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 Uptime Kuma for website monitoring with SSL and email alerts
monitoringInstall and configure Caddy web server with automatic HTTPS and reverse proxy
hostingInstall and configure TimescaleDB with PostgreSQL for high-performance time-series data
databasesInstall and configure Ollama for local AI models on Linux servers
devopsRecently published
Configure HAProxy with Consul for dynamic service discovery and automatic backend updates
networkingImplement Istio multi-cluster canary deployments and traffic splitting
devopsImplement HAProxy WAF integration with ModSecurity 3 for advanced threat protection
securityConfigure PostgreSQL 17 SSL encryption and certificate-based authentication
databasesSet up HAProxy SSL termination with Let's Encrypt certificates
networkingMonitor Kubernetes network policies with Prometheus and Grafana for enhanced cluster security
Set up comprehensive monitoring for Kubernetes network policies using Prometheus and Grafana. Configure CNI metrics collection, create security dashboards, and implement alerting for policy violations and traffic anomalies.
Setup Tomcat SSL certificates with Let's Encrypt automation
Configure Apache Tomcat 11 with automated SSL certificate management using Let's Encrypt and Certbot. Set up HTTPS connector, Java keystore integration, and automatic certificate renewal for production environments.
Configure advanced SNMP alerting with Prometheus Alertmanager for network monitoring
Set up comprehensive SNMP monitoring with Prometheus exporters and create intelligent alerting rules in Alertmanager to proactively monitor network devices, interfaces, and performance metrics.
Implement Tomcat application monitoring with JMX and Grafana dashboards
Set up comprehensive Apache Tomcat 10 monitoring using JMX metrics, Prometheus JMX Exporter, and Grafana dashboards to track application performance, memory usage, and request metrics in real-time.
Implement Node.js application monitoring with Prometheus metrics collection and Grafana dashboards
Set up comprehensive Node.js application monitoring with Prometheus metrics collection, custom performance tracking, and Grafana dashboards for real-time observability and alerting.
Configure advanced nftables logging and monitoring for network security
Set up comprehensive nftables logging with structured syslog integration, Prometheus metrics collection, and ELK stack analysis. Configure Grafana dashboards for real-time firewall monitoring and automated alerting for security events.
Configure custom SNMP MIBs for vendor-specific monitoring with SNMP v2c and v3
Learn to install and configure custom vendor MIB files for specialized network device monitoring using both SNMP v2c and v3 protocols with authentication and encryption.
Setup Prometheus Blackbox Exporter for endpoint monitoring with SSL and alerting
Configure Prometheus Blackbox Exporter to monitor HTTP endpoints, SSL certificates, and DNS resolution with automated alerting rules and Grafana dashboards.
Configure InfluxDB 2.7 clustering for high availability with data replication and automated failover
Set up a production-ready InfluxDB Enterprise cluster with automatic data replication, failover mechanisms, and comprehensive monitoring using Grafana dashboards for time-series workloads.
Optimize Varnish 7 cache storage with memory tuning and persistence configuration
Configure Varnish 7 memory allocation and storage backends for optimal cache performance. Set up file-based persistence and tune memory parameters for high-traffic workloads with monitoring.
Set up Prometheus and Grafana monitoring stack with Docker Compose
Deploy a complete Prometheus and Grafana monitoring solution using Docker Compose with persistent storage, custom dashboards, and Alertmanager integration for production-ready observability.
Set up Telegraf custom plugins for application monitoring with Prometheus and InfluxDB integration
Learn to build custom Telegraf input plugins for application metrics collection, configure dual output to Prometheus and InfluxDB backends, and create comprehensive monitoring dashboards with Grafana for production observability.
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