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.

databases Advanced

Configure PostgreSQL 17 SSL encryption and certificate-based authentication

Set up a private CA, issue server and client certificates, enforce TLS 1.2+ with strong ciphers, and configure pg_hba.conf for mutual TLS client certificate authentication in PostgreSQL 17.

45 min 4 distros 161 views
monitoring Advanced

Configure Jaeger with Elasticsearch backend security and encryption

Set up secure communication between Jaeger and Elasticsearch using TLS encryption, authentication, and production-grade security hardening for distributed tracing infrastructure.

45 min 4 distros 605 views
security Advanced

Configure Redis 7 cluster SSL encryption and authentication for production security

Secure your Redis 7 cluster with TLS encryption, client authentication, and inter-node SSL communication for production environments. Includes certificate generation, authentication setup, and security validation.

45 min 4 distros 757 views
security Advanced

Implement backup encryption key rotation and secure management with GPG and automated scripts

Build a production-grade backup encryption system with automated GPG key rotation, secure key distribution, and monitoring. Learn to implement enterprise-level key management policies with systemd timers and secure storage practices.

45 min 4 distros 438 views
security Advanced

Configure Istio security policies with external authorization services integration

Set up comprehensive Istio security policies with external authorization services, JWT validation, and RBAC integration for enterprise-grade service mesh security and compliance.

45 min 4 distros 526 views
security Advanced

Implement Istio security scanning and vulnerability management for Kubernetes service mesh

Set up comprehensive security scanning and vulnerability management for Istio service mesh using Trivy, Falco, and security policies to protect Kubernetes workloads from threats and compliance violations.

45 min 4 distros 516 views
security Advanced

Set up Kubernetes container image security scanning with Trivy and admission controllers

Implement automated security scanning for Kubernetes container images using Trivy scanner and admission controllers to block vulnerable images before deployment.

45 min 4 distros 652 views
monitoring Intermediate

Configure NTP monitoring with Grafana dashboards and Prometheus alerting

Set up comprehensive time synchronization monitoring using chrony, Prometheus node exporter, and custom Grafana dashboards with alerting for time drift and NTP service failures.

25 min 4 distros 689 views
security Intermediate

Configure Apache SSL hardening with perfect forward secrecy and modern security protocols

Harden Apache HTTP server with modern SSL/TLS configuration, perfect forward secrecy cipher suites, and security headers to protect against common web vulnerabilities and ensure compliance with security standards.

25 min 4 distros 486 views
databases Advanced

Configure MongoDB sharding with zone-based data distribution for geographic workloads

Set up MongoDB sharding with geographic zones to distribute data based on location, ensuring optimal performance for global applications and regulatory compliance.

45 min 4 distros 484 views
devops Advanced

Configure Kubernetes secrets management with Vault integration for secure container orchestration

Set up HashiCorp Vault Agent Injector to automatically inject secrets into Kubernetes pods without storing sensitive data in container images or configuration files. This production-grade approach replaces hardcoded secrets with dynamic, secure credential management.

45 min 4 distros 709 views
monitoring Advanced

Monitor Kubernetes network policies with Prometheus and Grafana for enhanced cluster security

Set up comprehensive monitoring for Kubernetes network policies using Prometheus and Grafana. Configure CNI metrics collection, create security dashboards, and implement alerting for policy violations and traffic anomalies.

45 min 4 distros 576 views

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