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Re: DNS problems to RoadRunner - tcp vs udp
On Fri, 13 Jun 2008 14:14:55 EDT, Jon Kibler said: > UDP is used for queries. > > TCP is used for zone transfers. It's also sometimes used if a reply doesn't fit in the 512 bytes for a UDP answer and EDNS0 isn't in effect. You get a truncated UDP packet back and re-ask the query over TCP.