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Date: Thu, 2 Apr 1998 08:23:49 +0900 (JST)
Message-Id: <199804012323.IAA14213@it.secnet.co.jp>
From: Ryuji Hisasue <ryujih@it.secnet.co.jp>
To: FreeBSD-net-jp@jp.freebsd.org
In-Reply-To: <199804011039.TAA13576@smicec-smtp.smicec.co.jp>
References: <199803310854.RAA00713@it.secnet.co.jp> <199804011039.TAA13576@smicec-smtp.smicec.co.jp>
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Subject: [FreeBSD-net-jp 542] Re: Private Addresses.
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$B5WKv(B@SEC $B$G$9!#(B

On Wed, 1 Apr 1998 19:38:29 +0900
Bunpei Matoba <bm@pt.smicec.co.jp> wrote:

> 
> $B$J$k$[$I(BPrivate Network$B$N5U0z$-$r0z$/>l9g$O(B127.0.0.1$B!$(B
> ($B$D$^$j(BA$B$N(Bprimary 16.172.in-addr.arpa,
> 29.172.in-addr.arpa, 168.192.in-addr.arpa)$B$,(B
> $BF/$$$F!$$=$3$G(BNon-existent host/domain$B$r(B
> $B$9$0JV$7$F$/$l$k$H;W$$$^$9!%(B
> 
> $B$7$+$7!$(BA$B$N%^%7%s$O(BGlobal Network$BB&$N5U0z$-$,(B
> $B@5>o$K$G$-$F$^$9!)(B
> $BF1$8$/!$(BNon-existent host/domain$B$r(B
> $BJV$7$F$/$k$?$a!$(BB$B$K$?$:$M$K$$$+$J$/$F(B
> $B:$$C$F$7$^$$$^$;$s$+!)(B

it # nslookup - localhost
Default Server:  localhost.it.internal
Address:  127.0.0.1

> set q=ptr
> 1.1.29.172.in-addr.arpa.
Server:  localhost.it.internal
Address:  127.0.0.1

*** localhost.it.internal can't find 1.1.29.172.in-addr.arpa.: Non-existent host
/domain
> 1.32.234.133.in-addr.arpa.
Server:  localhost.it.internal
Address:  127.0.0.1

*** localhost.it.internal can't find 1.32.234.133.in-addr.arpa.: Server failed

$B%W%i%$%Y!<%H%"%I%l%9$N;~$O(B Non-existent host/domain $B$J$N$G(B OK$B!#(B
$B%0%m!<%P%k%"%I%l%9$N;~$O(B Server Failed $B$H$J$C$F$*$j!"(B/etc/resolv.conf $B$K(B
$B;XDj$5$l$?<!$N%M!<%`%5!<%P$KLd$$9g$o$;$K9T$/$N$G$O!)(B

$B$H=q$-$^$7$?$,!"8=>u$O(B Global $B$N%M!<%`%5!<%P$N(B named.boot $B$K!"(B

	bogusns 192.41.0.5 128.9.64.26

$B$N0l9T$rDI2C$7$F2sHr$7$F$$$^$9!#(B
O'Reilly $B$N(B DNS and BIND 2nd Edition $B$rD4$Y$F$$$?$i8+$D$1$^$7$?!#(B
bind 4.9.3 $B0J9_$G;H$($k$i$7$$$G$9!#(B

$B$=$N$&$A!"8=:_$N9=@.$r2~$a$kM=Dj(B(POP $B%5!<%P$O%W%i%$%Y!<%H$K$9$k(B)$B$G$9$N$G!"(B
$B$=$l$^$G$3$l$G2fK}$7$h$&$+$H9M$($F$*$j$^$9!#(B

> Global Network$BB&$H%$%s%?!<%M%C%H$N4V$K(B
> $B%U%!%$%"!<%&%)!<%k$,$"$l$P$3$s$J?4G[$O(B
> $B$J$$$H;W$&$N$G$9$,!$(B
> $B$b$7!$(BPrivate Network$B$N5U0z$-$r>\:Y$K(B
> $B@_Dj$7$F$$$F!$%$%s%?!<%M%C%HB&$+$i(B
> $B%^%7%s(BA$B$r(Bserver$B$H$7$F;2>H$5$l$?>l9g!$(B
> $BFbIt$N>pJs$r30It$K8+$i$l$F$7$^$&$H$$$&(B
> $BLdBj$O$J$$$G$7$g$&$+!)(B

Fake DNS $B$G$9$+$i!"<B:]$K%[%9%H$N>pJs$OEPO?$7$F$$$^$;$s!#(B

$B$b$A$m$sLdBj$,$J$$$H$O$$$($^$;$s$,!"$3$l$+$iLdBj$N$J$$$h$&$J9=@.$K(B
$B$J$k$h$&EXNO$7$F$$$-$^$9!#(B

# $B$d$k5$$O$"$C$F$b2K$HM=;;$,$J$$!#(B

--------
Ryuji Hisasue      SEC Corporation.
ryujih@it.secnet.co.jp
hisasue@hotweb.or.jp
hisasue@pa2.so-net.ne.jp



