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
System administration, shell scripting, package management
Hosting & Servers
Web servers, reverse proxies, SSL, domains
Security
Firewalls, hardening, encryption, access control
Performance
Caching, optimization, profiling, load testing
Databases
MySQL, PostgreSQL, Redis, backups, replication
Networking
DNS, load balancing, VPN, TCP/IP, routing
DevOps
CI/CD, Docker, Kubernetes, automation
Monitoring
Logging, alerting, metrics, observability
Most viewed
Install and configure Deno for web development with systemd and reverse proxy
hostingInstall and configure Caddy web server with automatic HTTPS and reverse proxy
hostingInstall and configure Ollama for local AI models on Linux servers
devopsInstall and configure Uvicorn ASGI server with systemd and reverse proxy for FastAPI applications
hostingInstall and configure Uptime Kuma for website monitoring with SSL and email alerts
monitoringRecently published
Setup Node.js error tracking with Sentry for production monitoring and debugging
monitoringImplement Node.js application monitoring with Prometheus metrics and Grafana dashboards
monitoringImplement OSPF multi-area design with FRRouting and advanced routing policies
networkingConfigure Istio security policies with external authorization services integration
securityImplement Docker network security with custom bridge networks and container isolation
securitySet up Fail2ban with Cloudflare API integration for automatic IP blocking and enhanced security
Configure Fail2ban to automatically add malicious IPs to Cloudflare's firewall rules for enhanced protection. This tutorial covers installation, custom filters, API integration, and monitoring for comprehensive security automation across your infrastructure.
Configure NGINX SSL certificate automation with Certbot and renewal monitoring
Set up automated SSL certificate provisioning and renewal for NGINX using Let's Encrypt Certbot with systemd timers, monitoring, and failure alerting for production environments.
Integrate ModSecurity 3 with SOAR platforms for automated incident response and threat detection
Set up ModSecurity 3 with structured logging, webhook notifications, and API integrations to automatically feed security events into SOAR platforms for real-time threat detection and incident response workflows.
Monitor Node.js applications with Prometheus and Grafana for comprehensive performance metrics
Set up comprehensive Node.js application monitoring with Prometheus metrics collection and Grafana dashboards. Configure alerting rules for performance issues, memory usage, and error tracking in production environments.
Set up centralized security monitoring with ClamAV 1.4 and Elasticsearch 8
Build a comprehensive security monitoring infrastructure with ClamAV antivirus scanning, Elasticsearch log storage, and automated threat detection. This setup provides real-time malware scanning with centralized log aggregation for enterprise security compliance.
Configure backup monitoring with Prometheus and Grafana for automated infrastructure oversight
Set up comprehensive backup monitoring using Prometheus metrics collection and Grafana dashboards. This tutorial covers backup exporter configuration, custom metrics creation, and automated alerting for backup failures and performance issues.
Configure Prometheus alerting rules for cgroup metrics monitoring and container resource alerts
Set up comprehensive Prometheus alerting rules for monitoring cgroup resource usage with automated threshold alerts for CPU, memory, and I/O limits. Configure Alertmanager notifications for container resource exhaustion and system health monitoring.
Set up HAProxy high availability with keepalived clustering for automatic failover
Configure HAProxy load balancer with keepalived VRRP clustering for automatic failover. Set up virtual IP failover, health checks, and monitor the cluster for production high availability.
Integrate Apache Tomcat 11 with Prometheus and Grafana monitoring for comprehensive performance tracking
Set up comprehensive monitoring for Apache Tomcat 11 using JMX Prometheus Java agent, configure Prometheus to scrape metrics, create detailed Grafana dashboards, and implement alerting rules for performance tracking and health monitoring.
Implement OpenLiteSpeed WAF and DDoS protection with ModSecurity 3 and rate limiting
Set up comprehensive web application security for OpenLiteSpeed with ModSecurity 3 web application firewall, OWASP Core Rule Set for threat protection, and advanced rate limiting to defend against DDoS attacks and malicious traffic.
Monitor MySQL performance with Prometheus and Grafana dashboards
Set up comprehensive MySQL monitoring with Prometheus MySQL Exporter and Grafana dashboards. Track query performance, connections, replication lag, and resource usage with automated alerts for production database health.
Set up Linux storage monitoring with smartmontools and automated health alerts
Monitor disk health and prevent storage failures with S.M.A.R.T monitoring, automated email alerts, and custom dashboards. Covers smartd daemon configuration, health checks, and integration with monitoring systems.
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