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 Advanced

Set up Zabbix 7 high availability cluster with PostgreSQL replication and automated failover

Build a production-grade Zabbix 7 high availability cluster with PostgreSQL streaming replication, HAProxy load balancing, and automated failover capabilities for enterprise monitoring.

90 min 4 distros 719 views
devops Intermediate

Configure GitLab container registry with SSL certificates and security hardening

Set up GitLab's integrated Docker registry with SSL/TLS encryption, security headers, and production-ready hardening for secure container image storage and distribution.

45 min 4 distros 472 views
monitoring Intermediate

Configure Zabbix SNMP monitoring for network devices with automated discovery and templates

Set up comprehensive SNMP monitoring for network devices using Zabbix with automated discovery rules, custom templates, and intelligent alerting. Learn to monitor switches, routers, and other network equipment with performance triggers and detailed reporting.

45 min 4 distros 748 views
monitoring Intermediate

Configure Grafana dashboards for InfluxDB collectd metrics with advanced visualization and alerting

Build comprehensive Grafana dashboards to visualize collectd system metrics stored in InfluxDB with custom panels, advanced queries, and automated alerting rules for production monitoring.

45 min 4 distros 498 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 619 views
security Intermediate

Configure NGINX rate limiting and DDoS protection with advanced security rules

Learn to configure production-grade NGINX rate limiting and DDoS protection with multiple security zones, advanced rules, and real-time monitoring to protect your web applications from malicious traffic and resource exhaustion attacks.

45 min 4 distros 598 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 836 views
monitoring Intermediate

Configure Linux performance monitoring with collectd and InfluxDB 1.8 for real-time metrics collection

Set up comprehensive system monitoring using collectd to collect performance metrics and InfluxDB 1.8 as a time-series database backend. This tutorial covers installation, configuration, and retention policies for production monitoring environments.

25 min 4 distros 772 views
databases Intermediate

Configure TimescaleDB continuous aggregates for real-time analytics with PostgreSQL optimization

Set up TimescaleDB continuous aggregates to automatically compute and maintain real-time materialized views for time-series data analytics. Configure refresh policies, optimize aggregate queries, and implement monitoring for production workloads.

45 min 4 distros 1,228 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 726 views
devops Intermediate

Implement Ansible testing with Molecule and TestInfra for infrastructure automation validation

Set up comprehensive testing for Ansible playbooks using Molecule framework and TestInfra validation. Create automated test scenarios, integrate with CI/CD pipelines, and ensure infrastructure code reliability in production environments.

45 min 4 distros 719 views
databases Intermediate

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

Learn how to install TimescaleDB extension on PostgreSQL for handling time-series data at scale. This tutorial covers hypertables setup, compression policies, performance tuning, and security hardening with SSL.

45 min 6 distros 1,352 views

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