<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
<HTML><HEAD>
<META http-equiv=Content-Type content="text/html; charset=utf-8">
<STYLE>
BLOCKQUOTE {
MARGIN-TOP: 0px; MARGIN-BOTTOM: 0px; MARGIN-LEFT: 2em
}
OL {
MARGIN-TOP: 0px; MARGIN-BOTTOM: 0px
}
UL {
MARGIN-TOP: 0px; MARGIN-BOTTOM: 0px
}
P {
MARGIN-TOP: 0px; MARGIN-BOTTOM: 0px
}
BODY {
FONT-SIZE: 10.5pt; COLOR: #000080; LINE-HEIGHT: 1.5; FONT-FAMILY: 宋体
}
</STYLE>
<META content="MSHTML 6.00.2900.6182" name=GENERATOR></HEAD>
<BODY style="MARGIN: 10px">
<DIV> </DIV>
<DIV>I have read your blog and do not agree with you about one of your
conclusions to non-existence of ns rrs of <A
href="http://www.qq.com">www.qq.com</A> in the ns-tel1.qq.com
server. One recursor must request ns rr(s) of <A
href="http://www.qq.com">www.qq.com</A> to the ns[1-4].qq.com server before
requesting to ns-tel[1-2].qq.com. When it receives the ns rrs and glue rrs of <A
href="http://www.qq.com">www.qq.com</A> from ns[1-4].qq.com, it may at
last ask ns-tel[1-2].qq.com what your ns
rr(s) is(are). If non-existence, the recursor will continue to
ask other disired type of rrs of <A
href="http://www.qq.com">www.qq.com</A> to the ns-tel[1-2].qq.com,
otherwise will send requests to the informed servers. No other bad things are
seen.</DIV>
<HR style="WIDTH: 210px; HEIGHT: 1px" align=left color=#b5c4df SIZE=1>
<DIV><SPAN>liu mingxing</SPAN></DIV>
<DIV> </DIV>
<DIV
style="BORDER-RIGHT: medium none; PADDING-RIGHT: 0cm; BORDER-TOP: #b5c4df 1pt solid; PADDING-LEFT: 0cm; PADDING-BOTTOM: 0cm; BORDER-LEFT: medium none; PADDING-TOP: 3pt; BORDER-BOTTOM: medium none">
<DIV
style="PADDING-RIGHT: 8px; PADDING-LEFT: 8px; FONT-SIZE: 12px; BACKGROUND: #efefef; PADDING-BOTTOM: 8px; COLOR: #000000; PADDING-TOP: 8px">
<DIV><B>From:</B> <A href="mailto:pyh@staff.dnsbed.com">Jeff Peng</A></DIV>
<DIV><B>Date:</B> 2012-03-21 15:30</DIV>
<DIV><B>To:</B> <A
href="mailto:bind-users@lists.isc.org">bind-users</A></DIV>
<DIV><B>Subject:</B> Re: glub or authauthority NS is cached and used at a
cache dns server?</DIV></DIV></DIV>
<DIV>
<DIV>You might want to read my this blog；</DIV>
<DIV>http://www.nsbeta.info/archives/115</DIV>
<DIV> </DIV>
<DIV>HTH</DIV>
<DIV> </DIV>
<DIV>于 2012-3-21 15:07, Felix New 写道:</DIV>
<DIV>></DIV>
<DIV>> when i dumpdb from the cache dns, some domain's ns records are glue </DIV>
<DIV>> DNS, and others are authauthority.</DIV>
<DIV>></DIV>
<DIV>> The TTL are different. which type is used in Cache DNS?</DIV>
<DIV> </DIV>
<DIV>_______________________________________________</DIV>
<DIV>Please visit https://lists.isc.org/mailman/listinfo/bind-users to unsubscribe from this list</DIV>
<DIV> </DIV>
<DIV>bind-users mailing list</DIV>
<DIV>bind-users@lists.isc.org</DIV>
<DIV>https://lists.isc.org/mailman/listinfo/bind-users</DIV></DIV></BODY></HTML>