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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Install and configure Deno for web development with systemd and reverse proxy

hosting
10,035

Install and configure Uptime Kuma for website monitoring with SSL and email alerts

monitoring
5,796

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

hosting
4,814

Install and configure TimescaleDB with PostgreSQL for high-performance time-series data

databases
4,270

Install and configure Ollama for local AI models on Linux servers

devops
4,185

Recently published

Configure HAProxy with Consul for dynamic service discovery and automatic backend updates

networking
1 day ago

Implement Istio multi-cluster canary deployments and traffic splitting

devops
3 days ago

Implement HAProxy WAF integration with ModSecurity 3 for advanced threat protection

security
5 days ago

Configure PostgreSQL 17 SSL encryption and certificate-based authentication

databases
2 weeks ago

Set up HAProxy SSL termination with Let's Encrypt certificates

networking
2 weeks ago
"configuration" × Clear all
monitoring Intermediate

Configure Node.js application monitoring with PM2 and Grafana

Set up comprehensive Node.js application monitoring using PM2 process manager with Prometheus metrics collection and Grafana dashboards for production-grade observability and alerting.

45 min 4 distros 623 views
monitoring Intermediate

Configure Nagios custom plugins development for specialized monitoring requirements

Learn to develop custom Nagios plugins for specialized monitoring requirements including setting up the development environment, writing check scripts in multiple languages, and integrating them into your Nagios Core monitoring infrastructure.

45 min 4 distros 591 views
security Intermediate

Configure Nagios Core 4.5 SSL certificates and security hardening with authentication controls

Secure your Nagios monitoring with SSL certificates, advanced authentication, and comprehensive access controls. This guide covers Let's Encrypt integration, web interface hardening, and security monitoring setup.

45 min 4 distros 580 views
monitoring Intermediate

Set up Nagios Core 4.5 distributed monitoring with NRPE for remote host checks

Configure Nagios Core server with NRPE agents for distributed monitoring across multiple servers. Set up remote host checks, service monitoring, and centralized alerting for comprehensive infrastructure oversight.

45 min 4 distros 650 views
linux Intermediate

Optimize systemd journal logging performance and storage

Learn how to optimize systemd journald for production environments by configuring storage limits, compression, performance settings, and implementing log forwarding with monitoring.

25 min 4 distros 840 views
security Intermediate

Configure SELinux mandatory access controls for enhanced security

Set up SELinux on Ubuntu and Debian systems, configure security modes and policies, create custom application rules, and implement comprehensive monitoring for enhanced Linux security hardening.

45 min 4 distros 527 views
networking Intermediate

Configure HAProxy load balancing with multiple backend servers

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

45 min 4 distros 2,467 views
databases Beginner

Set up development database environments with environment variables

Learn to configure PostgreSQL, MySQL, and MariaDB development databases using environment variables for secure connection management and simplified configuration across different environments.

25 min 4 distros 631 views
hosting Intermediate

Configure NGINX virtual hosts with SSL certificates for multiple domains

Set up multiple domains on a single NGINX server with automatic SSL certificates from Let's Encrypt. Handle domain routing, certificate management, and secure configurations for production hosting.

25 min 4 distros 829 views
monitoring Intermediate

Configure MariaDB 11.6 monitoring with Prometheus and Grafana dashboards

Set up comprehensive MariaDB monitoring with Prometheus mysqld_exporter metrics collection and Grafana visualization. Configure database performance alerts, query monitoring, and custom dashboards for production MariaDB instances.

25 min 4 distros 974 views
databases Advanced

Configure MariaDB Galera cluster 10.11 for multi-master replication with automatic failover

Set up a highly available MariaDB Galera cluster with multi-master replication, automatic failover, and synchronous data replication across multiple database nodes for enterprise applications.

45 min 4 distros 918 views
linux Intermediate

Configure systemd user services for application startup

Learn how to configure systemd user services to automatically start applications without root privileges. This guide covers creating service units, managing lifecycle, and troubleshooting user services for reliable application startup.

25 min 4 distros 1,003 views

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