Acknowledgements

The authors would like to thank Francis Dupont and Paul Vixie for their detailed reviews, as well as Andrew Sullivan, Tony Finch, Stephane Bortzmeyer, Joe Abley, Tatuya Jinmei, and the many others who contributed to the mailing list discussion. Also, the authors thank Liang Zhu, Zi Hu, and John Heidemann for extensive DNS-over-TCP discussions and code, and Lucie Guiraud and Danny McPherson for reviewing early draft versions of this document. We would also like to thank all those who contributed to RFC 5966.