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2018 | OriginalPaper | Chapter

DNS Lame Delegations: A Case-Study of Public Reverse DNS Records in the African Region

Authors : Amreesh Phokeer, Alain Aina, David Johnson

Published in: e-Infrastructure and e-Services for Developing Countries

Publisher: Springer International Publishing

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Abstract

The DNS, as one of the oldest components of the modern Internet, has been studied multiple times. It is a known fact that operational issues such as mis-configured name servers affect the responsiveness of the DNS service which could lead to delayed responses or failed queries. One of such misconfigurations is lame delegation and this article explains how it can be detected and also provides guidance to the African Internet community as to whether a policy lame reverse DNS should be enforced. It also gives an overview of the degree of lameness of the AFRINIC reverse domains where it was found that 45% of all reverse domains are lame.

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Footnotes
1
The African Network Information Centre (AFRINIC) is the Regional Internet Registry (RIR) for Africa and the Indian Ocean. AFRINIC allocates Internet number resources i.e. IPv4, IPv6 and Autonomous System (AS) numbers to network operators in its constituency.
 
4
An authoritative name server holds the actual records (A, AAAA, CNAME, PTR, etc.) of the zones, as opposed to a recursive server or resolver that needs to query an authoritative name server to resolve a domain/address.
 
11
AA means Authoritative Answer.
 
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Pappas, V., et al.: Impact of configuration errors on DNS robustness. IEEE J. Sel. Areas Commun. 27(3), 275–290 (2009)CrossRef
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Phokeer, A., et al.: A survey of anti-spam mechanisms from an RIR’s perspective. In: Proceedings - IST-Africa (2016)
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Trostle, J.B., et al.: Protecting against DNS cache poisoning attacks. In: 2010 6th IEEE Workshop on Secure Network Protocols, NPSec 2010, pp. 25–30 (2010)
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Wei, M.L., Lu, Y.C., Zhen, M.L.: Alleviating the impact of DNS DDoS attacks. In: NSWCTC 2010 - The 2nd International Conference on Networks Security, Wireless Communications and Trusted Computing, vol. 1, pp. 240–243 (2010)
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Metadata
Title
DNS Lame Delegations: A Case-Study of Public Reverse DNS Records in the African Region
Authors
Amreesh Phokeer
Alain Aina
David Johnson
Copyright Year
2018
Book
e-Infrastructure and e-Services for Developing Countries

Print ISBN: 978-3-319-66741-6

Electronic ISBN: 978-3-319-66742-3

Copyright Year: 2018

DOI
https://doi.org/10.1007/978-3-319-66742-3_22

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