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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Configure Linux system time synchronization with chrony and NTP hardening

linux
884

Set up Node.js application security with Helmet and rate limiting

security
757

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

hosting
746

Install and configure Uvicorn ASGI server with systemd and reverse proxy for FastAPI applications

hosting
740

Install and configure PostgreSQL 17 with performance tuning and security hardening

databases
725

Recently published

Set up Cassandra backup automation with nodetool

databases
1 hour ago

Configure OSSEC vulnerability detection with CVE scanning and automated security alerts

security
1 hour ago

Monitor Apache Cassandra cluster with Prometheus and Grafana dashboards

monitoring
1 hour ago

Integrate OSSEC with Splunk for centralized security monitoring and log analysis

security
1 hour ago

Configure systemd service resource limits and security isolation

linux
10 hours ago
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devops Advanced

Implement Kubernetes cluster autoscaling with Helm charts and KEDA for dynamic workload scaling

Configure comprehensive Kubernetes autoscaling with cluster autoscaler for node management, KEDA for event-driven pod scaling, and vertical pod autoscaler for resource optimization. This tutorial covers production-grade deployment using Helm charts with monitoring and optimization strategies.

45 min 4 distros 350 views
security Intermediate

Configure GitLab LDAP authentication and user management with Active Directory integration

Set up GitLab LDAP authentication with Active Directory to centralize user management, enable automatic user provisioning, and implement group-based access control for your GitLab instance.

45 min 4 distros 352 views
devops Intermediate

Setup SonarQube scanner for multiple programming languages with automated code quality analysis

Configure SonarQube Scanner CLI to analyze Java, Python, JavaScript, and C# projects with automated quality gates and CI/CD integration. Streamline code quality analysis across your entire development pipeline with Docker and Jenkins automation.

45 min 4 distros 400 views
devops Advanced

Implement comprehensive Apache Airflow DAG testing and validation strategies with pytest and best practices

Learn to implement production-grade testing for Apache Airflow DAGs using pytest, including unit tests for DAG structure validation, integration testing with test databases, and automated validation pipelines with CI/CD integration.

45 min 4 distros 579 views
databases Advanced

Set up TimescaleDB clustering for high availability with automatic failover

Configure a production-ready TimescaleDB cluster with streaming replication, automatic failover using Patroni, and etcd for distributed consensus to ensure zero-downtime operation of your time-series database.

45 min 4 distros 319 views
linux Intermediate

Optimize Linux system performance with kernel parameters and system tuning

Learn production-grade Linux performance optimization through systematic kernel parameter tuning, memory management, I/O optimization, and network stack configuration to maximize system throughput and responsiveness.

45 min 6 distros 465 views
databases Intermediate

Configure Redis Sentinel for high availability and automatic failover

Set up Redis Sentinel to monitor Redis master-replica deployments and automatically handle failover scenarios. This tutorial covers configuring a 3-node Sentinel cluster with quorum-based decision making for production-grade high availability.

25 min 4 distros 439 views
devops Intermediate

Install and configure GitLab CE with CI/CD runners and backup automation

Set up a complete self-hosted GitLab CE instance with SSL encryption, Docker-based CI/CD runners, automated backup system, and security hardening for production workloads.

45 min 6 distros 548 views
devops Intermediate

Install and configure Ollama for local AI models on Linux servers

Set up Ollama to run large language models locally on your Linux server. This tutorial covers installation, GPU acceleration, model deployment, API configuration, and performance optimization.

25 min 6 distros 657 views

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