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Paul's Time Sink

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Listen to your network traffic

Paul Westbrook | 21 February, 2006 23:54

Sound of Traffic is a pretty cool little application that "visualizes" the traffic on your network ports as audio sounds. The resulting sounds are pretty interesting. When my computer was not doing much heavy traffic, it sounded very similar to whale sounds.

Here is a mp3 with a sample of what this sounded like on my laptop.

[via macosxhints]

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disable recursion in Bind

Paul Westbrook | 21 February, 2006 16:41

I just noticed that my dns server was being used as a caching dns server for some random host.  In my log files, I was seeing ANY queries for x.h.ctrc.cc.  When I looked at the cache, this was for some encoded data.

Using the documentation on this page, I was able to fix this problem.  The way that I fixed this was to add the following to the options section:

// version statement for security to avoid
// hacking known weaknesses
version "get lost";

// optional - disables all transfers -
// slaves allowed in zone clauses
allow-transfer {"none";};

// optional - disable all recursive queries
allow-recursion {"none";};
recursion no;

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