http://www.provos.org/index.php?/pages/dnstest.html

DNS Resolver Test

For secure name resolution, it is important that your DNS resolver uses random 
source ports. The box below will tell you if there is something you need to 
worry about.

Your DNS Resolver needs to be updated.

If the box says that you are using random ports, there is nothing to worry 
about. If it shows a red border, your resolver does not use completely random 
source ports. This could imply a security problem; see the following CERT 
advisory. However, some resolvers have implemented countermeasures that do not 
solely rely on random source sources.

There is a little bit more information about this security problem on Dan 
Kaminsky's blog. 

Should be we getting worried now?

-- 
Eugen* Leitl <a href="http://leitl.org";>leitl</a> http://leitl.org
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ICBM: 48.07100, 11.36820 http://www.ativel.com http://postbiota.org
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