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
876

Set up Node.js application security with Helmet and rate limiting

security
755

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

hosting
737

Install and configure Uvicorn ASGI server with systemd and reverse proxy for FastAPI applications

hosting
730

Install and configure PostgreSQL 17 with performance tuning and security hardening

databases
718

Recently published

Configure OSSEC active response for automated threat blocking

security
4 hours ago

Configure CockroachDB 24.3 multi-region deployment with high availability clustering

databases
4 hours ago

Set up Fail2ban with Cloudflare API integration for automatic IP blocking and enhanced security

security
4 hours ago

Configure keepalived with HAProxy backend health monitoring for high availability load balancing

networking
4 hours ago

Configure ModSecurity machine learning anomaly detection for automated threat protection

security
9 hours ago
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security Intermediate

Install and configure Keycloak for enterprise authentication with clustering

Set up Keycloak as an enterprise identity provider with PostgreSQL backend, SSL encryption, and high availability clustering for OAuth2, OpenID Connect, and SAML authentication across your organization.

45 min 6 distros 391 views
databases Intermediate

Install and configure ClickHouse for high-performance analytics with clustering

Set up ClickHouse OLAP database with clustering support for real-time analytics workloads. Configure distributed tables, security, SSL encryption, and monitoring for production environments.

45 min 6 distros 379 views
devops Intermediate

Install and configure GitLab CE with CI/CD runners and backup automation

Set up a complete self-hosted GitLab CE instance with SSL encryption, Docker-based CI/CD runners, automated backup system, and security hardening for production workloads.

45 min 6 distros 543 views
devops Intermediate

Install and configure Consul for service discovery with clustering and security

Set up HashiCorp Consul for distributed service discovery with a secure three-node cluster, ACL authentication, and encrypted communication for production microservices environments.

45 min 6 distros 560 views
monitoring Intermediate

Install and configure Loki for centralized log aggregation with Grafana integration

Set up Loki and Promtail for centralized log aggregation with retention policies, storage optimization, and Grafana integration for comprehensive log monitoring and alerting.

25 min 6 distros 695 views
networking Intermediate

Install and configure HAProxy for high availability load balancing

Set up HAProxy with SSL termination, keepalived for high availability, and comprehensive health checks to distribute traffic across multiple backend servers with automatic failover.

45 min 6 distros 493 views
databases Intermediate

Install and configure Elasticsearch 8 with security and performance optimization

Set up a production-ready Elasticsearch 8 cluster with SSL/TLS security, optimized JVM settings, and automated backups. Includes memory tuning, index mapping strategies, and common troubleshooting fixes.

45 min 6 distros 409 views
databases Intermediate

Install and configure Redis 7 with clustering and security hardening

Set up Redis 7 with master-replica clustering, SSL/TLS encryption, ACL authentication, and production-grade security hardening. Includes performance tuning, backup strategies, and monitoring configuration for high-availability deployments.

45 min 6 distros 510 views
databases Intermediate

Install and configure PostgreSQL 17 with performance tuning and security hardening

Learn to install PostgreSQL 17 from official repositories, optimize performance with proper memory settings, and implement security best practices including SSL encryption and authentication hardening.

45 min 6 distros 718 views
devops Intermediate

Install and configure Ollama for local AI models on Linux servers

Set up Ollama to run large language models locally on your Linux server. This tutorial covers installation, GPU acceleration, model deployment, API configuration, and performance optimization.

25 min 6 distros 646 views

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