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
10,622

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

monitoring
6,476

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

linux
5,969

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

hosting
5,550

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

databases
5,081

Recently published

Set up automated MariaDB Galera cluster backups with compression

databases
1 week ago

Configure MariaDB ColumnStore for high-performance analytics workloads

databases
1 week ago

Implement Kibana 8 custom threat hunting dashboards for security incident response

monitoring
2 weeks ago

Configure Logstash 8 security pipelines with threat intelligence enrichment

monitoring
3 weeks ago

Configure Ansible Vault integration with HashiCorp Vault for secrets management

devops
3 weeks ago
"validation" × Clear all
monitoring Intermediate

Configure Prometheus Blackbox Exporter for endpoint monitoring with SSL and alerting

Set up Prometheus Blackbox Exporter to monitor HTTP, HTTPS, DNS, TCP, and ICMP endpoints with SSL certificate validation and automated alerting for comprehensive uptime monitoring.

25 min 4 distros 1,034 views
devops Intermediate

Configure Ansible Vault for secret management and encryption with playbook automation

Set up Ansible Vault to encrypt sensitive data like passwords, API keys, and certificates in your playbooks. Learn to create encrypted variables, manage vault passwords, and integrate secure secret handling into automated deployments.

25 min 4 distros 1,009 views
devops Intermediate

Configure Apache Airflow DAG version control with Git and CI/CD pipelines

Set up Git-based version control for Apache Airflow DAGs with automated CI/CD pipelines for testing and deployment. Implement DAG synchronization, validation workflows, and production-ready deployment strategies.

45 min 4 distros 1,176 views
security Intermediate

Configure SSL certificates and security hardening for Nexus Repository Manager

Secure your Nexus Repository Manager with SSL/TLS certificates, enforce HTTPS connections, and implement comprehensive security hardening including authentication controls, access policies, and audit logging for production environments.

45 min 4 distros 1,617 views
security Intermediate

Configure Keycloak custom themes and branding with SSL integration and production deployment

Set up custom Keycloak themes with your organization's branding, implement SSL certificates, and deploy to production with hot reload development workflow and performance optimization.

45 min 4 distros 1,073 views
security Advanced

Setup Keycloak SAML integration for enterprise single sign-on with identity providers

Configure Keycloak as a SAML identity provider for enterprise SSO, integrate with external identity providers, and implement secure SAML service provider connections with attribute mapping.

45 min 4 distros 1,359 views
security Intermediate

Configure Keycloak OAuth2 integration with web applications using OIDC and JWT tokens

Set up Keycloak as an OAuth2 identity provider with OIDC authentication flows. Configure client applications, implement JWT token validation, and secure NGINX reverse proxy with lua-resty-openidc for production web applications.

45 min 4 distros 1,174 views
devops Intermediate

Deploy applications to Kubernetes with Helm charts and production best practices

Learn how to create production-ready Helm charts for Kubernetes deployments with proper templating, values management, security configurations, and environment-specific customizations for scalable application orchestration.

45 min 4 distros 1,102 views
monitoring Intermediate

Set up Prometheus Alertmanager webhook notifications for Loki log alerts with Grafana integration

Configure Prometheus Alertmanager to send webhook notifications for Loki log-based alerts with proper routing, templating, and Grafana dashboard integration for comprehensive monitoring.

45 min 4 distros 1,031 views
security Intermediate

Implement two-factor authentication for SSH with Google Authenticator and TOTP

Secure your SSH connections by adding TOTP-based two-factor authentication using Google Authenticator and PAM modules for an additional layer of protection beyond passwords and keys.

25 min 4 distros 1,149 views
devops Advanced

Integrate HashiCorp Vault with Kubernetes secrets management for secure container orchestration

Configure HashiCorp Vault integration with Kubernetes using the Vault CSI driver and Secrets Operator for automated secret injection and synchronization. This setup enables secure secret management for containerized applications with dynamic secret rotation and policy-based access controls.

45 min 4 distros 1,061 views
networking Advanced

Configure HAProxy advanced routing with ACLs and maps for intelligent traffic management

Set up sophisticated traffic routing in HAProxy using Access Control Lists (ACLs) and map files for dynamic backend selection, SSL SNI routing, and intelligent request distribution based on headers, paths, and custom conditions.

45 min 4 distros 1,819 views

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