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
monitoringFix apt update E: Repository no longer has a Release file
linuxInstall and configure Caddy web server with automatic HTTPS and reverse proxy
hostingInstall and configure TimescaleDB with PostgreSQL for high-performance time-series data
databasesRecently published
Set up automated MariaDB Galera cluster backups with compression
databasesConfigure MariaDB ColumnStore for high-performance analytics workloads
databasesImplement Kibana 8 custom threat hunting dashboards for security incident response
monitoringConfigure Logstash 8 security pipelines with threat intelligence enrichment
monitoringConfigure Ansible Vault integration with HashiCorp Vault for secrets management
devopsConfigure 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.
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.
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.
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.
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.
Configure MariaDB 11.6 monitoring with Prometheus and Grafana dashboards
Set up comprehensive MariaDB monitoring with Prometheus mysqld_exporter metrics collection and Grafana visualization. Configure database performance alerts, query monitoring, and custom dashboards for production MariaDB instances.
Implement Linux file system encryption with LUKS and cryptsetup
Encrypt Linux file systems and partitions using LUKS (Linux Unified Key Setup) with cryptsetup tools. Configure encrypted storage, manage encryption keys, and implement backup procedures for production environments.
Configure Linux development environment with Docker and Docker Compose
Set up a complete Docker development environment with Docker Compose for containerized application development. Install Docker Engine, configure user permissions, and establish efficient development workflows.
Optimize ScyllaDB performance for time-series data workloads with advanced configuration tuning
Configure ScyllaDB with specialized optimizations for time-series workloads including partitioning strategies, compaction settings, and memory tuning. Set up monitoring with Prometheus and Grafana for production performance insights.
Implement Node.js application deployment with Git hooks and PM2 clustering
Set up automated Node.js application deployment using Git hooks for continuous integration, combined with PM2 clustering for high availability and load distribution across multiple CPU cores.
Configure ScyllaDB SSL encryption and authentication with certificate management and security hardening
Secure your ScyllaDB cluster with comprehensive SSL/TLS encryption for client connections and inter-node communication. This tutorial covers certificate generation, authentication setup, and production security hardening.
Configure SSH certificate authentication with CA signing for secure server access
Set up SSH certificate-based authentication using a Certificate Authority to eliminate individual key management. Create signed user certificates that provide secure, scalable access control for multiple servers and users.
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