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.

PowerDNS                                         September 2012                                     DNSREPLAY(8)