dnsreplay - A PowerDNS nameserver debugging tool
dnsreplay [options] filename ip-address [port]
This program takes recorded questions and answers and replays them to a
specified nameserver and reporting afterwards which percentage of
answers matched, were worse or better.
filename is expected to be an PCAP file. The queries are send to the
DNS server specified as ip-address and [port]. ip-address is
mandatory. If [port] is omitted, 53 will be used. dnsreplay compares
the answers and some other metrics with the actual ones with those
found in the dumpfile.
By default it only replay queries with recursion-desired flag set.
--help | -h
Show summary of options.
Stop after replaying num packets. Default for num is 0, which
means no limit.
If flag is set to 1. dnsreplay will not be very noisy with its
output. This is the default.
If flag is set to 1. dnsreplay will only replay queries with
recursion desired flag set. This is the default.
Replay queries with this speedup factor. Default is 1.
Wait at least this many milliseconds for a reply. Default is
dnsreplay has no certain handling for timeouts. It handles around at
most 65536 outstanding answers.
pcap(3PCAP), tcpdump(8), dnswascher(8)
This manpage was written by Joerg Jungermann (jj+debian At borkum.net)
for the Debian Project and the PowerDNS versatile DNS server.