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.

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Configure Linux system time synchronization with chrony and NTP hardening

linux
663

Install and configure CockroachDB cluster with high availability and distributed SQL

databases
649

Configure network interface monitoring with ICMP ping and connectivity testing

networking
629

Install and configure PostgreSQL 17 with performance tuning and security hardening

databases
628

Install and configure ArgoCD for GitOps continuous deployment with RBAC and SSL

devops
613

Recently published

Deploy Envoy-based service mesh in Kubernetes production environment with SSL and observability

devops
42 minutes ago

Set up Zabbix proxy for distributed network monitoring

monitoring
45 minutes ago

Implement Envoy proxy JWT authentication with OAuth2 integration

security
47 minutes ago

Configure Kafka Streams for real-time data processing and analytics

devops
49 minutes ago

Implement Podman pod security with network policies and microsegmentation

security
9 hours ago
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linux Intermediate

Configure Linux user session limits with systemd and pam_limits for resource management

Learn to set up comprehensive user session resource limits using both traditional pam_limits.conf and modern systemd user slices. This tutorial covers memory, CPU, and process limits to prevent resource exhaustion on multi-user systems.

25 min 4 distros 37 views
monitoring Advanced

Install and configure Graylog 5 for centralized log management with MongoDB and Elasticsearch

Set up Graylog 5 with MongoDB 8.0 and Elasticsearch 8 for centralized log collection, analysis, and alerting. Learn to configure secure inputs, data streams, and monitoring for production environments.

45 min 4 distros 70 views
databases Intermediate

Set up automated MySQL database backups with compression and rotation

Configure automated MySQL database backups with compression, encryption, and rotation using systemd timers. Includes monitoring and alerting for backup failures.

45 min 4 distros 106 views
networking Intermediate

Configure Tailscale with Kubernetes cluster networking integration

Set up Tailscale mesh VPN with Kubernetes cluster integration for secure pod-to-pod communication, subnet routing, and service discovery across distributed nodes.

25 min 4 distros 49 views
security Intermediate

Configure NGINX rate limiting and advanced security rules for DDoS protection

Configure NGINX with comprehensive rate limiting, connection throttling, and advanced security headers to protect your web applications from DDoS attacks and malicious traffic. Learn to implement zone-based rate limiting, geographic blocking, and real-time monitoring for production environments.

25 min 4 distros 87 views
monitoring Advanced

Configure Thanos Receiver clustering for high availability and load distribution

Set up Thanos Receiver clustering with hashring configuration to distribute Prometheus remote write traffic across multiple replicas for high availability and scalability.

45 min 4 distros 97 views
monitoring Intermediate

Monitor PostgreSQL performance with Prometheus and Grafana dashboards

Set up comprehensive PostgreSQL monitoring using Prometheus PostgreSQL exporter and Grafana dashboards. Configure performance metrics collection, visualization, and alerting for database optimization and troubleshooting.

25 min 4 distros 47 views
databases Intermediate

Implement Redis backup automation with compression and encryption

Set up automated Redis backups with compression and GPG encryption for production environments. Create systemd timers for scheduled backups and implement secure remote storage for Redis data protection.

25 min 4 distros 105 views
monitoring Intermediate

Implement Grafana alerting with Prometheus and InfluxDB for comprehensive monitoring

Set up comprehensive Grafana alerting using both Prometheus metrics and InfluxDB time-series data to monitor your infrastructure from multiple data sources. This tutorial covers configuring data sources, creating alert rules, and setting up notification channels for production monitoring.

45 min 4 distros 68 views
databases Intermediate

Implement MongoDB 8.0 change streams for real-time data processing and application synchronization

Set up MongoDB 8.0 change streams to monitor database changes in real-time. Configure replica sets, implement Python and Node.js clients, and add filtering and resumability for production applications.

45 min 4 distros 97 views
monitoring Intermediate

Set up OpenTelemetry custom instrumentation and metrics collection with Prometheus integration

Configure OpenTelemetry Collector with custom metrics exporters and processors, set up application instrumentation with SDKs, and integrate with Prometheus and Grafana for comprehensive distributed system monitoring and observability.

45 min 4 distros 113 views
devops Intermediate

Implement Kubernetes cluster autoscaler for automatic node scaling

Configure Kubernetes cluster autoscaler to automatically add and remove worker nodes based on pod resource demands. This tutorial covers cloud provider integration, scaling policies, and monitoring for production-grade horizontal scaling.

45 min 4 distros 89 views

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