<?xml version="1.0" encoding="UTF-8" standalone="no"?>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml"><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8" /><title>Chapter 25. Tools to analyse DNS traffic</title><link rel="stylesheet" href="docbook.css" type="text/css" /><meta name="generator" content="DocBook XSL Stylesheets V1.75.2" /><link rel="home" href="index.html" title="PowerDNS manual" /><link rel="up" href="index.html" title="PowerDNS manual" /><link rel="prev" href="tools.html" title="Chapter 24. Other tools included with PowerDNS" /><link rel="next" href="backends-detail.html" title="Appendix A. Backends in detail" /></head><body><div class="navheader"><table width="100%" summary="Navigation header"><tr><th colspan="3" align="center">Chapter 25. Tools to analyse DNS traffic</th></tr><tr><td width="20%" align="left"><a accesskey="p" href="tools.html">Prev</a> </td><th width="60%" align="center"> </th><td width="20%" align="right"> <a accesskey="n" href="backends-detail.html">Next</a></td></tr></table><hr /></div><div class="chapter" title="Chapter 25. Tools to analyse DNS traffic"><div class="titlepage"><div><div><h2 class="title"><a id="analysis"></a>Chapter 25. Tools to analyse DNS traffic</h2></div></div></div><p>
DNS is highly mission critical, it is therefore necessary to be able to study and compare DNS traffic. Since version 2.9.18, PowerDNS comes
with three tools to aid in analysis:
</p><div class="warning" title="Warning" style="margin-left: 0.5in; margin-right: 0.5in;"><table border="0" summary="Warning"><tr><td rowspan="2" align="center" valign="top" width="25"><img alt="[Warning]" src="warning.png" /></td><th align="left">Warning</th></tr><tr><td align="left" valign="top"><p>
As of 2.9.18 these tools are somewhat rough - they have no help messages for example. They do work though.
</p></td></tr></table></div><p>
</p><div class="variablelist"><dl><dt><span class="term">dnsreplay pcapfile [ipaddress] [port number]</span></dt><dd><p>
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.
</p></dd><dt><span class="term">dnswasher pcapfile output</span></dt><dd><p>
Anonymises recorded traffic, making sure it only contains DNS, and that the originating IP addresses of queries are stripped, which may
allow you to send traces to our company or mailing list without violating obligations towards your customers or privacy laws.
</p></dd><dt><span class="term">dnsscope pcapfile</span></dt><dd><p>
Calculates statistics without replaying traffic
</p></dd></dl></div><p>
</p></div><div class="navfooter"><hr /><table width="100%" summary="Navigation footer"><tr><td width="40%" align="left"><a accesskey="p" href="tools.html">Prev</a> </td><td width="20%" align="center"> </td><td width="40%" align="right"> <a accesskey="n" href="backends-detail.html">Next</a></td></tr><tr><td width="40%" align="left" valign="top">Chapter 24. Other tools included with PowerDNS </td><td width="20%" align="center"><a accesskey="h" href="index.html">Home</a></td><td width="40%" align="right" valign="top"> Appendix A. Backends in detail</td></tr></table></div></body></html>
