The Open IT Stack
Systems · Cybersecurity · Cloud · DevOps · Networking · AI
Technical knowledge architecture, enterprise design, and operational playbooks.
Built for systems administrators, security engineers, and cloud architects.
Technical Domains
Select a domain to access hands-on manuals, reference architectures, and step-by-step courses.
DevOps & CI/CD
Kubernetes, Docker, Terraform, Ansible, GitOps, and automated pipeline orchestration.
Explore DevOps →Linux Administration
Kernel tuning, systemd, eBPF, BASH scripting, ZFS/Btrfs storage, and server hardening.
Explore Linux →Windows & Active Directory
AD DS, Kerberos, PowerShell automation, GPO, Hyper-V, WDAC, and replication troubleshooting.
Explore Windows →Red Team & Pentesting
Active Directory exploitation, web pentesting, privilege escalation, Wi-Fi security, and C2 frameworks.
Explore Red Team →Blue Team & DFIR
Incident response, SIEM rule engineering (KQL/Sigma), threat hunting, EDR operations, and forensics.
Explore Blue Team →Cloud Architecture
AWS/Azure/GCP architectural patterns, Entra ID, Serverless computing, and FinOps optimization.
Explore Cloud →Networking & SD-WAN
BGP routing protocols, Wi-Fi 6E engineering, Wireshark packet analysis, SD-WAN, and SASE.
Explore Networking →Software Engineering
Microservices patterns, Clean Architecture, DDD, REST/gRPC standards, async Python, and Rust.
Explore Development →Database Administration
PostgreSQL performance tuning, MongoDB sharded clusters, Redis caching, and ClickHouse analytics.
Explore Databases →AI Engineering & MLOps
Local LLM deployment, RAG architectures, Vector DB operations, LangGraph agents, and MLOps pipelines.
Explore AI/ML →SRE & Observability
SLIs/SLOs, error budgets, OpenTelemetry distributed tracing, Prometheus metrics, and Grafana dashboards.
Explore SRE →Zero Trust & Security
Keycloak IAM, HashiCorp Vault secrets engine, OAuth2/OIDC specifications, and enterprise PKI.
Explore Zero Trust →