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1. (WO2018059480) METHOD, DEVICE, AND SYSTEM FOR DEFENDING AGAINST NETWORK ATTACK

Pub. No.:    WO/2018/059480    International Application No.:    PCT/CN2017/103934
Publication Date: Fri Apr 06 01:59:59 CEST 2018 International Filing Date: Fri Sep 29 01:59:59 CEST 2017
IPC: H04L 29/06
Applicants: TENCENT TECHNOLOGY (SHENZHEN) COMPANY LIMITED
腾讯科技(深圳)有限公司
Inventors: ZHANG, Haohao
张浩浩
Title: METHOD, DEVICE, AND SYSTEM FOR DEFENDING AGAINST NETWORK ATTACK
Abstract:
The application provides a method, device, and system for defending against a network attack. In the application, the method comprises: retrieving, by a tapping detection apparatus, an access request transmitted to a target server, and redirecting, by the tapping detection apparatus, and to a target verification server, information of a client transmitting the access request, for the verification server to verify a verification code of the client; and when the target verification server determines that verification of the client is successful, forwarding, to the target server, the access request transmitted by the client. The method according to the invention can defend against a malicious attack, such as a DDoS attack, to a serving system, without deploying, on respective servers in the serving system, mechanisms for verifying a verification code, facilitating complexity reduction of defense against a DDoS attack.