NAME

       dnsscope - A PowerDNS nameserver debugging tool

SYNOPSIS

       dnsscope [OPTION]... INFILE

DESCRIPTION

       dnsscope takes an INFILE in PCAP format. It generates some simple statistics outputs these to STDOUT.

OPTIONS

       INFILE Path to a PCAP file.

       -h, --help
              Show the help.

       --rd   Only  process  packets  in INFILE with the RD (Recursion Desired) flag set. By default, we process
              all DNS packets in INFILE.

       --ipv4=<state>
              Process IPv4 packets. On by default, disable with --ipv4 false.

       --ipv6=<state>
              Process IPv6 packets. On by default, disable with --ipv6 false.

       -f,--filter-name=<domain>
              Only process packets within this domain

       --full-histogram <msec>
              Write out histogram with specified bin-size to 'full-histogram'

       --log-histogram
              Write out a log-histogram of response times to 'log-histogram'

       --no-servfail-stats
              Remove servfail responses from latency statistics

       --servfail-tree
              Figure out subtrees that generate servfails.

       --stats-dir <directory>
              Drop statistics files in this directory. Defaults to ./

       -l, --load-stats
              Emit per-second load statistics (questions, answers, outstanding).

       -w <file>, --write-failures <file>
              Write weird packets to a PCAP file at FILENAME.

       -v, --verbose
              Be more verbose.

SEE ALSO

       pcap(3PCAP), tcpdump(8)

AUTHOR

       PowerDNS.COM BV

COPYRIGHT

       2001-2019, PowerDNS.COM BV

4.2                                               Nov 29, 2019                                       DNSSCOPE(1)