NAME¶
dnsreplay - A PowerDNS nameserver debugging tool
SYNOPSIS¶
dnsreplay [options] filename ip-address
[port]
DESCRIPTION¶
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.
OPTIONS¶
- --help | -h
-
Show summary of options.
- --packet-limit num
-
Stop after replaying num packets. Default for num is 0, which
means no limit.
- --quiet flag
-
If flag is set to 1. dnsreplay will not be very noisy with its
output. This is the default.
- --recursive flag
-
If flag is set to 1. dnsreplay will only replay queries with
recursion desired flag set. This is the default.
- --speedup factor
-
Replay queries with this speedup factor. Default is 1.
- --timeout-msec time
-
Wait at least this many milliseconds for a reply. Default is 500.
BUGS¶
dnsreplay has no certain handling for timeouts. It handles around at most 65536
outstanding answers.
SEE ALSO¶
pcap(3PCAP),
tcpdump(8), dnswascher(8)
AUTHORS¶
This manpage was written by Joerg Jungermann (jj+debian At borkum.net) for the
Debian Project and the PowerDNS versatile DNS server.
