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Date: Fri, 10 Sep 1999 11:44:32 +0900 (JST)
From: Koga Youichirou <y-koga@jp.freebsd.org>
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TOMITA Shigenari <ts@icu.ac.jp>:
> $BCY$/$J$j$^$7$?$,!"K]Lu$7$?$b$N$r$*Aw$j$7$^$9!#::FI$r$h$m$7$/$*4j$$$$$?(B
> $B$7$^$9!#%U%)!<%^%C%H$O(B 99:03 ftpd $B$r;29M$K$$$?$7$^$7$?!#(B

$B%Q%A%Q%A%Q%A!y(B

> $BIT0B$J$H$3$m$O!V2r@b!W$H!V1F6A!W$G$9!'(B
> 
>    - $B!V%W%m%0%i%`(B login$B!W$H$$$&$N$OJ8F,$J$N$G!V(BLogin$B!W$H$9$k$@$1$GNI$+$C(B
>      $B$?$G$7$g$&$+!)(B

$B%W%m%0%i%`(B login $B$h$j$O!"(Blogin $B%3%^%s%I(B $B$NJ}$,$7$C$/$j$/$k$+$J!#(B

>    - $B86J8!V(Bnormal chown$B!W$,$h$/$o$+$j$^$;$s$G$7$?!#(B

$B!VDL>o$N(B chown$B!W$G$$$$$s$8$c$J$$$+$J$!!)(B

>    - $B86J8!V(Bany login$B!W$,$h$/$o$+$j$^$;$s$G$7$?!#(B

$B!V$=$N8e%m%0%$%s$7$F$-$?%f!<%6$NC<Kv!W$HJdB-$7$F$*$/$H$$$$$N$+$b!#(B

>    - man in the middle $B967b$H$$$&$N$b(B $B!D(B

$BIaDL!V(Bman-in-the-middle $B967b!W$H8F$V$N$G!"$3$N$^$^$G$$$$$G$7$g$&!#(B
$B%5!<%S%9$H%f!<%6$N4V$K0-0U$N$"$kBh;0<T$,$$$F!"$=$$$D$,%f!<%6$KBP$7$F$O(B
$B%5!<%S%9$K!"%5!<%S%9$KBP$7$F$O%f!<%6$K$J$j$9$^$7!"%f!<%6$N8"8B$rC%$C$?(B
$B$j!"ITEv$K%5!<%S%9$rMxMQ$9$k$h$&$J967b$G$9!#(B

> I.   $BGX7J(B
> 
> BSD4.4 $B$N%U%!%$%k%7%9%F%`$G$O(B, $B%U%!%$%k$K4X$9$kB?<o$N%U%i%0$,DI2C$5$l(B

$B86J8$,$3$&$J$N$@$,!"(B4.4BSD $B$+$J!)(B

> II.  $B2r@b(B
> 
> $B%f!<%6$O(B, $B<+J,$,%m%0%$%s$7$F$$$k%G%P%$%9$N%U%i%0$d%b!<%I$r@_Dj$G$-$^$9(B. 
> $B%W%m%0%i%`(B login $B$dB>$NF1N`$N$b$N$K@x$`%P%0$,860x$G(B, $BDL>o$N(B chown $B$r<:(B

$BF1N`$h$j$OF1<o$@$m$&$1$I!"D>Lu!V;w$?%W%m%0%i%`!W$G$$$$$h$&$J5$$,$7$^$9!#(B

> $BGT$5$;$k$3$H$,$G$-$k$?$a(B, $B:G=i$N%f!<%6$,$$$+$J$k%m%0%$%s$K$h$k%?!<%_%J(B
> $B%k$b=jM-$G$-$^$9(B.
> 
> III. $B1F6A(B
> 
> $B%m!<%+%k$N%f!<%6$G$"$l$P(B, $BB>$N%f!<%6(B(root $B$r4^$`(B)$B$,%m%0%$%s$7$?;~E@$G(B 
> man in the middle $B967b$r;E3]$1$k$3$H$,$G$-$^$9(B. $B$3$l$K$h$j(B, $BHo32<T$,=P(B
> $BNO$9$k$9$Y$F$N%F%-%9%H$rGA$$$?$j2~cb$7$?$j$9$k$3$H$,$G$-$^$9(B. $B7k6I(B, $BHo(B
> $B32<T$K$J$j$9$^$5$l$F%3%^%s%I$,<B9T$5$l$?$j(B, $B%Q%9%o!<%I(B($B$5$i$K(B, $BB>$N%[(B
> $B%9%H$H$N%3%M%/%7%g%s>e$K=PNO$5$l$k%Q%9%o!<%I$r4^$`$"$i$f$k%F%-%9%H(B)$B$r(B
> $BEp$^$l$F$7$^$$$^$9(B.

write $B$r=PNO$HLu$7$F$$$k$N$,$A$g$C$H5$$K$J$j$^$9$,!"Bg6Z$O9g$C$F$$$^$9!#(B
$B=q$-9~$_$H$+F~NO$8$c$J$$$+$J!)(B

s/$B%3%^%s%I$,(B/$B$=$NHo32<T%f!<%6$N8"8B$G%3%^%s%I$r(B/
s/$B%Q%9%o!<%I(B/$B%f!<%6$N%Q%9%o!<%I(B/g
s/$B%3%M%/%7%g%s>e$K=PNO$5$l$k(B/$B%3%M%/%7%g%s$GF~NO$5$l$k(B/

> VI.  $B<U<-(B
> 
> Theo de Raadt $B;a$+$i>e5-$N%U%!%$%"%&%)!<%kE*$J2r7h:v$rDs0F$$$?$@$-$^$7$?(B.
> 
> lumpy@blue.9mm.com $B;a$K$h$C$F$3$NLdBj$,L@$k$_$K=P$^$7$?(B.

$B%a!<%k%"%I%l%9$K!V;a!W$r$D$1$k$N$O$A$g$C$HJQ$+$b!#(B

----
$B$3$,$h$&$$$A$m$&(B
