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Message-Id: <20100808.012726.27776427.tatsuya-t@sannet.ne.jp>
To: FreeBSD-users-jp@jp.FreeBSD.org
From: Tatsuya TANIKAWA <tatsuya-t@sannet.ne.jp>
In-Reply-To: <4C5D304F.4060108@greentag.to>
References: <20100807.092830.233672159.tatsuya-t@sannet.ne.jp>
	<4C5D304F.4060108@greentag.to>
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Date: Sun, 08 Aug 2010 01:27:26 +0900
X-Sequence: FreeBSD-users-jp 93125
Subject: [FreeBSD-users-jp 93125] Re: sendmail 'host name lookup failure'
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$B>pJs$"$j$,$H$&$4$6$$$^$9!#C+@n$G$9!#(B

From: Takeda Fumiya <take@greentag.to>
Subject: [FreeBSD-users-jp 93124] Re: sendmail 'host name lookup failure'
Date: Sat, 07 Aug 2010 19:07:11 +0900
> > mail.rohm.co.jp.	10	IN	A	125.206.241.124
> > mail.rohm.co.jp.	10	IN	A	202.33.138.44
> > mail.rohm.co.jp.	10	IN	A	124.37.35.124
> 
> $B>e5-$N%"%I%l%9$G!"(B125.206.241.124$B$N5U0z$-$,(B SERVFAIL $B$K(B
> $B$J$k$+$i$G$O$J$$$G$7$g$&$+!#(B

sendmail$B$O<u?.;~$K$O(B IP$B%"%I%l%9$+$i$N5U0z$K$h$C$F(B host$BL>(B(PTR$B%l%3!<(B
$B%I(B)$B$r<hF@$7(B Received$B%X%C%@$d%m%0$N5-O?$KMxMQ$7$?$j!"99$K5a$a$?(B
host$BL>$+$i(B IP$B%"%I%l%9$r@50z$-$7(B forged $B$G$"$k$+Ey$NH=CG$KMxMQ$7(B
$B$?$j$b$7$F$*$j!"$=$N:]$K$O(B /etc/hosts --> DNS $B$N=g$K(B($B$"$k$$$O(B
/etc/nsswitch.conf$B$G$NDj5A=g$K(B?)$B;2>H$7$F$/$l$k$h$&$G$9!#(B
$B$b$7$+$7$FAw?.;~$K$b(B /etc/hosts $B$r;2>H$7$F$/$l$k$N$G$O$J$$$+$H??$C(B
$B@h$KDI2C$7$F$_$?$N$G$9$,8z2L$O$"$j$^$;$s$G$7$?!#(B
$B$=$l$G<+NO$G$N2r7h$OFq$7$$$HH=CG$7$?$o$1$G$9!#(B

> $B?tG/A0$KEvJ}$G$b$"$kFCDj$N%a!<%k$,Aw?.%(%i!<$K$J$k$H$$$&LdBj$,(B
> $B$"$j$^$7$?!#(B
> $BD4::$7$?$H$3$m!"%a!<%k%(%/%9%A%'%s%8%c$N%"%I%l%9$N@50z$-$G!"(B
> A$B%l%3!<%I$O@5>o$K0z$1$k$N$G$9$,!"(BAAAA$B%l%3!<%I$G(B SERVFAIL
> $B$,JV$5$l$F$$$^$7$?!#@5>o$J(BAAAA$B%l%3!<%I$N@50z$-$G$O!"(BNOERROR$B$+!"(B
> NXDOMAIN$B$,JV$j$^$9!#(B
> $B$=$3$G(B/etc/hosts$B$K$=$N%a!<%k%(%/%9%A%'%s%8%c$N%"%I%l%9$rEPO?$7$F!"(B
> $B$H$j$"$($:$7$N$.$^$7$?!#(B

$B$5$9$,$K(B DNS$B$N@50z$-$,$G$-$J$/!"B>$K(B IP$B%"%I%l%9$r5a$a$kJ}K!$,L5(B
$B$1$l$P(B(/etc/hosts $B$KEPO?$,L5$1$l$P(B)$B$I$&$9$k$3$H$b$G$-$J$$$N$G$9(B
$B$,!">e5-$N$H$*$j(B A$B%l%3!<%I$,0z$1$k$N$J$i2?$b(B AAAA$B%l%3!<%I$,0z$1(B
$B$J$/$H$b(B IPv4 $B$G@\B3$7$F$/$l$?$i$$$$$N$K$H;W$$$^$9!#$I$&$7$F(B
IPv6 $BM%@h$J$N$G$7$g$&$+!#(B
$B$^$?!"$J$<(B /etc/hosts $B$K(B IPv4$B%"%I%l%9$r=q$$$?$@$1$G:#EY$O(B IPv6
$B$K$3$@$o$i$J$/$J$k$N$+$bg%$KMn$A$J$$$H$3$m$G$9!#(B(AAAA$B%l%3!<%I$,(B
$B0z$1$J$1$l$P(B IPv6$B%"%I%l%9$OITL@$J$N$G(B /etc/hosts $B$K$O=q$1$J$$$H(B
$B>!<j$KH=CG$7$F$$$^$9!#(B)
$B$3$NJU$b(B sendmail$B$N7x$/$F4h8G$J$H$3$m$@$H;W$$$^$9!#(B:-)

$B3N$+$K(B sendmail$B$b$"$k%P!<%8%g%s$^$G$OAw?.;~$K$b(B /etc/hosts $B$rM%(B
$B@hE*$K;2>H$7$F$/$l$F$$$?$h$&$J5-21$,;d$K$b$"$k$N$G$9$,!">/$J$/$H(B
$B$b(B 8.14.4 $B$O(B DNS$BM%@h$J$h$&$G$9!#(B(FreeBSD$BI8=`$N(B sendmail.cf $B$K$h(B
$B$k$N$+$bCN$l$^$;$s!#(B)
$B$b$C$H$b(B MX$B%l%3!<%I<+BN(B DNS$B$G$7$+0z$1$J$$$N$G!"(BMX$B$,0z$1$?$N$J$i(B
IP$B%"%I%l%9$b(B A$B%l%3!<%I$d(B AAAA$B%l%3!<%IEy$N(B DNS$B>e$N>pJs$+$i5a$a$h(B
$B$&$H$9$k$N$O(B(/etc/hosts $B$KMj$m$&$H$7$J$$$N$O(B)$B$9$4$/G<F@$N$$$/;E(B
$BMM$@$H;W$C$F$$$^$9!#(B

$B%j%H%i%$$NEY$K%m%0$K$OI,$:!"(B
Deferred: Name server: mail.rohm.co.jp.: host name lookup failure
$B$H5-O?$,;D$j$^$9!#(B

% dig mx rohm.co.jp
;; ANSWER SECTION:
rohm.co.jp.		600	IN	MX	5 sfgw.rohm.co.jp.
rohm.co.jp.		600	IN	MX	10 mail.rohm.co.jp.

$B$^$:!"M%@h=g0L$N9b$$J}$N(B sfgw.rohm.co.jp $B$,I>2A$5$l<!$K(B
mail.rohm.co.jp $B$,I>2A$5$l$k$O$:$J$N$G!"(Bsendmail$B$+$i$O(B 2$BBf$H$bF1(B
$B$8M}M3$G!V;H$($J$$E[!W$HH=CG$5$l$F$$$=$&$G$9!#(B:-)

# $BB>$K$b(B FreeBSD + sendmail $B$r1?MQ$7$F$$$k%5%$%H$O$"$j$=$&$J$N$K(B
# @rohm.co.jp $B%I%a%$%s08$N%a!<%k$,F1$8$h$&$K>c32$K$J$C$F$$$k=j$O(B
# $BL5$$$N$@$m$&$+!"!"!"(B
--
 $BC+@n(B $BC#Li(B  TANIKAWA Tatsuya
 mailto: tatsuya-t@sannet.ne.jp
 PGP Key fingerprint = 1D 8D CB 10 8A 8B 67 B0  9A B9 9C 14 37 50 BC F5

