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
10,131

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

monitoring
5,906

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

hosting
4,929

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

databases
4,408

Install and configure Ollama for local AI models on Linux servers

devops
4,299

Recently published

Configure Kubernetes network monitoring with Hubble and Cilium for traffic visibility

monitoring
5 days ago

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

networking
1 week ago

Implement Istio multi-cluster canary deployments and traffic splitting

devops
1 week ago

Implement HAProxy WAF integration with ModSecurity 3 for advanced threat protection

security
1 week ago

Configure PostgreSQL 17 SSL encryption and certificate-based authentication

databases
3 weeks ago
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monitoring Advanced

Configure advanced htop monitoring with custom scripts and alerting

Build a production-grade monitoring system using custom-compiled htop with automated process analysis scripts and multi-channel alerting for proactive infrastructure management.

45 min 4 distros 691 views
security Intermediate

Configure LDAP authentication for centralized user management with OpenLDAP and SSSD

Set up centralized user authentication using OpenLDAP server with SSSD client integration. Configure PAM and NSS for seamless login across multiple Linux systems with directory-based user management.

45 min 4 distros 864 views
networking Intermediate

Configure SNMP v3 authentication and encryption for secure network monitoring

Set up SNMP version 3 with user authentication and data encryption to secure network monitoring communications. This tutorial covers Net-SNMP daemon configuration, security protocols, and monitoring tool integration.

25 min 4 distros 1,128 views
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 681 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 630 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 658 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 708 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 931 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 584 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 2,554 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 699 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 884 views

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