NAME

       dnswasher - 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.