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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Install and configure Deno for web development with systemd and reverse proxy

hosting
10,985

Fix apt update E: Repository no longer has a Release file

linux
8,575

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

monitoring
6,891

Install and configure Caddy web server with automatic HTTPS and reverse proxy

hosting
6,076

Install and configure TimescaleDB with PostgreSQL for high-performance time-series data

databases
5,564

Recently published

Fix apt update E: Repository no longer has a Release file

linux
1 day ago

Check disk space usage on Linux with df and du commands

linux
3 days ago

Find and kill processes using a specific port on Linux

linux
1 week ago

Fix PostgreSQL FATAL sorry, too many clients already

linux
2 weeks ago

Configure Istio multi-cluster disaster recovery and automated failover

devops
3 weeks ago
"ssl" × Clear all
linux Intermediate

Configure Linux system firewall with nftables and security hardening

Learn how to configure nftables firewall with advanced security rules, rate limiting, and fail2ban integration. This tutorial covers migration from iptables, logging configuration, and production-grade security hardening for modern Linux systems.

45 min 6 distros 2,714 views
hosting Intermediate

Install and configure Lighttpd web server with SSL and FastCGI for lightweight hosting

Set up Lighttpd web server with SSL certificates from Let's Encrypt and FastCGI support for PHP applications. Configure virtual hosts, optimize performance, and implement security hardening for production hosting.

25 min 6 distros 1,965 views
hosting Beginner

Install and configure Caddy web server with automatic HTTPS and reverse proxy

Set up Caddy, a modern web server with automatic HTTPS certificates from Let's Encrypt, zero-config HTTP/2, and built-in reverse proxy capabilities for production applications.

25 min 6 distros 6,076 views
hosting Intermediate

Configure Apache web server with virtual hosts and SSL certificates

Set up Apache HTTP server with multiple virtual hosts, secure SSL certificates from Let's Encrypt, and implement security hardening for production workloads.

45 min 6 distros 3,050 views
devops Intermediate

Integrate SonarQube with Kubernetes and Helm charts for automated code quality scanning

Deploy SonarQube on Kubernetes using Helm charts with PostgreSQL database, configure automated code scanning workflows, and implement persistent storage for comprehensive code quality analysis in your CI/CD pipeline.

45 min 4 distros 2,125 views
databases Advanced

Configure Elasticsearch 8 cluster with multiple nodes for high availability and scalability

Set up a production-ready Elasticsearch 8 cluster with dedicated master, data, and coordinating nodes for high availability, fault tolerance, and horizontal scalability across multiple servers.

45 min 4 distros 2,180 views
hosting Intermediate

Setup nginx reverse proxy with SSL certificates and security hardening

Configure nginx as a secure reverse proxy with Let's Encrypt SSL certificates, security headers, and DDoS protection. Learn to proxy backend applications, implement rate limiting, and harden your web server configuration.

35 min 4 distros 1,992 views
monitoring Intermediate

Monitor Docker containers with Prometheus and Grafana using cAdvisor for comprehensive metrics collection

Set up comprehensive Docker container monitoring with Prometheus, Grafana, and cAdvisor to track resource usage, performance metrics, and container health in production environments.

45 min 4 distros 2,316 views
devops Advanced

Integrate SonarQube with Kubernetes security scanning workflows for continuous code quality analysis

Set up SonarQube scanner in Kubernetes pods with admission controllers for automated security scanning. Configure CI/CD pipeline integration and security reporting for continuous code quality analysis in containerized environments.

45 min 4 distros 1,796 views
devops Intermediate

Set up SonarQube branch analysis with pull request decoration for enhanced code quality workflows

Configure SonarQube Developer Edition with branch analysis capabilities and pull request decoration for GitHub and GitLab. Implement automated code quality checks in CI/CD pipelines with comprehensive branch coverage and merge request feedback.

45 min 4 distros 2,756 views
devops Intermediate

Configure Kafka Connect for database integration with JDBC connectors and CDC

Set up Kafka Connect with JDBC connectors for real-time database integration and configure Debezium for change data capture. Monitor connector performance and troubleshoot common integration issues.

45 min 4 distros 2,237 views
monitoring Advanced

Set up Zabbix 7 high availability cluster with PostgreSQL replication and automated failover

Build a production-grade Zabbix 7 high availability cluster with PostgreSQL streaming replication, HAProxy load balancing, and automated failover capabilities for enterprise monitoring.

90 min 4 distros 2,822 views

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