REGIONAL HYBRID DNS

AN ARCHITECTURE FOR PERFORMANCE OPTIMIZATION IN LIMITED INTERNATIONAL CONNECTIVITY SCENARIOS

Authors

  • Luciano Zembruzki QI Faculdade e Escola Técnica

Abstract

Reliance on global DNS resolvers can lead to suboptimal performance in regions with limited international connectivity or high external bandwidth costs. This paper proposes a regional hybrid DNS architecture that combines intelligent local caching with fallback to global resolvers, optimized for scenarios where latency to external DNS servers exceeds 200ms. Through the analysis of DNS traffic logs from a regional academic network (48 hours, 476 measurements) and modeling based on queuing theory, we demonstrate that the proposed architecture can reduce average resolution latency by 67.9% and international traffic by 88.6% through cooperative caching. The model presents a technically viable solution for organizations facing external connectivity limitations, offering measurable performance improvements without compromising the robustness and security provided by global resolvers.

Published

2025-08-08

How to Cite

Zembruzki, L. (2025). REGIONAL HYBRID DNS: AN ARCHITECTURE FOR PERFORMANCE OPTIMIZATION IN LIMITED INTERNATIONAL CONNECTIVITY SCENARIOS. REFAQI - REVISTA DE GESTÃO EDUCAÇÃO E TECNOLOGIA, 18(1). Retrieved from https://refaqi.faqi.edu.br/index.php/refaqi/article/view/259