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<H2><A NAME="s13">13.</A> <A HREF="PPP-HOWTO.html#toc13">PPP $B$H%k!<%H8"8B(B</A></H2>
<P>PPP $B$G$O%+!<%M%k$N%k!<%F%#%s%0%F!<%V%k$NJQ99$H$$$C$?%M%C%H%o!<%/%G%P%$(B
$B%9$r@_Dj$9$kI,MW$,$"$k$?$a!"%k!<%H8"8B$,I,MW$K$J$j$^$9!#(B</P>
<P>
$B%k!<%H0J30$N%f!<%6$,(B PPP $B@\B3$r@_Dj$9$k>l9g!"(Bpppd $B%W%m%0%i%`$O%k!<%H$K(B
setuid $B$7$F$*$/I,MW$,$"$j$^$9!#(B</P>
<P>
<BLOCKQUOTE><CODE>
<PRE>
-r-sr-xr-x 1 root root 95225 Jul 11 00:27 /usr/sbin/pppd
</PRE>
</CODE></BLOCKQUOTE>
</P>
<P>/usr/sbin/pppd $B$,$3$N$h$&$J@_Dj$K$J$C$F$$$J$$>l9g!"(B<B>$B%k!<%H$K$J$C$F(B</B>
<BLOCKQUOTE><CODE>
<PRE>
chmod u+s /usr/sbin/pppd
</PRE>
</CODE></BLOCKQUOTE>
$B$H$7$^$9!#(B</P>
<P>$B$3$&$7$F$*$1$P!"%k!<%H0J30$N0lHL%f!<%6$,(B pppd $B$N%P%$%J%j$r<B9T$7$F$b!"(B
pppd $B$O%k!<%H8"8B$GF0$/$h$&$K$J$j!"0lHL%f!<%6$G$b%M%C%H%o!<%/%$%s%?!<(B
$B%U%'%$%9$d%+!<%M%k$N%k!<%F%#%s%0%F!<%V%k$r@_Dj$9$k$?$a$KI,MW$J8"8B$G(B
pppd $B$r<B9T$9$k$3$H$,2DG=$K$J$j$^$9!#(B</P>
<P>$B%k!<%H$K(B setuid $B$5$l$?%W%m%0%i%`$O@x:_E*$J%;%-%e%j%F%#%[!<%k$K$J$j$,$A(B
$B$J$N$G!"%k!<%H$K(B setuid $B$9$k>l9g$OFC$KCm0U$7$F$/$@$5$$!#(Bpppd $B$r4^$a$?(B
$B%k!<%H$K(B setuid $B$9$k$3$H$,I,?\$N%W%m%0%i%`$O%;%-%e%j%F%#$K$O==J,Cm0U$r(B
$BJ'$C$F=q$+$l$F$$$k$N$G!"(Bpppd $B$r;H$&>l9g!"(Bsetuid $B$NLdBj$O$^$:Bg>fIW$G$7$g(B
$B$&(B($B$7$+$7J]>Z$O$"$j$^$;$s(B)</P>
<P>$BC/$G$b(B PPP $B@\B3$r3+;O$G$-$k$h$&$K$9$k$+H]$+$H$$$C$?%7%9%F%`$N;H$$J}$K(B
$B9g$o$;$F!"(Bppp-on/off $B%9%/%j%W%H$NFI$_=P$7$d<B9T$N5v2DB0@-$r@_Dj$7$F$/(B
$B$@$5$$!#$"$J$?0l?M$7$+$=$N(B PC $B$r;H$o$J$$>l9g!"(Ba+rx $B$G$$$$$G$7$g$&!#(B</P>
<P>$B$7$+$7!"(BPPP $B@\B3$r3+;O$G$-$k?M$r@)8B$7$?$$>l9g(B($BNc$($P!"$"$J$?$N;R6!$b(B
$B$"$J$?$N(B Linux $B%^%7%s$K%"%+%&%s%H$r;}$C$F$$$k$1$l$I!"H`$i$K$O%$%s%?!<(B
$B%M%C%H$X@\B3$5$;$?$/$J$$>l9g(B)$B!"(BPPP $B@\B3MQ$N%0%k!<%W$r:n$C$F(B(/etc/group
$B$r=$@5$7$F(B)</P>
<P>
<UL>
<LI>ppp-on/off $B%9%/%j%W%H$r%k!<%H$H(B PPP $B%0%k!<%W$N=jM-$K$7!"(B</LI>
<LI>ppp-on/off $B%9%/%j%W%H$NFI$_=P$75v2D$H<B9T5v2D$r(B PPP $B%0%k!<%W$K$N$_M?$((B
$B$^$9!#(B
<BLOCKQUOTE><CODE>
<PRE>
-rwxr-x--- 1 root PPP 587 Mar 14 1995 /usr/sbin/ppp-on
-rwxr-x--- 1 root PPP 631 Mar 14 1995 /usr/sbin/ppp-off
</PRE>
</CODE></BLOCKQUOTE>
</LI>
<LI>$B$=$l0J30$N5v2DB0@-$OMn$7$F$*$-$^$9!#(B
</LI>
<LI>PPP $B$r<B9T$G$-$k%f!<%6$N$_$r(B /etc/group $B$r=$@5$7$F(B PPP $B%0%k!<%W$KEPO?(B
$B$7$^$9!#(B
</LI>
</UL>
</P>
<P>$B$3$N$h$&$K@_Dj$7$F$b!"0lHL%f!<%6$O%=%U%H%&%'%"E*$K$O(B PPP $B@\B3$r@Z$l$^(B
$B$;$s!#(B<CODE>ppp-off</CODE> $B%9%/%j%W%H$K$O%k!<%H8"8B$,I,MW$G$9!#$7$+$7$J$,(B
$B$i!"%b%G%`$NEE8;$OC/$G$b@Z$l$^$9!*(B</P>
<P>$B;d$,2H$G;H$C$F$$$k%^%7%s$G$O(B pppd $B$r(B root $B$K(B setuid $B$7$F(B<B>$B$$$^$;$s(B</B>$B!#(B PPP $B$r3+;O$9$k$?$a$K!";d$@$1$,CN$C$F$$$k%Q%9%o!<%I$r;H$C$F%k!<(B
$B%H$K$J$C$F<B9T$7$F$$$^$9!#$3$&$7$F$*$1$PB);R$?$A$,%$%s%?!<%M%C%H$K>!<j(B
$B$K@\B3$9$k$3$H$O$G$-$^$;$s!#(B</P>
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