From owner-FreeBSD-users-jp@jp.FreeBSD.org Mon Sep 23 20:29:22 2002
Received: (from daemon@localhost)
	by castle.jp.FreeBSD.org (8.11.6+3.4W/8.11.3) id g8NBTMv11191;
	Mon, 23 Sep 2002 20:29:22 +0900 (JST)
	(envelope-from owner-FreeBSD-users-jp@jp.FreeBSD.org)
Received: from serio.al.rim.or.jp (serio.al.rim.or.jp [202.247.191.123])
	by castle.jp.FreeBSD.org (8.11.6+3.4W/8.11.3) with ESMTP/inet id g8NBTL311186
	for <FreeBSD-users-jp@jp.FreeBSD.org>; Mon, 23 Sep 2002 20:29:21 +0900 (JST)
	(envelope-from yoshiaki@kt.rim.or.jp)
Received: from mail4.rim.or.jp
	by serio.al.rim.or.jp (3.7W/HMX-13) id UAA27509
	for <FreeBSD-users-jp@jp.FreeBSD.org>; Mon, 23 Sep 2002 20:29:21 +0900 (JST)
Received: from kt.rim.or.jp (yoshiaki.st.rim.or.jp [202.247.140.34]) by mail4.rim.or.jp (8.9.3/3.7W)
	id UAA25357 for <FreeBSD-users-jp@jp.FreeBSD.org>; Mon, 23 Sep 2002 20:28:54 +0900 (JST)
Received: from localhost (localhost [127.0.0.1])
	by kt.rim.or.jp (8.12.6/8.12.6) with ESMTP id g8NBSplZ001077
	for <FreeBSD-users-jp@jp.FreeBSD.org>; Mon, 23 Sep 2002 20:28:51 +0900 (JST)
	(envelope-from yoshiaki@kt.rim.or.jp)
Message-Id: <20020923.202851.74756435.yoshiaki@kt.rim.or.jp>
To: FreeBSD-users-jp@jp.FreeBSD.org
From: Yoshiaki Uchikawa <yoshiaki@kt.rim.or.jp>
In-Reply-To: <20020923140426.B7A3.UCHIYAMA@pp.iij4u.or.jp>
References: <20020923.112816.41629791.yoshiaki@kt.rim.or.jp>
	<20020923.120559.71085845.yoshiaki@kt.rim.or.jp>
	<20020923140426.B7A3.UCHIYAMA@pp.iij4u.or.jp>
X-Mailer: Mew version 3.0.63 on Emacs 21.2 / Mule 5.0 (SAKAKI)
Mime-Version: 1.0
Content-Type: Text/Plain; charset=iso-2022-jp
Content-Transfer-Encoding: 7bit
Reply-To: FreeBSD-users-jp@jp.FreeBSD.org
Precedence: list
Date: Mon, 23 Sep 2002 20:28:51 +0900
X-Sequence: FreeBSD-users-jp 70966
Subject: [FreeBSD-users-jp 70966] Re: nslookup
Errors-To: owner-FreeBSD-users-jp@jp.FreeBSD.org
Sender: owner-FreeBSD-users-jp@jp.FreeBSD.org
X-Originator: yoshiaki@kt.rim.or.jp
X-Distribute: distribute version 2.1 (Alpha) patchlevel 24e+020902

$B$&$A$+$o$G$9(B

>>>>> From: Koji Uchiyama <uchiyama@pp.iij4u.or.jp>
>>>>> Date: Mon, 23 Sep 2002 14:35:32 +0900

 > 
 > [FreeBSD-users-jp 70938] $B$G(B nslookup $B$K$D$$$FH/8@$7$?(B
 > $BFb;398Fs(B <uchiyama@pp.iij4u.or.jp> $B$G$9!#(B
 > 
 > # $B$[$+$K$bFb;3$5$s$,$$$i$C$7$c$k$h$&$G$9$,!"(B
 > # $B;d$O(B wakwak $B$H$O2?$N4X78$b$"$j$^$;$s(B

$B!t;d$OFb;3$G$O$"$j$^$;$s$,@N(B chat$B$r$d$C$F$$$k$H$h$/4V0c$($i$l$^$7$?(B
$B!t$D!<$+L>;I$r%5%s%W%k$J$7$G:n$k$H4V0c$($i$l$?$j%f!<%6EPO?$,4V0c$C$F$$(B
$B!t$?$j!#!VFb@n!W$C$F0F30>/$J$$L>;z$J$N$h(B

 > 
 > [FreeBSD-users-jp 70949] $B$N;~E@$G(B
 > $B!V(Bdig, host $B$K$h$kL>A02r7h$,$G$-$F$$$k!W$H$NJs9p$,$"$k$h$&$G$9!#(B

$B;d$N;H$C$F$$$k%W%m%P%$%@$O%a!<%k$NG[Aw$,CY$$$N$G9T$-0c$$$K$J$C$F$7$^$C(B
$B$?$h$&$G$9$,$=$N$h$&$G!#(B
$B$I$&$bFb;398Fs$5$s$N=q$$$?$3$H$,(B($B;d$K$H$C$F(B)$BJ,$j$K$/$+$C$?$N$G8m2r$7$?(B
$B$H$$$&;v$b$"$C$?$h$&$G$9!#(B

$B$*OM$S$,$F$i@0M}$5$;$FD:$-$^$9!#(B
$BIaCJ;HMQ$7$F$$$J$$%V%m!<%I%P%s%I%k!<%?(B(NTT-ME BA5000 Pro)$B$K(BDNS ploxy
$B$N5!G=$,$"$j$^$7$?$N$G$3$l$r;H$C$?>l9g$NF0:n$r<($7$F$*$-$^$9!#(B
  
 $BFbIt%M%C%H%o!<%/(B       192.168.1/24
 $B%k!<%?%"%I%l%9(B         192.168.1.128		adsl.xxxx
 $B%W%m%P%$%@$N(BDNS$B%5!<%P(B  aaa.bbb.ccc.ddd

 1. /etc/resolv.conf $B$K30It$N(BDNS$B%5!<%P$rD>@\;XDj$7$?>l9g$NF0:n(B
  % nslookup www.jp.freebsd.org

# ethereal$B$r;H$C$?J}$,$o$+$j$d$9$$I=<($r$7$F$/$l$k$,7k2L$r%l%]!<%H$9$k(B
# $B>l9g$O(Btcpdump$B$G$9$M(B...
----tcpdump$B$N7k2L(B($B0lItJT=8(B)----
19:01:04.926194 singer.xxxx.49375 > aaa.bbb.ccc.ddd.domain:
  64088+ PTR? ddd.ccc.bbb.aaa.in-addr.arpa.

19:01:04.948727 aaa.bbb.ccc.ddd.domain > singer.xxxx.49375: 
  64088* q: PTR? ddd.ccc.bbb.aaa.in-addr.arpa.

19:01:04.949156 singer.xxxx.49376 > aaa.bbb.ccc.ddd.domain:
  64089+ A? www.jp.freebsd.org.

19:01:04.972573 aaa.bbb.ccc.ddd.domain > singer.xxxx.49376: 
  64089 q: A? www.jp.freebsd.org. 
----
$B$3$3$^$G$G$b@bL@$5$l$F$$$^$9$,(Bnslookup$B$G$O:G=i$K(Bresolv.conf$B$G;XDj$5$l(B
$B$F$$$k%M!<%`%5!<%P<+BN$N(BPTR$B%U%#!<%k%I$NLd$$9g$o$;$r9T$$$^$9!#(B

/etc/resolv.conf$B$N(Bnameserver $B$r(B192.168.1.128$B$K;XDj$7$F%k!<%?$N(BDNS
ploxy$B$r;H$C$?>l9g$O$3$&$J$j$^$9!#(B
----
19:50:59.856024 singer.xxxx.49466 > adsl.xxxx.domain:
  64731+ PTR? 128.1.168.192.in-addr.arpa.
19:50:59.878581 adsl.xxxx.domain > singer.xxxx.49466:
  64731 NXDomain 0/1/0 
----
$B;XDj$7$F$$$k(Bnameserver$B$O(B 192.168.1.128$B$J$N$G(B192.168.1.128$B$K$D$$$F$N(B
PTR$B$NLd$$9g$o$;$r9T$$$^$9$,%k!<%?$,%U%)%o!<%I$9$k>e0L$N%M!<%`%5!<%P(B
$B$K$O(B192.168.1.128$B$N>pJs$J$s$F$"$j$^$;$s$N$G(B"no such name"$B$N%l%9%]%s%9(B
$B$,JV$C$F$-$^$9(B($B$3$l$O(Bethereal$BEy$G8+$k$H$o$+$j$d$9$$(B)$B!#(B
nslookup $B$O$3$N;~E@$G$=$l0J8e$NLd$$9g$o$;$r9T$$$^$;$s$+$i%(%i!<$K$J$C(B
$B$F=*N;$7$^$9!#(B

*** Can't find server name for address 192.168.1.128: Non-existent host/domain
*** Default servers are not available

$B!t$3$l!"%k!<%?$N(BDNS ploxy$B$K%k!<%?<+?H$N>pJs$rLd$$9g$o$;$?>l9g$KE,@Z$J(B
$B!t1~Ez$rJV$9$h$&$J;EMM$K$9$k$+!"FbItB&$N(BDNS$B$N5!G=$r;}$?$;$k$H2r7h$9$k(B
$B!tLdBj$G$7$g$&$M!#(B
$B!tLLE]$@$+$i$d$i$J$$$N$G$7$g$&$1$I!#(B

$B!t(B nslookup$B$N2r<a$H$7$F$O!V%G%U%)%k%H$N%M!<%`%5!<%P$,MxMQ$G$-$J$$!W(B
$B!t(B $B:G=i$N%M!<%`%5!<%P$KBP$9$k(BPTR$B$NLd$$9g$o$;$O%M!<%`%5!<%P$NF0:n%A%'(B
$B!t(B $B%C%/$N$D$b$j$J$N$G$7$g$&!#(B

dig$B$r;H$C$?>l9g$O(B192.168.1.128$B$K$D$$$F$NLd$$9g$o$;$O9T$$$^$;$s!#(B
---
20:09:48.336026 singer.xxxx.49484 > adsl.xxxx.domain:
   2+ A? www.jp.freebsd.org. 
20:09:48.373456 adsl.xxxx.domain > singer.xxxx.49484:
   2* 1/4/3 A updraft.jp.FreeBSD.ORG
20:09:49.211056 singer.xxxx.49485 > adsl.xxxx.domain:
   51160+ PTR? 42.158.157.210.in-addr.arpa. 
20:09:49.234622 adsl.xxxx.domain > singer.xxxx.49485: 
   51160 2/1/1[|domain]
---

$B$$$^$"$k!V%V%m!<%I%P%s%I%k!<%?!W$d(BPPPoA$BMQ$N%b%G%`(B($B%k!<%?5!G=IU$-(B)
$B$G$O$3$&$$$&F0:n$,I8=`E*$J$s$G$7$g$&$M$'!#(B

$B2r7hJ}K!(B(?)$B$O(B

1.$B!V%V%m!<%I%P%s%I%k!<%?!W$N(BDNS proxy$B$O;H$o$J$$(B 
  -> $B%W%m%P%$%@$N(BDNS$B%5!<%P$N%"%I%l%9$rD>@\;XDj(B

2. nslookup$B$,JQ$J$N$@$+$i(Bnslookup$B$O<N$F$k(B
 
3. $BFbIt8~$1$N2r7h$b9T$&$3$H$N$G$-$k(BDNS$B%5!<%P$r:n$j$=$A$i$r;2>H$9$k$h$&(B
   $B$K$9$k!#(B

$B$J$I!#;d$O$:!<$C$H(B1.$B$J$N$G5$$,IU$+$J$+$C$?!#(B
--
  yoshiaki@kt.rim.or.jp
 ($B$&(B) 
