Domain name protecting system and method thereof

A domain name system and protection system technology, applied in transmission systems, digital transmission systems, electrical components, etc., can solve the problems of occupying server and network bandwidth resources, the effect of the processing method is not obvious, and other users cannot use the service normally, to achieve Ensure normal service and avoid malicious data attacks

Inactive Publication Date: 2010-01-13
HONG FU JIN PRECISION IND (SHENZHEN) CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This can prevent the attacker from invading the server to a certain extent, but when the attacker simulates the communication method of normal users and sends a large number of access and query requests to the domain name in a short peri

Method used

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  • Domain name protecting system and method thereof
  • Domain name protecting system and method thereof

Examples

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Example Embodiment

[0012] like figure 1 Shown is a hardware architecture diagram of a preferred embodiment of the domain name protection system of the present invention. The system includes a client terminal 100 and a management terminal 200 . The client 100 includes at least one DNS server 1 and at least one client host 3, and one DNS server 1 serves the client hosts 3 in the same network domain. The management end includes: a DNS server 2 . There is a communication connection between all DNS servers, and the client host 3 communicates with the DNS server 1 where it is located through the User Datagram Protocol (UserDatagram Protocol, UDP). The DNS server 1 of all clients communicates with the DNS server 2 of the management end. communication. A blacklist is stored in the DNS server 2, and the IP addresses of the illegal client hosts 3 are recorded in the blacklist. The client host 3 is used to send a domain name query datagram to the DNS server 1 where the client host 3 is located. The do...

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Abstract

A domain name protecting method comprises the following steps: a first domain name system server receives domain name inquiry datagram sent from an owned client terminal host computer; a second domain name system server judges whether the IP address of the client terminal host computer is in a black list which is stored in the second domain name system server to record the IP addresses of illegalclient terminal host computers; when the IP address of the client terminal host computer is not in the black list, the second domain name system server judges whether the communication between the client terminal host computer and the first domain name system server is abnormal, if so, the IP address of the client terminal host computer is added in the black list; if the IP address of the client terminal host computer is in the black list, the second domain name system server sends a false IP address to the first domain name system server; the first domain name system server returns the received false IP address to the client terminal host computer. In addition, the invention also provides a domain name protecting system.

Description

technical field [0001] The invention relates to a domain name protection system and method. Background technique [0002] With the rapid development of computer networks, various websites, FTP, mail servers, etc. emerge in an endless stream. In order to use them conveniently and record their addresses, people use the Domain Name System (Domain Name System, DNS), which is a distributed database for TCP / IP applications, which provides the link between host names and IP addresses. To convert information, replace the original IP address of the server with a text or number with a certain meaning. When accessing the server, the domain name is analyzed through the DNS server to obtain the real IP of the server, and then perform data exchange. Domain name service makes the original digital and complex network structure easier to remember and understand, and plays a huge role in the development of computer networks. [0003] But at the same time, the domain name service is also eas...

Claims

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Application Information

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IPC IPC(8): H04L29/06H04L12/58
Inventor 常小军
Owner HONG FU JIN PRECISION IND (SHENZHEN) CO LTD
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