NAME

       dnsreplay - A PowerDNS nameserver debugging tool

SYNOPSIS

       dnsreplay [OPTION]...  FILENAME ADDRESS [PORT]

DESCRIPTION

       This  program  takes  recorded  questions  and  answers  and replays them to the specified
       nameserver and reporting afterwards which percentage of answers  matched,  were  worse  or
       better.

       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

       FILENAME
              is expected to be an PCAP file.  The queries are send to the DNS  server  specified
              as ADDRESS and PORT.

       ADDRESS
              IPv4 or IPv6 address of the nameserver to replay FILENAME to.

       PORT   if omitted, 53 will be used.

       --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 MSEC
              Wait at least MSEC 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), dnswasher(1)

AUTHORS

       Joerg Jungermann (jj+debian At borkum.net).

                                          September 2012                             DNSREPLAY(1)