Impact of configuration errors on DNS robustness
Proceedings of the 2004 conference on Applications, technologies, architectures, and protocols for computer communications
Is your caching resolver polluting the internet?
Proceedings of the ACM SIGCOMM workshop on Network troubleshooting: research, theory and operations practice meet malfunctioning reality
Scriptroute: a public internet measurement facility
USITS'03 Proceedings of the 4th conference on USENIX Symposium on Internet Technologies and Systems - Volume 4
Impact of configuration errors on DNS robustness
Proceedings of the 2004 conference on Applications, technologies, architectures, and protocols for computer communications
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Proceedings of the 2006 SIGCOMM workshop on Mining network data
Maintaining Strong Cache Consistency for the Domain Name System
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Proceedings of the 8th ACM SIGCOMM conference on Internet measurement
Impact of configuration errors on DNS robustness
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In this paper we present a troubleshooting tool designed to identify a number of DNS configuration errors. These errors range from commonly seen misconfigurations that are well known among DNS operators, such as lame delegations, to less known ones, such as cyclic zone dependencies. Left unnoticed, these misconfigurations can seriously affect the availability of the DNS infrastructure. Instead of explicitly enumerating all possible configuration errors, we first identify two essential properties that characterize a correct DNS configuration, and detect misconfigurations as violations of these properties. We also utilize multiple monitoring points to identify configuration errors that are difficult or impossible to pin down with a single vantage point. Furthermore, equipped with a comprehensive graphical user interface, our tool provides network operators with a tangible view of their DNS zones' configuration and the errors that may affect their availability.