On 05.12.2012 10:07, abang wrote:

I wonder how can a answer packet from our PowerDNS Recursor (3.4-pre)
exceeds 512 bytes.

By means of DNS Extensions. http://tools.ietf.org/html/rfc2671

I thought this is the limit and it should be truncated.

The hard limit is 64kBytes, though most nameservers limit their answers to 4kB or less. That's usually configurable but I can't figure out the config options for pdns right now, if there are any.


Hauke.

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