… Our measurements and log files on the F root servers allow us to identify many types of …
types of misconfiguration of DNS zone data, failures to follow the DNS protocol, and denial of …

… these techniques by measuring the only root server (“B”) not widely distributed using anycast.
Our measurements establish the presence of several DNS proxies and a DNS root mirror. …

… of mainstream DNS implementations, we find that less-latent root servers are generally
preferred thus deploying root server instances increase their possibilities to absorb DNS root …

… on the root resolution data obtained by active measurement. Our detection results show that
root zone file … 1, we collect root-side multivariate data through active measurement, including …

… for measurement of the reachability of DNS servers and the method of measurement with
this … through M correspond to the root DNS servers from a.root-servers.net to m.root-servers.net. …

… The performance of a DNS server is measured in terms of • Query Response Time (QRT),
the time difference from a query being made till receiving the reply. It includes network latency …

… to each of the thirteen root servers. Same as above, we launched the measurement over
300 times in two days continuously and for each root server we extracted the median value as …

… about DNS root server system, unauthorized root server instances, and nation-scale DNS …
Having identified the factors that affect root server selection, we conducted a measurement to …

… are IPv4 UDP DNS requests to each root server’s anycast IP address. Some of the F and K-root
… We also study the distance from root server instances to their clients. Fig. 4 plots, for each …

… Figure 2: DNS requests to root servers reflect our local BIND’s view of the servers. Here …
We produced strip charts for the 13 root servers (A to M) and the 11 gTLD servers, plotting the …