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

Configure Node.js application monitoring with PM2 and Grafana

Set up comprehensive Node.js application monitoring using PM2 process manager with Prometheus metrics collection and Grafana dashboards for production-grade observability and alerting.

45 min 4 distros 624 views
security Intermediate

Configure Nagios Core 4.5 SSL certificates and security hardening with authentication controls

Secure your Nagios monitoring with SSL certificates, advanced authentication, and comprehensive access controls. This guide covers Let's Encrypt integration, web interface hardening, and security monitoring setup.

45 min 4 distros 581 views
linux Intermediate

Optimize systemd journal logging performance and storage

Learn how to optimize systemd journald for production environments by configuring storage limits, compression, performance settings, and implementing log forwarding with monitoring.

25 min 4 distros 844 views
security Intermediate

Configure SELinux mandatory access controls for enhanced security

Set up SELinux on Ubuntu and Debian systems, configure security modes and policies, create custom application rules, and implement comprehensive monitoring for enhanced Linux security hardening.

45 min 4 distros 528 views
monitoring Intermediate

Configure MariaDB 11.6 monitoring with Prometheus and Grafana dashboards

Set up comprehensive MariaDB monitoring with Prometheus mysqld_exporter metrics collection and Grafana visualization. Configure database performance alerts, query monitoring, and custom dashboards for production MariaDB instances.

25 min 4 distros 975 views
databases Advanced

Configure MariaDB Galera cluster 10.11 for multi-master replication with automatic failover

Set up a highly available MariaDB Galera cluster with multi-master replication, automatic failover, and synchronous data replication across multiple database nodes for enterprise applications.

45 min 4 distros 920 views
linux Intermediate

Configure systemd user services for application startup

Learn how to configure systemd user services to automatically start applications without root privileges. This guide covers creating service units, managing lifecycle, and troubleshooting user services for reliable application startup.

25 min 4 distros 1,005 views
devops Beginner

Configure Linux development environment with Docker and Docker Compose

Set up a complete Docker development environment with Docker Compose for containerized application development. Install Docker Engine, configure user permissions, and establish efficient development workflows.

25 min 4 distros 550 views
databases Advanced

Optimize ScyllaDB performance for time-series data workloads with advanced configuration tuning

Configure ScyllaDB with specialized optimizations for time-series workloads including partitioning strategies, compaction settings, and memory tuning. Set up monitoring with Prometheus and Grafana for production performance insights.

45 min 4 distros 564 views
devops Intermediate

Implement Node.js application deployment with Git hooks and PM2 clustering

Set up automated Node.js application deployment using Git hooks for continuous integration, combined with PM2 clustering for high availability and load distribution across multiple CPU cores.

45 min 4 distros 606 views
databases Advanced

Configure ScyllaDB SSL encryption and authentication with certificate management and security hardening

Secure your ScyllaDB cluster with comprehensive SSL/TLS encryption for client connections and inter-node communication. This tutorial covers certificate generation, authentication setup, and production security hardening.

45 min 4 distros 679 views
performance Intermediate

Configure Varnish ESI (Edge Side Includes) for dynamic content optimization

Set up Varnish Cache 7 with Edge Side Includes to fragment and cache dynamic content separately. ESI allows you to cache static page parts while keeping dynamic sections fresh, improving performance for complex applications with mixed content types.

25 min 4 distros 872 views

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