dnsscope - A PowerDNS nameserver debugging tool

NAME  SYNOPSIS  DESCRIPTION  OPTIONS  SEE ALSO  AUTHOR  COPYRIGHT 

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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

2001-2023, PowerDNS.COM BV

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