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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Install and configure Deno for web development with systemd and reverse proxy

hosting
10,456

Install and configure Uptime Kuma for website monitoring with SSL and email alerts

monitoring
6,242

Install and configure Caddy web server with automatic HTTPS and reverse proxy

hosting
5,305

Fix apt update E: Repository no longer has a Release file

linux
5,151

Install and configure TimescaleDB with PostgreSQL for high-performance time-series data

databases
4,821

Recently published

Configure MariaDB ColumnStore for high-performance analytics workloads

databases
1 day ago

Implement Kibana 8 custom threat hunting dashboards for security incident response

monitoring
3 days ago

Configure Logstash 8 security pipelines with threat intelligence enrichment

monitoring
1 week ago

Configure Ansible Vault integration with HashiCorp Vault for secrets management

devops
2 weeks ago

Implement Thanos Ruler for distributed alerting and recording rules across Prometheus clusters

monitoring
2 weeks ago
"alerting" × Clear all
devops Intermediate

Implement Kubernetes pod disruption budgets for high availability during scaling events

Configure Pod Disruption Budgets to ensure application availability during cluster maintenance and scaling operations. Learn to implement PDB policies, test disruption scenarios, and maintain service continuity in Kubernetes.

25 min 4 distros 1,233 views
monitoring Intermediate

Set up Linux storage monitoring with smartmontools and automated health alerts

Monitor disk health and prevent storage failures with S.M.A.R.T monitoring, automated email alerts, and custom dashboards. Covers smartd daemon configuration, health checks, and integration with monitoring systems.

25 min 4 distros 1,136 views
performance Intermediate

Configure Linux filesystem tuning and optimization for database workloads

Optimize Linux filesystem performance for database workloads by configuring mount options, I/O schedulers, and kernel parameters to maximize database throughput and minimize latency.

45 min 4 distros 835 views
security Intermediate

Implement Caddy 2 rate limiting and DDoS protection with advanced security rules

Configure Caddy 2 web server with comprehensive rate limiting, request throttling, and DDoS protection using built-in security modules and advanced filtering rules.

45 min 4 distros 1,012 views
monitoring Intermediate

Implement log-based monitoring and alerting with Grafana and Loki

Set up comprehensive log aggregation with Loki, centralized visualization with Grafana dashboards, and automated alerting rules for proactive incident response across your infrastructure.

45 min 4 distros 865 views
databases Advanced

Setup automated backup verification and recovery testing with PostgreSQL, MySQL and filesystem backups

Build a comprehensive backup verification framework that automatically tests database restores, validates filesystem backups, and performs recovery testing using systemd timers and custom scripts.

45 min 4 distros 790 views
security Intermediate

Implement Linux security hardening with CIS benchmarks and automated compliance scanning

Harden your Linux systems using CIS benchmarks with automated compliance scanning and continuous monitoring. Learn to implement security controls for filesystem permissions, user authentication, network policies, and maintain ongoing compliance with industry standards.

45 min 4 distros 919 views
linux Intermediate

Configure centralized logging with rsyslog and logrotate for system monitoring and log management

Set up a centralized logging system using rsyslog server to collect logs from multiple clients, implement TLS encryption for secure transmission, and configure logrotate for automated log rotation and management.

45 min 4 distros 1,138 views
devops Advanced

Implement Kubernetes workload rightsizing with VPA recommendations and cost analysis

Set up Vertical Pod Autoscaler to automatically optimize resource requests and limits for your Kubernetes workloads. Create cost analysis dashboards to track resource utilization and identify opportunities for rightsizing containers in production clusters.

45 min 4 distros 779 views
devops Advanced

Configure Kubernetes cluster autoscaler with mixed instance types for cost optimization

Set up Kubernetes cluster autoscaler 1.30 with mixed instance types and spot instances to automatically scale nodes based on demand while minimizing infrastructure costs through intelligent instance selection and workload optimization.

45 min 4 distros 861 views
devops Advanced

Configure Apache Airflow DAG performance optimization best practices

Optimize Apache Airflow DAGs for production with parallelism tuning, resource allocation strategies, and performance monitoring. Learn executor configuration, task dependency optimization, and troubleshooting techniques for high-throughput workflows.

45 min 4 distros 1,167 views
networking Advanced

Implement WireGuard multi-site mesh networking with automatic routing and failover

Deploy a scalable WireGuard mesh network across multiple sites with automatic routing, failover mechanisms, and centralized management for high-availability site-to-site connectivity.

45 min 4 distros 1,061 views

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