Blog

Technical guides, experience feedback and news on sovereign IT infrastructure

AI

Local AI in production: our conclusions on local LLMs

As of 20 May 2026, after 6 local LLMs (Ollama) put against two real business tasks and fact-checked: the format holds, factual reliability collapses. The SEO cost of a wrong fact, and the real dividing line — where does the error land?

Richard Demongeot
May 20, 2026
MariaDB

MariaDB audit peer-reviewed by Signal18: commercial model and worked examples

Fixed-price (≤20% overrun absorbed by RDEM) or T&M, a concrete definition of a day of audit, Signal18 peer review at variable proportion, and end-to-end worked examples — including €4,800 alone, €6,300 with Signal18.

Richard Demongeot
May 19, 2026
Infrastructure

Our Multi-Datacenter Infrastructure: 3 Interconnected Equinix Sites

3 Equinix datacenters (PA3, PA4, PA5) linked by dark fibers, 5 transit providers and 4 Internet exchange points for maximum resilience.

Richard Demongeot
February 5, 2026
Infrastructure

Our DNS Infrastructure: Multi-ASN Redundancy and Sovereignty

Discover how RDEM Systems designed a resilient DNS infrastructure with 4 servers spread across 4 distinct ASNs, in compliance with RFC 2182 and APNIC 2025 recommendations.

Richard Demongeot
February 5, 2026
Legal

NDA and IT Provider: Why the Confidentiality Agreement Is Not Enough

The NDA is necessary but not sufficient. Discover the 5 pillars that truly protect your data at an IT provider: encryption, sovereignty, subcontractors, isolation and traceability.

Richard Demongeot
February 16, 2026
Security

NTP Desynchronization: Threats to IT Infrastructure

Inconsistent logs, broken Kerberos, unusable 2FA, corrupted backups: why NTP synchronization is critical in virtualized environments.

Richard Demongeot
February 16, 2026

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