NDLI: 100 Million DHT replies

Content Provider	IEEE Xplore Digital Library
Author	Zeilemaker, N. Pouwelse, J.
Copyright Year	2014
Description	Author affiliation: Delft Univ. of Technol., Delft, Netherlands (Zeilemaker, N.; Pouwelse, J.)
Abstract	Crawling a DHT allows researchers to monitor the behaviour of peers, determine their geographic location, etc. However, it has always been an error-prone process as it is not feasible to capture a full snapshot of the Mainline DHT in a timely manner. Therefore, researchers have developed approximation methods which can run on subsets of the DHT and extrapolate those in order to reason on the size and structure of the complete DHT. However, in this paper we introduce a new method of collecting information on peers connected to a DHT. We exploit the caches present at bootstrap servers to collect information on peers which are currently connected. Originally added to the bootstrap servers in order to be able to withstand more than 20,000 requests for peers each second, we now use the same mechanism as peers bootstrapping into the DHT to discover more than 20 Million peers in less than 2 hours. Using the bootstrap servers, we discover more than twice as many peers as BitMon, which crawls a subset of the DHT and then extrapolates. Moreover, in contrast to related work which often require highly customized/tuned BitTorrent clients, our script consists of 90 lines of Python code and runs on a simple laptop.
Starting Page	1
Ending Page	4
File Size	1278791
Page Count	4
File Format	PDF
ISBN	9781479962006
e-ISBN	9781479962013
DOI	10.1109/P2P.2014.6934318
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2014-09-08
Publisher Place	UK
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Servers Peer-to-peer computing Ports (Computers) Routing Conferences Europe Monitoring
Content Type	Text
Resource Type	Article

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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