Resource-oriented hierarchical name resolution system

A name resolution, resource-oriented technology, applied in the field of network resources, can solve problems such as incompleteness and efficiency, dependence on manual configuration, system reliability and security risks, and achieve low resolution delay and high scalability.

Active Publication Date: 2011-09-14
BEIJING JIAOTONG UNIV
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Problems solved by technology

On May 19, 2009, the domestic DNS server was attacked by a large-scale DDoS, causing most of the telecommunications network to be paralyzed
[0006] The insecurity of DNS is mainly caused by the system design of DNS. First, DNS relies too much on the top-level domain name server. The top-level domain name server plays a more important role in domain name resolution than ordinary domain name servers. Once the top-level server If a fault occurs, it will have a great impact on the system; secondly, DNS is highly dependent on manual configuration, and manual configuration errors will bring huge hidden dangers to the reliability and security of the system
[0007] Second, the host-oriented parsing mode needs to transition to the resource-oriented parsing...

Method used

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Embodiment

[0041] refer to figure 1 , which shows a schematic structural diagram of a resource-oriented hierarchical name resolution system according to the present invention, and the system specifically includes:

[0042]Mapping from service ID to access ID, mapping from service ID to parser, mapping server and parser, wherein the mapping server is used to form a logical ring topology according to the chord algorithm of one of the DHTs, and complete the mapping from service ID to parser Store, update, delete, forward and resolve operations of entries;

[0043] The resolver is used to complete the storage, update, deletion, forwarding and resolution operations of the mapping entries from the service identifier to the access identifier.

[0044] The current domestic and foreign projects such as the integrated network are based on solving the future Internet architecture design, and the core idea is focused on the ID / Locator identity address separation mechanism. For these newly proposed...

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Abstract

The invention provides a resource-oriented hierarchical name resolution system, which effectively overcomes the shortcoming of single resolution way for resolving a uniform resource locator (URL) to an Internet protocol (IP) address by the conventional domain name resolution system and perfectly provides support for service combination and service or data transfer. In addition, a local entry updating mechanism of a service identification mapping system (SIDMS) solves the potential problems of mapping entry expansion of a name system; and a multilayer cache mechanism ensures the low resolutiondelay of the name system. The local mapping entry updating mechanism and the multilayer cache mechanism fully present the high expansibility of the SIDMS. The two big problems of uninterrupted services in dynamic and mobile network environments and the fusion of network middleware of the current Internet can be well solved by the SIDMS.

Description

technical field [0001] The invention relates to the technical field of network resources, in particular to a resource-oriented hierarchical name resolution system. Background technique [0002] DNS is the most widely used naming system in the Internet today. It provides Internet users with the most basic domain name resolution service, which is suitable for various applications ranging from load balancing to service discovery. Essentially, DNS is a globally distributed database. There are about 400 million domain name entries stored in it, and there are about several billion records in all storage. The average query delay of current DNS is less than 100ms, and the average number of queries is 1.3 times, which provides a satisfactory system resolution performance at the user level. At the same time, in addition to HTTP and SMTP applications, emerging applications expect to use the ubiquitous DNS infrastructure, such as anti-spam systems will use special DNS records, PKI (p...

Claims

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Application Information

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IPC IPC(8): H04L29/12
Inventor 杨冬黄道超张宏科宋飞董平苏伟孙亮
Owner BEIJING JIAOTONG UNIV
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