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.

security Intermediate

Configure Keycloak custom themes and branding with SSL integration and production deployment

Set up custom Keycloak themes with your organization's branding, implement SSL certificates, and deploy to production with hot reload development workflow and performance optimization.

45 min 4 distros 1,074 views
security Advanced

Configure advanced iptables firewall rules with logging, port knocking, and DDoS protection

Build a production-grade iptables firewall with connection tracking, rate limiting, and port knocking. Includes automated DDoS protection, detailed logging, and security hardening for enterprise environments.

45 min 4 distros 1,395 views
security Intermediate

Configure Grafana LDAP authentication and role-based access control with Active Directory integration

Set up Grafana with LDAP authentication to connect with Active Directory, configure role-based access control for teams, and implement production-ready security policies for enterprise environments.

25 min 4 distros 1,164 views
monitoring Intermediate

Configure Loki with S3 storage backend for scalable centralized logging

Set up Grafana Loki with S3-compatible object storage for scalable log aggregation. Configure retention policies, schema management, and monitoring for production-ready centralized logging infrastructure.

45 min 4 distros 1,065 views
devops Intermediate

Deploy Consul Template for dynamic configuration management with systemd integration

Set up Consul Template to automatically generate configuration files from Consul key-value pairs and service discovery data. This tutorial covers installation, template creation, systemd service configuration, and monitoring setup for production environments.

25 min 4 distros 1,042 views
security Intermediate

Secure Grafana with OAuth authentication and RBAC integration

Configure Grafana with OAuth SSO authentication, implement role-based access control (RBAC), and harden security with SSL certificates for enterprise-grade monitoring dashboard access.

45 min 4 distros 1,413 views
monitoring Intermediate

Set up Prometheus Alertmanager webhook notifications for Loki log alerts with Grafana integration

Configure Prometheus Alertmanager to send webhook notifications for Loki log-based alerts with proper routing, templating, and Grafana dashboard integration for comprehensive monitoring.

45 min 4 distros 1,037 views
security Intermediate

Implement two-factor authentication for SSH with Google Authenticator and TOTP

Secure your SSH connections by adding TOTP-based two-factor authentication using Google Authenticator and PAM modules for an additional layer of protection beyond passwords and keys.

25 min 4 distros 1,153 views
monitoring Intermediate

Configure NGINX log analysis with Loki and Grafana for centralized monitoring

Set up Loki log aggregation with Promtail agent to collect NGINX logs and create Grafana dashboards for comprehensive web server monitoring and analysis.

45 min 4 distros 1,730 views
devops Intermediate

Implement Kafka Streams processing applications with Java and Scala for real-time data analytics

Build production-ready Kafka Streams applications using Java and Scala for real-time data processing, including stateless transformations, stateful aggregations, windowing, and stream joins with exactly-once semantics.

45 min 4 distros 1,046 views
devops Advanced

Setup Kafka Schema Registry with Avro serialization for data processing

Configure Confluent Schema Registry with Avro serialization for production Kafka deployments. Includes schema evolution, producer/consumer integration, and SSL security configuration.

45 min 4 distros 1,061 views
networking Intermediate

Setup HAProxy with Docker container backends for dynamic load balancing

Configure HAProxy 2.8 to automatically discover and load balance traffic across Docker containers with health checks, service discovery, and SSL termination for production-grade dynamic routing.

35 min 4 distros 1,626 views

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