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
10,978

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

linux
8,462

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

monitoring
6,885

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

hosting
6,062

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

databases
5,542

Recently published

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

linux
6 hours ago

Check disk space usage on Linux with df and du commands

linux
2 days ago

Find and kill processes using a specific port on Linux

linux
6 days ago

Fix PostgreSQL FATAL sorry, too many clients already

linux
2 weeks ago

Configure Istio multi-cluster disaster recovery and automated failover

devops
2 weeks ago
"ssl" × Clear all
devops Intermediate

Deploy Podman containers with Kubernetes YAML manifests and kubectl integration

Learn how to deploy and manage Podman containers using Kubernetes YAML manifests with kubectl integration. This tutorial covers systemd user services, YAML generation, pod networking, and volume management.

25 min 4 distros 1,287 views
monitoring Intermediate

Set up Prometheus Blackbox Exporter for uptime monitoring with SSL and alerting

Configure Prometheus Blackbox Exporter to monitor website availability, SSL certificate expiry, and HTTP response times with comprehensive Grafana dashboards and alert rules.

45 min 4 distros 1,368 views
devops Intermediate

Configure Traefik with Consul service discovery for dynamic load balancing

Set up Traefik 3.1 reverse proxy with Consul service discovery to automatically route traffic to services without manual configuration. Learn dynamic routing, SSL automation, health checks, and monitoring setup for production environments.

25 min 4 distros 1,216 views
hosting Intermediate

Configure nginx reverse proxy for Podman containers with SSL and load balancing

Set up nginx as a reverse proxy for Podman containers with SSL termination, health checks, and load balancing. Includes automated SSL certificate management with Let's Encrypt and container integration.

45 min 4 distros 1,706 views
monitoring Intermediate

Set up Docker Compose monitoring stack with Prometheus and Grafana for AI model performance tracking

Deploy a complete monitoring stack using Docker Compose with Prometheus for metrics collection and Grafana for visualization, specifically configured to track AI model performance metrics like inference latency, throughput, and resource utilization.

45 min 4 distros 1,476 views
devops Intermediate

Configure Kafka Schema Registry with Avro serialization for data processing

Set up Confluent Schema Registry with Apache Kafka to manage Avro schemas for data serialization. Configure producers and consumers with schema evolution and compatibility rules for production data processing workflows.

25 min 4 distros 1,209 views
monitoring Intermediate

Set up NGINX monitoring with Prometheus and Grafana for web server observability

Monitor your NGINX web server performance and health with Prometheus metrics collection and Grafana dashboards. Set up comprehensive observability including request rates, response times, error tracking, and automated alerting for production web servers.

45 min 4 distros 1,367 views
networking Intermediate

Configure HAProxy multi-site SSL termination with SNI for secure load balancing

Set up HAProxy to handle SSL certificates for multiple domains using Server Name Indication (SNI), enabling secure HTTPS traffic termination and load balancing across different backend services.

45 min 4 distros 1,869 views
security Advanced

Configure OpenVPN LDAP authentication and user management with Active Directory integration

Set up OpenVPN with LDAP authentication to integrate with Active Directory for centralized user management. Configure group-based access control and combine certificate-based authentication with LDAP for enterprise security.

45 min 4 distros 1,389 views
networking Intermediate

Configure HAProxy SSL termination with Let's Encrypt and security headers

Set up HAProxy 2.8 with SSL termination, automatic Let's Encrypt certificates, and security headers for high-performance load balancing with HTTPS offloading and automated certificate renewal.

35 min 4 distros 1,293 views
hosting Advanced

Configure Apache HTTP Server clustering with mod_cluster and JBoss EAP for enterprise load balancing

Set up Apache HTTP Server with mod_cluster module to create an intelligent load balancing cluster with JBoss EAP application servers, featuring automatic node discovery, session clustering, and health monitoring.

45 min 6 distros 1,482 views
linux Advanced

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

Resolve apt update errors when repositories lose Release files due to expired GPG keys, discontinued repos, or corrupted package manager state. Includes diagnostics, recovery methods, and prevention strategies.

25 min 7 distros 8,462 views

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