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Paper Abstract and Keywords
Presentation 2020-04-16 13:50
A Proposal of FQDN-based Whitelist Filter on DNS Cache Server against DNS Water Torture Attack
Keita Hasegawa, Daishi Kondo, Hideki Tode (OPU) NS2020-2
Abstract (in Japanese) (See Japanese page) 
(in English) A Distributed Denial of Service (DDoS) attack is a major social issue, and as one of the DDoS incidents, a Domain Name Service (DNS) DDoS attack against Dyn DNS, which is a DNS provider, caused the outage of several web services in 2016. This paper tackles a DNS water torture attack that was observed in the Dyn cyberattack. In the DNS water torture attack, attackers create a large number of unique Fully Qualified Domain Names (FQDNs) with random labels, send them to DNS cache servers and authoritative DNS servers, and collapse these servers. In order to reduce an impact of this attack, serverd on a countermeasures on DNS cache servers have been presented. However, one serious drawback of conventional countermeasures is that they cannot detect malicious DNS queries generated by an advanced DNS water torture attack, and therefore, the threat of this attack still remains. Against this disadvantage, we propose an FQDN-based whitelist filter that registers actually existed FQDNs and drops non-existed FQDNs that are created by the attackers. This whitelist can reduce a negative impact by falsely dropping legitimate DNS queries while eliminating malicious ones.
Keyword (in Japanese) (See Japanese page) 
(in English) DNS Water Torture Attack / DNS Cache Server / FQDN / Whitelist Filter / / / /  
Reference Info. IEICE Tech. Rep., vol. 120, no. 4, NS2020-2, pp. 7-12, April 2020.
Paper # NS2020-2 
Date of Issue 2020-04-09 (NS) 
ISSN Print edition: ISSN 0913-5685  Online edition: ISSN 2432-6380
All rights are reserved and no part of this publication may be reproduced or transmitted in any form or by any means, electronic or mechanical, including photocopy, recording, or any information storage and retrieval system, without permission in writing from the publisher. Notwithstanding, instructors are permitted to photocopy isolated articles for noncommercial classroom use without fee. (License No.: 10GA0019/12GB0052/13GB0056/17GB0034/18GB0034)
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Conference Information
Committee NS  
Conference Date 2020-04-16 - 2020-04-17 
Place (in Japanese) (See Japanese page) 
Place (in English) Online 
Topics (in Japanese) (See Japanese page) 
Topics (in English) Traffic, Network evaluation, Performance, Resource control and management, Traffic engineering, Network reliability and resilience, Network Intelligence and AI, etc. 
Paper Information
Registration To NS 
Conference Code 2020-04-NS 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) A Proposal of FQDN-based Whitelist Filter on DNS Cache Server against DNS Water Torture Attack 
Sub Title (in English)  
Keyword(1) DNS Water Torture Attack  
Keyword(2) DNS Cache Server  
Keyword(3) FQDN  
Keyword(4) Whitelist Filter  
1st Author's Name Keita Hasegawa  
1st Author's Affiliation Osaka Prefecture University (OPU)
2nd Author's Name Daishi Kondo  
2nd Author's Affiliation Osaka Prefecture University (OPU)
3rd Author's Name Hideki Tode  
3rd Author's Affiliation Osaka Prefecture University (OPU)
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Date Time 2020-04-16 13:50:00 
Presentation Time 25 
Registration for NS 
Paper # IEICE-NS2020-2 
Volume (vol) IEICE-120 
Number (no) no.4 
Page pp.7-12 
#Pages IEICE-6 
Date of Issue IEICE-NS-2020-04-09 

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