This is dnsperf, a collection of DNS server performance testing tools.
For more information, see the dnsperf(1) and resperf(1) man pages.
dnsperf dnsperf is a DNS server performance testing tool. It is primarily intended for measuring the performance of authoritative DNS servers, but it can also be used... queryparse queryparse is a tool designed to extract DNS queries from pcap-formatted packet capture files and save them in a form suitable for input to Nominum's dnsperf or... resperf resperf is a companion tool to dnsperf. dnsperf was primarily designed for benchmarking authoritative servers, and it does not work well with caching servers...