Jon Kibler wrote:
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Mark Price wrote:
<SNIP>
>From what I have read, public DNS servers should support both UDP and
TCP queries. TCP queries are often used when a UDP query fails, or if
the answer is over a certain length.
UDP is used for queries.
TCP is used for zone transfers.
If my server responded to TCP queries from anyone other than a secondary
server, I would be VERY concerned.
I see long TXT records from some DNSBLs that won't fit in a UDP packet
on a daily basis. Certainly nothing to be concerned about.
~Seth
