University of Twente Student Theses
Discovery and Quantification of Open DNS Resolvers on IPv6
Klein Nijenhuis, T.A.J. (2018) Discovery and Quantification of Open DNS Resolvers on IPv6.
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| Abstract: | Open DNS resolvers pose a significant threat to the global network infrastructure by answering recursive queries for hosts outside of their domains. They are commonly (mis)used in DDoS attacks. Techniques are available to discover open DNS resolvers on IPv4, this can be done by simply scanning the entire 32bit IPv4 address space. Because of the sparsely populated and vast IPv6 address space, scanning the entire 128bit IPv6 address space is not possible. Scanning the entire 128bit IPv6 address space with a powerful scanner takes around 7.5x10ˆ23 years. In this thesis we analyze methods to discover open DNS resolvers on IPv6. Active and passive measurements are studied to discover open DNS resolvers. Network traffic is analyzed to provide another source open DNS resolvers. We also analyze methods to quantify the performance of the open DNS resolvers. We try to estimate the bandwidth that the open DNS resolvers can achieve. And we quantify the performance of the open DNS resolvers based on their IP addresses. |
| Item Type: | Essay (Master) |
| Faculty: | EEMCS: Electrical Engineering, Mathematics and Computer Science |
| Subject: | 54 computer science |
| Programme: | Embedded Systems MSc (60331) |
| Link to this item: | https://purl.utwente.nl/essays/74575 |
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