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
- --port
-
The source and destination port to consider. Default is looking at packets from and to ports 53 and 5300.
- --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
PowerDNS.COM BV