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.

linux Intermediate

Configure Linux system firewall with nftables and security hardening

Learn how to configure nftables firewall with advanced security rules, rate limiting, and fail2ban integration. This tutorial covers migration from iptables, logging configuration, and production-grade security hardening for modern Linux systems.

45 min 6 distros 739 views
hosting Intermediate

Install and configure Lighttpd web server with SSL and FastCGI for lightweight hosting

Set up Lighttpd web server with SSL certificates from Let's Encrypt and FastCGI support for PHP applications. Configure virtual hosts, optimize performance, and implement security hardening for production hosting.

25 min 6 distros 503 views
linux Intermediate

Configure Linux disk usage monitoring and automated cleanup with systemd timers

Set up automated disk monitoring, log cleanup, and email alerts using systemd timers to prevent disk space issues. Configure log rotation, temporary file cleanup, and threshold-based alerting for production systems.

25 min 6 distros 681 views
hosting Beginner

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

Set up Caddy, a modern web server with automatic HTTPS certificates from Let's Encrypt, zero-config HTTP/2, and built-in reverse proxy capabilities for production applications.

25 min 6 distros 1,663 views
linux Intermediate

Configure Linux system logging with rsyslog and journald for centralized log management

Set up comprehensive Linux logging infrastructure using rsyslog for traditional syslog handling and journald for systemd service logs. Configure remote logging, log rotation, filtering rules, and troubleshoot common logging performance issues.

25 min 6 distros 867 views
linux Intermediate

Configure automatic security updates with unattended-upgrades and email notifications

Set up automated security patching on Linux servers with unattended-upgrades and dnf-automatic. Configure email notifications, update policies, and monitoring to keep your systems secure while maintaining control over critical services.

25 min 6 distros 730 views
devops Advanced

Implement Spark streaming with Kafka and MinIO for real-time analytics and big data processing

Build a production-ready real-time analytics pipeline using Apache Spark 3.5 streaming, Kafka for data ingestion, and MinIO for distributed object storage. This tutorial covers fault-tolerant streaming configurations and end-to-end pipeline implementation.

45 min 4 distros 572 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 472 views
security Intermediate

Secure Podman containers with SELinux and AppArmor mandatory access controls

Implement mandatory access controls for Podman containers using SELinux on Red Hat-based systems and AppArmor on Debian-based systems. Learn to configure security policies, monitor violations, and harden container security with production-grade controls.

45 min 4 distros 604 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 741 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 739 views
monitoring Intermediate

Install and configure Jaeger for distributed tracing with Elasticsearch backend

Set up Jaeger distributed tracing system with Elasticsearch storage backend for microservices monitoring. Configure collector, query service, and UI with SSL security and performance optimization.

45 min 6 distros 604 views

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