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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Set up HAProxy SSL termination with Let's Encrypt certificates

networking
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Configure HAProxy with Consul for dynamic service discovery

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Configure PostgreSQL 17 connection pooling with PgBouncer for high availability

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Configure Kubernetes secrets management with External Secrets Operator and HashiCorp Vault

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Integrate Jaeger with Istio service mesh for distributed tracing

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"nagios" × Clear all
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 471 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 449 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 505 views
monitoring Intermediate

Implement SNMP trap monitoring and alerting system for proactive network management

Set up comprehensive SNMP trap monitoring with snmptrapd, automated alerting via email and webhooks, and integration with monitoring platforms like Nagios and Zabbix for proactive network management and real-time issue detection.

45 min 4 distros 716 views
monitoring Intermediate

Set up network monitoring with Nagios Core 4.5 and SNMP for infrastructure alerting

Configure Nagios Core 4.5 with SNMP monitoring to track network devices, servers, and services with automated alerting. Set up custom monitoring templates, notification systems, and dashboards for comprehensive infrastructure visibility.

45 min 4 distros 998 views
monitoring Intermediate

Monitor Cherokee web server performance with custom Grafana dashboards and Prometheus alerts

Set up comprehensive monitoring for Cherokee web server with Prometheus metrics collection, custom Grafana dashboards for performance visualization, and automated alerting for critical performance thresholds.

45 min 4 distros 689 views
monitoring Intermediate

Configure Nagios SNMP monitoring for network devices with automated discovery and templates

Set up comprehensive SNMP monitoring in Nagios Core with automated network device discovery, custom templates for switches and routers, and real-time alerting for network infrastructure monitoring.

45 min 4 distros 957 views
monitoring Intermediate

Configure Netdata alerts with Slack and Microsoft Teams for real-time monitoring notifications

Set up comprehensive Netdata alerting with Slack and Microsoft Teams integration. Configure custom alert thresholds, webhook notifications, and automated monitoring responses for real-time system health alerts.

25 min 4 distros 1,102 views
networking Advanced

Set up OpenVPN high availability cluster with automatic failover and load balancing

Build a production-ready OpenVPN high availability cluster using keepalived for automatic failover and HAProxy for load balancing across multiple OpenVPN servers.

90 min 4 distros 803 views
monitoring Intermediate

Integrate Nagios Core 4.5 with Grafana dashboards for advanced monitoring visualization

Connect Nagios Core 4.5 with Grafana through NDOUtils and MySQL to create powerful monitoring dashboards. This integration provides advanced visualization capabilities, real-time alerting, and comprehensive monitoring insights for your infrastructure.

45 min 4 distros 877 views
networking Beginner

Set up network interface monitoring with SNMP and basic traffic analysis

Learn how to install and configure SNMP daemon for network interface monitoring, implement basic traffic analysis with automated alerting, and create monitoring scripts with cron jobs for continuous network performance tracking.

25 min 6 distros 1,358 views
monitoring Beginner

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

Learn how to install Uptime Kuma, a self-hosted monitoring tool, with SSL certificates, email notifications, and comprehensive website monitoring capabilities. Set up automated alerts and maintain reliable uptime tracking for your web services.

25 min 6 distros 5,384 views

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