METHOD, APPARATUS, MEDIUM AND DEVICE FOR REDUCING LENGTH OF DNS MESSAGE

WIPO Patent Application WO/2018/214853

A1

Disclosed are a method and apparatus for reducing the length of a DNS message. The method comprises: after receiving an access request, an authoritative DNS server constructing a DNS reply message; determining a source network area of the access request, and acquiring an information capacity of parsing information about a local DNS from a domain name in the access request to a domain name in the DNS reply message during a domain name parsing process of the source network area; and when it is determined that the length of the DNS reply message is greater than a difference value between the length of a transport protocol data packet and the information capacity of the parsing information, reducing the content of an authoritative field in the DNS reply message and correspondingly amending the content of an additional field, and sending the updated DNS rely message to a sender of the access request. Herein, by means of reducing an authoritative field and amending an additional field, the purpose of reducing the length of a DNS message is achieved, and the disadvantages caused by other methods for reducing the length of a DNS reply message in the prior art are not caused.

FU LIAJIA (CN)
WEI JINGMING (CN)
MIAO HUI (CN)

PCT/CN2018/087744

November 29, 2018

May 22, 2018

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GUIZHOU BAISHAN CLOUD TECH CO LTD (CN)

H04L29/12

CN107707683A	2018-02-16
CN102025794A	2011-04-20
CN106470252A	2017-03-01
CN106657432A	2017-05-10
US7970878B1	2011-06-28

BOXIN CHINA INTELLECTUAL PROPERTY (CN)

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