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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Linux
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Performance
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Databases
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DNS, load balancing, VPN, TCP/IP, routing
DevOps
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Monitoring
Logging, alerting, metrics, observability
Most viewed
Install and configure ArgoCD for GitOps continuous deployment with RBAC and SSL
devopsInstall and configure PostgreSQL 17 with performance tuning and security hardening
databasesInstall and configure Loki for centralized log aggregation with Grafana integration
monitoringInstall and configure WireGuard VPN server with client management
networkingInstall and configure CockroachDB cluster with high availability and distributed SQL
databasesRecently published
Configure Nagios SNMP monitoring for network devices with automated discovery and templates
monitoringIntegrate Elasticsearch 8 with Prometheus monitoring and Grafana dashboards
monitoringSet up NGINX web application firewall with ModSecurity 3 and OWASP Core Rule Set
securityConfigure NGINX reverse proxy with advanced caching and load balancing
hostingConfigure Netdata alerts with Slack and Microsoft Teams for real-time monitoring notifications
monitoringConfigure 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.
Integrate Elasticsearch 8 with Prometheus monitoring and Grafana dashboards
Set up comprehensive monitoring for Elasticsearch 8 using Prometheus metrics collection and Grafana visualization. This tutorial covers exporter installation, metric configuration, dashboard setup, and alerting rules for production environments.
Set up NGINX web application firewall with ModSecurity 3 and OWASP Core Rule Set
Configure a production-grade web application firewall using NGINX with ModSecurity 3 and OWASP Core Rule Set. Includes logging, monitoring, and fail2ban integration for comprehensive threat protection.
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.
Configure Thanos Ruler for distributed alerting across multiple Prometheus clusters
Set up Thanos Ruler to create a unified alerting layer across distributed Prometheus instances. This tutorial covers installation, global rule configuration, and cross-cluster alert federation for enterprise monitoring.
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.
Configure ClickHouse users and RBAC for production environments with authentication and access control
Secure your ClickHouse deployment with proper user authentication, role-based access control, and production-grade security policies. Learn to create users, manage roles, implement quota systems, and monitor access patterns for enterprise environments.
Implement encryption for Consul backups using GPG with automated snapshots and secure storage
Learn to create encrypted Consul backups using GPG encryption with automated snapshot scripts, secure key management, and remote storage integration for production disaster recovery.
Implement SNMP device auto-discovery with network scanning and automated inventory management
Set up automated SNMP device discovery using nmap network scanning and Python scripts for dynamic inventory management. Integrate with Zabbix and Grafana for comprehensive network monitoring and visualization.
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.
Implement Apache web application firewall with ModSecurity 3 and OWASP Core Rule Set
Deploy ModSecurity 3 as an Apache module with OWASP Core Rule Set to protect web applications from common attacks. Configure real-time logging, custom rules, and automated threat detection for production environments.
Implement TimescaleDB backup strategies and point-in-time recovery with automated failover
Configure comprehensive TimescaleDB backup solutions with continuous WAL archiving, automated point-in-time recovery procedures, and monitoring systems to ensure data protection and business continuity.
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