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Date: Sun, 16 Jun 2002 00:39:42 +0900
From: GOTO Kentaro <gotoken@notwork.org>
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Subject: [FreeBSD-users-jp 69375] Re: getaddrinfo() fails for a specific host name
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At 15 Jun 2002 18:07:08 +0900,
MORI Kouji wrote in [FreeBSD-users-jp 69366]:

> $B<j85$N(B FreeBSD 4.4-RELEASE, FreeBSD 4.5-STABLE, NetBSD 1.5ZC $B$G(B
> getaddrinfo $B$r<B9T$7$?7k2L$r8+$k$H!"$$$:$l$b(B
> 
>   1. AAAA $B$NLd$$9g$o$;(B
>   2. NXDomain $B$N1~Ez(B
>   3. A $B$NLd$$9g$o$;(B
>   4. CNAME $B$H(B A $B$N1~Ez(B
> 
> $B$H$J$C$F$$$^$7$?!#(B(name server $B$O<+A0$G$?$F$F$k(B bind9 $B$G$9(B)

$B$*$*!"(BBIND $B$N%P!<%8%g%s$r8+Mn$H$7$F$$$^$7$?!#(BLAN $B$N(B named $B$r(B 
BIND 9.2.1 ($B$3$l$O(B getaddrinfo() $B$,@.8y$7$F$$$?4D6-$HF1$8(B)$B$K(B
$BJQ99$7$?$3$H$G(B getaddrinfo() $B$b@.8y$7@\B3$G$-$k$h$&$K$J$j$^(B
$B$7$?!#46<U$7$^$9!#(B

bind9$B$K$7$h$&$H;W$C$F$$$?$N$G$A$g$&$INI$+$C$?$H$b8@$($^$9$,!"(B
$B$?$@LdBj$,(B BIND $B$N5sF0$N0c$$$K$"$k$H$7$F!"$I$A$i$,$h$j$^$C$H(B
$B$&$J5sF0$J$N$+$H$$$&$N$,$9$C$-$j$7$^$;$s!#(B

$B8=>]$H$7$F$O!"$3$l$^$G;H$C$F$$$?(B FreeBSD 4.5-RELEASE $BIUB0$N(B 
named 8.2.4-REL $B$@$H>e5-$N(B 3. $B$GMW5a$r<u$1$?(B LAN $B$N(B named $B$,(B
$B30It$KMW5a$r=P$5$:$K(B NXDomain $B$rJV$7$F$7$^$&$N$G$9$,!"(BBIND
9.2.1 $B$N(B named $B$@$H30It$K?V$-$K$$$C$F(B A $B%l%3!<%I$rF@$F$=$l$r(B
$B<u$1$F(B getaddrinfo() $B$,@.8y$9$k!"$H$$$&N.$l$K$J$j$^$9!#(B

tcpdump $BIw$K=q$1$P(B

  $B%j%>%k%P(B > namedX: AAAA? nn1.news.ocn.ad.jp.
  namedX > namedY: AAAA? nn1.news.ocn.ad.jp.
  namedY > namedX: NXDomain*- 0/0/0
  namedX > $B%j%>%k%P(B: NXDomain 0/0/0
  $B%j%>%k%P(B > namedX: A? nn1.news.ocn.ad.jp.

$B$N<!$N0l<j$K<!$N$h$&$J0c$$$,8+$i$l$^$7$?!#(B

  namedX $B$,(B BIND 8.2.4 $B$J$i(B NXDomain $B$r%j%>%k%P$KB(Ez(B
  namedX $B$,(B BIND 9.2.1 $B$J$i(B namedY $B$K(B A $B$r?V$-$K$$$/(B

-- Gotoken
