Integrated DNS Package for Isolated Network Name Resolution
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Solution Overview
Problem
Existing DNS systems fail to provide domain name resolution services within confined networks when partitioned or isolated from the global Internet, leading to access failures due to reliance on external DNS servers.
Innovation Solution
A DNS hardware package with integrated DNS hierarchy databases and a recursive name server that prioritizes internal DNS servers for resolution, including caching and DNSSEC validation, to ensure domain name resolution within the network.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If DNS queries are made to external DNS servers for domain name resolution, then domain name resolution can be performed, but the system becomes vulnerable to network partition and isolation
Solution Approach 1:
The patent combines multiple DNS server functions (root DNS server, TLD DNS server, and recursive DNS server) into a single integrated DNS package that can operate autonomously within a network. This merging eliminates the need to query external DNS servers, ensuring domain name resolution availability even when the network is partitioned or isolated from the global Internet.
Solution Approach 2:
The DNS package acts as an intermediary DNS resolution system within the network boundary. Instead of directly querying external DNS servers, the recursive DNS server in the package first queries internal root and TLD DNS servers, serving as a mediator that provides resolution services without requiring external network access.
2Reliability
If DNS queries traverse the hierarchical system to external servers, then domain name resolution is achieved, but transaction latency increases
Solution Approach 1:
By merging root DNS server, TLD DNS server, and recursive DNS server functions into a single DNS package located within the network, the patent eliminates the need for queries to traverse external network boundaries. All DNS resolution transactions occur locally, significantly reducing transaction latency while maintaining full domain name resolution capability.
3Ease of operation
If the network relies on external DNS servers, then domain name resolution can be performed, but the network becomes dependent on external infrastructure
Solution Approach 1:
The DNS package enables the network to serve its own DNS resolution needs autonomously. The recursive DNS server queries internal root and TLD DNS servers within the package, allowing the network to resolve domain names independently without relying on external DNS infrastructure. This self-service capability maintains ease of operation while achieving network independence.
Solution Approach 2:
The patent merges essential DNS infrastructure components (root server, TLD server, recursive server) into a self-contained package that operates independently within the network boundary, eliminating dependence on external DNS infrastructure while maintaining full domain name resolution service functionality.
Data Source
AI summary
A Domain Name System (“DNS”) package, a non-transitory computer-readable medium, and a method for providing domain name resolution services are disclosed. The system can include one or more built-in DNS hierarchy databases configured for deployment within a network, wherein the one or more built-in DNS hierarchy databases stores DNS records. The system can also include a recursive name server, wherein the recursive name server is configured to query the one or more built-in DNS hierarchy databases during domain name resolution, the recursive name server configured to select the one or more built-in DNS hierarchy databases based on a policy indicating a preference for the one or more built-in DNS hierarchy databases over a domain name server located outside of the network. Furthermore, the system can include a recursive name server database configured to store DNS records for the recursive name server.