The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 11, 2019
Filed:
Apr. 17, 2015
Soosan Int Co., Ltd, Seoul, KR;
Yong Hwan Lee, Seoul, KR;
Min Hyeok Park, Seoul, KR;
Soo Ro Kim, Seoul, KR;
Gyu Ri Kim, Seoul, KR;
Jun Hyeok Yim, Seoul, KR;
Kyoung Tae Kang, Seoul, KR;
Soosan Int Co., LTD, Seoul, KR;
Abstract
A network security system according to an embodiment may include: a DNS blocking server that is connected to network equipment to which a client terminal is connected and mirrors a DNS query packet going through the network equipment, and that generates and transmits a fake DNS response packet to the client terminal if a DNS query domain address of the DNS query packet is a domain address to be managed; and a proxy server that monitors a request packet from the client terminal generated using the fake DNS response packet.