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 Intermediate

Configure PostgreSQL 17 connection pooling with PgBouncer for high availability

Deploy PgBouncer in front of PostgreSQL 17 with session, transaction and statement pooling modes, SCRAM-SHA-256 authentication, keepalived-based HA, and Prometheus monitoring for production workloads.

45 min 4 distros 513 views
monitoring Advanced

Configure Consul Connect service mesh monitoring with distributed tracing

Set up comprehensive monitoring for Consul Connect service mesh with Prometheus metrics, Grafana dashboards, Jaeger distributed tracing, and Envoy proxy observability for production-grade service mesh operations.

45 min 4 distros 1,309 views
monitoring Intermediate

Configure OpenTelemetry custom metrics for application monitoring with Prometheus and Grafana

Set up OpenTelemetry SDK to collect custom application metrics, export them to Prometheus for storage, and visualize performance data in Grafana dashboards with automated alerting.

45 min 4 distros 1,053 views
monitoring Intermediate

Configure ScyllaDB cluster monitoring with Prometheus and Grafana dashboards

Set up comprehensive monitoring for ScyllaDB clusters using Prometheus metrics collection and Grafana visualization dashboards. Configure alerting rules for performance monitoring and health checks.

45 min 4 distros 851 views
networking Advanced

Configure advanced iptables QoS with fwmark and multiple interfaces

Set up traffic shaping with iptables packet marking, HTB queueing discipline, and multi-interface QoS policies for bandwidth management and network performance optimization.

45 min 4 distros 1,049 views
devops Advanced

Setup S3-compatible disaster recovery with cross-region replication using MinIO

Configure MinIO clusters across multiple regions with automated cross-region bucket replication, SSL encryption, and comprehensive monitoring for enterprise-grade disaster recovery.

45 min 4 distros 1,082 views
monitoring Intermediate

Configure Redis cluster monitoring with custom Grafana dashboards

Set up comprehensive monitoring for your Redis cluster using redis_exporter, Prometheus, and Grafana. Configure custom dashboards and alerting rules to track performance metrics, cluster health, and resource utilization.

25 min 4 distros 897 views
monitoring Intermediate

Setup MinIO monitoring with Prometheus and Grafana dashboards

Configure comprehensive monitoring for MinIO object storage with Prometheus metrics collection and Grafana dashboards for performance, capacity, and health tracking.

45 min 4 distros 1,100 views
monitoring Intermediate

Implement Node.js application monitoring with Prometheus metrics and Grafana dashboards

Set up comprehensive Node.js application monitoring using Prometheus metrics collection with the prom-client library and create custom Grafana dashboards for performance insights and alerting.

45 min 4 distros 869 views
networking Advanced

Implement OSPF multi-area design with FRRouting and advanced routing policies

Deploy multi-area OSPF networks with FRRouting, configure area types and LSA filtering, implement advanced routing policies with route maps, and integrate BGP redistribution for enterprise network design.

45 min 4 distros 999 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 769 views
security Intermediate

Implement Network Time Security (NTS) for encrypted time synchronization with chrony

Set up Network Time Security (NTS) with chrony to provide cryptographically authenticated and encrypted time synchronization, protecting against time-based attacks and ensuring secure clock synchronization across your infrastructure.

25 min 4 distros 1,025 views

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