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Implementing Anycast with MikroTik OSPF and AdGuard Home In high-availability infrastructure, DNS is a non-negotiable critical service. Conventional "Primary and Secondary" DNS configurations often suffer from client-side timeout issues. By leveraging Anycast via OSPF , we ensure that DNS failover is handled instantly by the router, providing a truly redundant and load-balanced experience. I. The Evolution: Before vs After Traditional Setup (Unicast) Clients have two separate IPs. If Server 1 dies, the client "hangs" waiting for a timeout before trying Server 2. This causes perceptible delays. [ CLIENT ] (DNS: .3 & .4) | (Waiting for .3...) v +----------------+ | ROUTER | +-------+--------+ | +----+----+ | | v v [ ADGUARD 1 ] [ ADGUARD 2 ] (.88.3) (.8...

​🏛️ CASE STUDY: The Lean Enterprise Micro-Datacenter ​1. Executive Summary ​This case study documents the design and deployment of a full-stack Infrastructure and Security Operations Center (SOC) on a resource-constrained Dell OptiPlex 3020 Micro (i3 CPU) . By leveraging LXC containerization, custom Python middleware, and Infrastructure as Code (IaC) , the project achieves enterprise-grade observability and zero-data-loss resilience while maintaining a remarkably low resource footprint (~10.5% average CPU usage). ​2. The Infrastructure Profile (The Constraints) ​ Hardware: Dell OptiPlex 3020 Micro (Intel Core i3, 16GB RAM, 500GB SSD). ​ Networking: MikroTik hEX r3 (Backbone). ​ Hypervisor: Proxmox VE 8.x. ​ Objective: Host 10+ critical services (Wazuh SIEM, n8n Orchestration, Zabbix Monitoring, Home Assistant, and custom AI UI) on a dual-core platform without compromising stability. ​3. The Logical Architecture (Sapper-Ranger Design) ​A. Network & Perime...

  The Strategic Architect: Bridging SWOT Analysis and Furikaeri (KPT) In the field of Technology Infrastructure, professionals are often divided into two camps: the Strategic Planners focused on high-level mapping, and the Operational Engineers focused on day-to-day execution. Many argue for a "keep it simple" approach, but in engineering, a simple plan lacking depth often results in significant Technical Debt. To build truly resilient systems, we must recognize that SWOT Analysis and Furikaeri (KPT) are not competing methodologies. They are two halves of the same coin—a unified feedback loop for Operational Excellence. 🏛️ SWOT Analysis: Pre-Deployment Intelligence SWOT (Strengths, Weaknesses, Opportunities, Threats) is far more than a corporate boardroom exercise. In an infrastructure context, it serves as a Strategic Audit before a single command is executed. Strengths & Weaknesses (Internal): This is the internal audit of the current stack. It’s about being hone...