On 04.10.10 15:04, Benoit Panizzon wrote:
> Hello
>
> I quite often stumble over DNS entries without SOA.
>
Indeed, this also new for me.
at least BIND won't serve zones without SOA-Record..


Found something about it here:
REDUCIBLE COMPLEXITY IN DNS
http://www.iadis.net/dl/final_uploads/200817L019.pdf

Just a quote here:

"Zones without SOA or wrong SOA We were surprised to see that there are
zones without SOA RRs, e.g., 888melody.info. This strengthens our claim
that one could use DNS without any SOA records. SOA RRs are useless
since email address can be found in RP (responsible person RR) and
timings are not longer needed since the notification mechanism is used
by default. The start of zone can be determined through delegation from
a parent zone. As seen in the previous section, the name server is also
actually considered optional."

Beat


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