Really? Maybe it is not. The recursor receives a response with additional section from a zone and if it finds that the nameservers in the authority section of the response belong to the zone, it will use the glue records in the additonal section, elsewise, it will laungh a new query about address of the nameservers. 2011-09-02
Mingxing 发件人： Doug Barton 发送时间： 2011-09-02 12:50:00 收件人： 风河 抄送： bind-users 主题： Re: about the additional section On 09/01/2011 21:23, 风河 wrote: > i just want to make sure about it, The rules for what is and is not included in the ADDITIONAL section are not only not strict, they vary from server to server, and sometimes they vary with different versions of the same server. > and will the client resolver use the additional records directly? Ok, now that is a question we can answer. :) Short answer is yes. The longer answer is that the real answer is "usually yes," but you really don't need to worry about it. The resolver will do what it's going to do, in the most efficient manner possible. hope this helps, Doug -- Nothin' ever doesn't change, but nothin' changes much. -- OK Go Breadth of IT experience, and depth of knowledge in the DNS. Yours for the right price. :) http://SupersetSolutions.com/ _______________________________________________ Please visit https://lists.isc.org/mailman/listinfo/bind-users to unsubscribe from this list bind-users mailing list bind-users@lists.isc.org https://lists.isc.org/mailman/listinfo/bind-users
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