy a complete Prometheus and Grafana monitoring solution using Docker Compose with persistent storage, custom dashboards, and Alertmanager integration for production-ready observability.

25 min 4 distros 1,432 views
hosting Intermediate

Configure NGINX SSL termination with Certbot for Let's Encrypt certificates

Set up NGINX with automatic SSL certificate management using Let's Encrypt and Certbot, including security headers and automated renewal for production-ready HTTPS termination.

25 min 4 distros 630 views
monitoring Intermediate

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.

45 min 4 distros 691 views
monitoring Intermediate

Monitor Varnish 7 performance with Prometheus and Grafana dashboards

Set up comprehensive Varnish monitoring using prometheus-varnish-exporter, custom Grafana dashboards, and performance alerting rules for production cache optimization.

25 min 4 distros 607 views
security Intermediate

Implement Kubernetes network policies for pod-to-pod security and traffic isolation

Set up granular network security in Kubernetes using Calico CNI with default-deny policies and pod-to-pod communication rules for microsegmentation.

45 min 4 distros 615 views
devops Intermediate

Configure Kubernetes ingress controller with NGINX and SSL certificates using cert-manager

Set up NGINX Ingress Controller with automated SSL certificate management using cert-manager for secure routing of external traffic to your Kubernetes services. Configure custom domains, SSL automation, and advanced routing rules for production workloads.

25 min 4 distros 578 views

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