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Message-Id: <20041102.000503.78756761.hrs@eos.ocn.ne.jp>
To: man-jp@jp.FreeBSD.org
From: Hiroki Sato <hrs@FreeBSD.org>
In-Reply-To: <200411011004.TAA00766@kces1.koganemaru.co.jp>
References: <20041101.004810.28828426.hrs@eos.ocn.ne.jp>
	<200411011004.TAA00766@kces1.koganemaru.co.jp>
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Date: Tue, 02 Nov 2004 00:05:03 +0900
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Subject: [man-jp 5539] Re: =?ISO-2022-JP?B?GyRCTHU4bDgrRD4kNxsoQg==?=
 (Set-user-ID)
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$B:4F#!wEl5~M}2JBg3X$G$9!#(B

Nobuyuki Koganemaru <n-kogane@syd.odn.ne.jp> wrote
  in <200411011004.TAA00766@kces1.koganemaru.co.jp>:

n-k> $B1Q8l$N$^$^$H$$$&$N$O!"H?BP$G$9!#8=:_$NF|K\8l%^%K%e%"%k$N%9%?%$%k$K9g$$$^$;(B
n-k> $B$s!#%3%^%s%IL>$d?ML>0J30$O(B ($B%+%?%+%J8l$b4^$a$F(B) $BF|K\8l$KLu$5$l$F$$$^$9!#(B
n-k> 
n-k> $BF|K\8l$K$G$-$J$$$b$N!"$=$N$^$^$N$[$&$,$h$$$b$N!"0lHLE*$K;H$o$l$F$$$k$b$N(B
n-k> $B$O%+%?%+%J$H$J$C$F$$$^$9!#(B
n-k> 
n-k> UNIX $B$N5;=Q<T$O(B set-user-ID $B$N$3$H$r!V%f!<%6(B ID $B@_Dj!W$H$O8F$S$^$;$s!#(B
n-k> $B!V%;%C%H%f!<%6(B ID ($B%"%$%G%#(B)$B!W(B $B$G$9!#(B
n-k> 
n-k> POSIX $B$,(B set-user-ID $B$K$J$C$F$$$k$+$I$&$+!"3N$+$a$F$O$$$^$;$s$,!"(B
n-k> set-user-ID $B$,(B set user ID $B$G$J$/(B set-user-ID $B$H$J$C$F$$$k$N$O0UL#$,$"$k$H(B
n-k> $B;W$$$^$9!#86J8$N1Q8l$b(B set user ID $B$OF|K\8l$N!V%f!<%6(B ID $B@_Dj!W$N$h$&$KFC(B
n-k> $BJL$N0UL#$N$J$$0lHLE*$J8@MU$H:.F1$5$l$J$$$h$&$K4V$K(B - ($B%^%$%J%9Id9f(B) $B$rIU$1(B
n-k> $B$F$$$k$N$G$O$J$$$G$7$g$&$+!)(B
n-k> 
n-k> $BF|K\8l$N>l9g$O4A;z$dJ?2>L>$G$O$J$/%+%?%+%J$K$9$k$3$H$G!"0lHLE*$G$J$$FCJL$N(B
n-k> $B8@MU$,$"$k$3$H$r<($;$^$9!#$h$jFCJL$G$"$k$3$H$r<($9$?$a$K$O(B ($B:G=i$N%a!<%k(B
n-k> $B$G<($7$?(B) $B!V%;%C%H(B-$B%f!<%6(B-ID$B!W$K$9$k$3$H$G$9$,!"$o$?$7$O(B
n-k> $B!V%;%C%H%f!<%6(B ID$B!W$G$b$h$$$H;W$$$^$9!#(B

 $B$A$g$C$HO@E@$r$^$H$a$^$9!#(B

 1) $B%+%?%+%J8l$K$9$Y$-$+$I$&$+$O5DO@$NBP>]$K$J$k$H;W$$$^$9$,!"(B
    FreeBSD $B$N30$GN.DL$7$F$$$k4{B8$NK]Lu$,E}0l$5$l$F$$$J$$$3$H$O(B
    $B4*0F$9$Y$-$@$H;W$$$^$9!#(B

 2) $B8D?ME*$K$O(B set-user-ID $B$O(B root, listen, bind, jail $B$N$h$&$K!"(B
    $B865A0J>e$N0UL#$rIU2C$7$?=Q8l$G$"$k$H9M$($F$$$^$9(B (man-jp $B$G$O(B
    $B$3$l$i$N8l$r868l$N$^$^MQ$$$F$$$?$H5-21$7$F$$$^$9(B)$B!#(B
    $B%^%K%e%"%kA4BN$r8+$k$H(B set-user-ID $B$H(B setuid $B$H$$$&N>J}$NI=8=$,(B
    $BEP>l$7$^$9$7!"(Bsetuid root program $B$H$$$&7AMF;lE*$JI=8=$b8=$l$^$9$N$G!"(B
    $B$3$l$i$KE}0lE*$JLu8l$rEv$F$O$a$k$N$OFq$7$$$H;W$$$^$9!#(B
    $B$?$H$($P(B intro(2) $B$K$O(B saved set user ID $B$N$h$&$K%O%$%U%s$,$J$$7A$b(B
    $B$"$j$^$9!#Lu8l$r$"$F$k$J$i!"$=$l$>$l$KBP1~$9$kLu8l$r5DO@$9$kI,MW$,(B
    $B$"$k$G$7$g$&!#(B

 $BLu8l$K$D$$$F$O5DO@$7$F$bF2!9=d$j$@$H;W$$$^$9$N$G!"(B
 $B$o$?$7$O!VJ#?t$NI=8=$KBP$7$FE}0l$7$?8l$r$"$F$k!W(B
 $B!V=i=P$G%+%C%3=q$-$N868l$rDI2C$9$k!W$K0lI<$G$9!#(B

 $B%O%$%U%s$,$D$$$F$$$k$N$O1QJ8K!E*$JM}M3$+$i$@$H;W$$$^$9!#(B
 $B$3$l$OF0;l$r4^$`O"8l$r7AMF;l$H$7$F;H$&$?$a$N0lHLE*$J5-K!$G$9!#(B

 chroot $B$H$+$HF1$8$/!"%7%9%F%`%3!<%k$KM3Mh$9$kL>;l!&7AMF;l$r(B
 $B%+%?%+%J$K$9$k$N$O2?$+0cOB46$,$"$j$^$9!#8@MU$G$O%A%'%s%8%k!<%H$H$+(B
 $B%;%C%H%f!<%6(B ID $B$C$F8F$S$^$9$1$I!"J8>O$G$=$&=q$$$F$"$k$H(B
 $B85$N0UL#$,O"A[$G$-$J$/$F!"NI$$I=8=$@$H$O;W$($J$$$s$G$9$h$M!#(B
 $B%+%C%3=q$-$G$b$$$$$N$G868l$r;D$7$FM_$7$$!"$H$$$&$N$O$=$&$$$&M}M3$+$i$G$9!#(B

--
| $B:4F#(B $B9-@8!wEl5~M}2JBg3X(B

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