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
devopsImplement Consul Connect mTLS with Vault PKI backend for secure service mesh communication
Set up mutual TLS authentication for Consul Connect using HashiCorp Vault's PKI backend to secure service-to-service communication with automatic certificate management and rotation.
Configure Podman secrets management with HashiCorp Vault integration
Set up secure container secrets management by integrating Podman with HashiCorp Vault. Configure dynamic secret injection, automated rotation, and production-ready monitoring for containerized applications.
Implement Ansible AWX Tower for enterprise automation workflows with RBAC and inventory management
Deploy Ansible AWX with Docker Compose for centralized automation management. Configure enterprise RBAC, dynamic inventory sources, and workflow templates for scalable infrastructure orchestration across multiple environments.
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.
Configure Kubernetes secrets management with Sealed Secrets for secure Helm values
Learn to implement Sealed Secrets controller for encrypting Kubernetes secrets in Git repositories, enabling secure GitOps workflows with encrypted Helm values and automated secret management.
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.
Configure Vault dynamic secrets for databases with PostgreSQL and MySQL integration
Set up HashiCorp Vault's database secrets engine to automatically generate short-lived credentials for PostgreSQL and MySQL databases, improving security by eliminating static passwords and enabling automated credential rotation.
Set up Vault as a PKI certificate authority with SSL automation and intermediate CA
Build a production-grade PKI infrastructure using HashiCorp Vault with root and intermediate certificate authorities. Enable automated SSL certificate generation and renewal for your applications with RBAC policies.
Configure Vault auto-unseal with AWS KMS for high availability secrets management
Set up HashiCorp Vault with AWS KMS auto-unseal to eliminate manual unsealing processes and enable high availability deployments with automatic recovery.
Configure Ansible dynamic inventory for AWS, Azure, and GCP with automated discovery
Set up Ansible dynamic inventory plugins for AWS EC2, Azure, and Google Cloud Platform to automatically discover and manage cloud resources. This tutorial covers authentication, filtering, and unified inventory management across multiple cloud providers.
Implement Kubernetes Pod Security Standards and admission controllers for policy enforcement
Configure Pod Security Standards with baseline and restricted profiles, deploy OPA Gatekeeper admission controller with custom policies, and implement ValidatingAdmissionWebhooks for comprehensive security enforcement in production Kubernetes clusters.
Integrate Nexus Repository with Kubernetes and Docker registry authentication
Set up Nexus Repository Manager as a private Docker registry integrated with Kubernetes clusters, configure secure authentication and authorization, and enable automated container image deployment with RBAC controls.
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