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<H1>Linux Security HOWTO</H1>
<H2>Kevin Fenzi, <CODE>kevin@tummy.com</CODE> & Dave Wreski, <CODE>dave@linuxsecurity.com</CODE></H2>v1.1.1, 17 March 2000
<H2>The Linux Japanese FAQ Project</H2>31 March 2000
<P><HR>
<EM>$B$3$N%I%-%e%a%s%H$G$O(B,
Linux $B%7%9%F%`$N4IM}<T$,Ax6x$9$k%;%-%e%j%F%#4XO";v9`$K$D$$$F$N(B
$B0lHLE*$J2r@b$r9T$$$^$9(B. $B$3$N%I%-%e%a%s%H$G$O(B,
$B%;%-%e%j%F%#$KBP$9$k0lHLE*$J9M$(J}$H(B,
Linux $B%7%9%F%`$r?/F~<T$+$i$h$j0BA4$K$9$kJ}K!$N6qBNNc$r07$C$F$$$^$9(B.
$B$^$?(B, $B%;%-%e%j%F%#4XO"$N>pJs$d%W%m%0%i%`$X$N%]%$%s%?$b4^$^$l$F$$$^$9(B.
$B2~A1(B, $B7z@_E*$JHcH=(B, $BDI2C(B, $BD{@5$O4?7^$7$^$9(B.
$B%U%#!<%I%P%C%/$rCx<TN>J}$KAw$C$F$/$@$5$$(B.
$B$=$N:]$K$O%5%V%8%'%/%H$K!V(BSecurity HOWTO$B!W$H$$$&J8;zNs$rF~$l$F$/$@$5$$(B.</EM>
<HR>
<P>
<P>
<P>
<H2><A NAME="toc1">1.</A> <A HREF="Security-HOWTO-1.html">$B$O$8$a$K(B</A></H2>
<UL>
<LI><A HREF="Security-HOWTO-1.html#ss1.1">1.1 $B$3$N%I%-%e%a%s%H$N:G?7HG$K$D$$$F(B</A>
<LI><A HREF="Security-HOWTO-1.html#ss1.2">1.2 $B%U%#!<%I%P%C%/(B</A>
<LI><A HREF="Security-HOWTO-1.html#ss1.3">1.3 $BLH@U;v9`(B</A>
<LI><A HREF="Security-HOWTO-1.html#ss1.4">1.4 $BCx:n8"I=<((B</A>
<LI><A HREF="Security-HOWTO-1.html#ss1.5">1.5 $BF|K\8lLu$K$D$$$F(B</A>
</UL>
<P>
<H2><A NAME="toc2">2.</A> <A HREF="Security-HOWTO-2.html">$B35MW(B</A></H2>
<UL>
<LI><A HREF="Security-HOWTO-2.html#ss2.1">2.1 $B$J$<%;%-%e%j%F%#$,I,MW$J$N$+(B</A>
<LI><A HREF="Security-HOWTO-2.html#ss2.2">2.2 $B$I$NDxEY0BA4$J$i0BA4$J$N$+(B?</A>
<LI><A HREF="Security-HOWTO-2.html#ss2.3">2.3 $B2?$r<i$k$N$+(B?</A>
<LI><A HREF="Security-HOWTO-2.html#ss2.4">2.4 $B%;%-%e%j%F%#%]%j%7!<$N:n@.(B</A>
<LI><A HREF="Security-HOWTO-2.html#ss2.5">2.5 $B<+J,$N%5%$%H$r0BA4$K$9$k$3$H$N0U5A(B</A>
<LI><A HREF="Security-HOWTO-2.html#ss2.6">2.6 $BK\%I%-%e%a%s%H$N9=@.(B</A>
</UL>
<P>
<H2><A NAME="toc3">3.</A> <A HREF="Security-HOWTO-3.html">$BJ*M}E*$J%;%-%e%j%F%#(B</A></H2>
<UL>
<LI><A HREF="Security-HOWTO-3.html#ss3.1">3.1 $B%3%s%T%e!<%?$X$N;\>{(B</A>
<LI><A HREF="Security-HOWTO-3.html#ss3.2">3.2 BIOS $B$N%;%-%e%j%F%#(B</A>
<LI><A HREF="Security-HOWTO-3.html#ss3.3">3.3 $B%V!<%H%m!<%@$N%;%-%e%j%F%#(B</A>
<LI><A HREF="Security-HOWTO-3.html#ss3.4">3.4 xlock $B$H(B vlock</A>
<LI><A HREF="Security-HOWTO-3.html#ss3.5">3.5 $BJ*M}E*$J967b$r<u$1$?$3$H$NH/8+(B</A>
</UL>
<P>
<H2><A NAME="toc4">4.</A> <A HREF="Security-HOWTO-4.html">$B%m!<%+%k$N%;%-%e%j%F%#(B</A></H2>
<UL>
<LI><A HREF="Security-HOWTO-4.html#ss4.1">4.1 $B?75,%"%+%&%s%H$N:n@.(B</A>
<LI><A HREF="Security-HOWTO-4.html#ss4.2">4.2 root $B$N%;%-%e%j%F%#(B</A>
</UL>
<P>
<H2><A NAME="toc5">5.</A> <A HREF="Security-HOWTO-5.html">$B%U%!%$%k$H%U%!%$%k%7%9%F%`$N%;%-%e%j%F%#(B</A></H2>
<UL>
<LI><A HREF="Security-HOWTO-5.html#ss5.1">5.1 umask $B$N@_Dj(B</A>
<LI><A HREF="Security-HOWTO-5.html#ss5.2">5.2 $B%U%!%$%k$N%Q!<%_%C%7%g%s(B</A>
<LI><A HREF="Security-HOWTO-5.html#ss5.3">5.3 $B%7%9%F%`@09g@-$N%A%'%C%/(B</A>
<LI><A HREF="Security-HOWTO-5.html#ss5.4">5.4 $B%H%m%$$NLZGO(B</A>
<LI><A HREF="Security-HOWTO-5.html#ss5.5">5.5 $B%Q%9%o!<%I$N%;%-%e%j%F%#$H0E9f2=(B </A>
<LI><A HREF="Security-HOWTO-5.html#ss5.6">5.6 PGP $B5Z$S8x3+800E9f(B</A>
<LI><A HREF="Security-HOWTO-5.html#ss5.7">5.7 SSL, S-HTTP, HTTPS, S/MIME</A>
<LI><A HREF="Security-HOWTO-5.html#ss5.8">5.8 Linux $B$K$*$1$k(B IPSEC $B$N<BAu(B</A>
<LI><A HREF="Security-HOWTO-5.html#ss5.9">5.9 <CODE>ssh</CODE> (Secure Shell) $B$H(B <CODE>stelnet</CODE></A>
<LI><A HREF="Security-HOWTO-5.html#ss5.10">5.10 PAM - $B8r492DG=$JG'>Z%b%8%e!<%k(B</A>
<LI><A HREF="Security-HOWTO-5.html#ss5.11">5.11 $B0E9f$K$h$k(B IP $B$N%+%W%;%k2=(B (Cryptographic IP Encapsulation, CIPE)</A>
<LI><A HREF="Security-HOWTO-5.html#ss5.12">5.12 Kerberos</A>
<LI><A HREF="Security-HOWTO-5.html#ss5.13">5.13 $B%7%c%I%&%Q%9%o!<%I(B</A>
<LI><A HREF="Security-HOWTO-5.html#ss5.14">5.14 "Crack" $B$*$h$S(B "John the Ripper"</A>
<LI><A HREF="Security-HOWTO-5.html#ss5.15">5.15 CFS ($B0E9f2=%U%!%$%k%7%9%F%`(B)$B$H(B TCFS ($BF)2aE*0E9f2=%U%!%$%k%7%9%F%`(B)</A>
<LI><A HREF="Security-HOWTO-5.html#ss5.16">5.16 X11, SVGA, $B%G%#%9%W%l%$$K4X$9$k%;%-%e%j%F%#(B</A>
</UL>
<P>
<H2><A NAME="toc6">6.</A> <A HREF="Security-HOWTO-6.html">$B%+!<%M%k$N%;%-%e%j%F%#(B</A></H2>
<UL>
<LI><A HREF="Security-HOWTO-6.html#ss6.1">6.1 $B%P!<%8%g%s(B 2.0 $B$N%+!<%M%k$N%3%s%Q%$%k%*%W%7%g%s(B</A>
<LI><A HREF="Security-HOWTO-6.html#ss6.2">6.2 $B%P!<%8%g%s(B 2.2 $B$N%+!<%M%k$N%3%s%Q%$%k%*%W%7%g%s(B</A>
<LI><A HREF="Security-HOWTO-6.html#ss6.3">6.3 $B%+!<%M%k%G%P%$%9(B</A>
</UL>
<P>
<H2><A NAME="toc7">7.</A> <A HREF="Security-HOWTO-7.html">$B%M%C%H%o!<%/$N%;%-%e%j%F%#(B</A></H2>
<UL>
<LI><A HREF="Security-HOWTO-7.html#ss7.1">7.1 $B%Q%1%C%HEpD0(B</A>
<LI><A HREF="Security-HOWTO-7.html#ss7.2">7.2 $B%7%9%F%`%5!<%S%9$H(B tcp_wrappers</A>
<LI><A HREF="Security-HOWTO-7.html#ss7.3">7.3 DNS $B>pJs$N3NG'(B</A>
<LI><A HREF="Security-HOWTO-7.html#ss7.4">7.4 <CODE>identd</CODE></A>
<LI><A HREF="Security-HOWTO-7.html#ss7.5">7.5 SATAN, ISS $B$=$NB>$N%M%C%H%o!<%/C5::%W%m%0%i%`(B</A>
<LI><A HREF="Security-HOWTO-7.html#ss7.6">7.6 <CODE>sendmail</CODE>, <CODE>qmail</CODE> $BEy$N(B MTA</A>
<LI><A HREF="Security-HOWTO-7.html#ss7.7">7.7 $B%5!<%S%9K832967b(B</A>
<LI><A HREF="Security-HOWTO-7.html#ss7.8">7.8 NFS (Network File System) $B$N%;%-%e%j%F%#(B</A>
<LI><A HREF="Security-HOWTO-7.html#ss7.9">7.9 NIS (Network Information service) ($B$+$D$F$N(B YP)</A>
<LI><A HREF="Security-HOWTO-7.html#ss7.10">7.10 $BKI2PJI(B($B%U%!%$%"%&%)!<%k(B)</A>
<LI><A HREF="Security-HOWTO-7.html#ss7.11">7.11 IP Chains - Linux $B%+!<%M%k(B 2.2.x $B$K$*$1$kKI2PJI$N9=C[(B</A>
<LI><A HREF="Security-HOWTO-7.html#ss7.12">7.12 $B2>A[%W%i%$%Y!<%H%M%C%H%o!<%/(B(VPN, Virtual Private Network)</A>
</UL>
<P>
<H2><A NAME="toc8">8.</A> <A HREF="Security-HOWTO-8.html">$B%;%-%e%j%F%#$N=`Hw(B ($B%M%C%H%o!<%/$K@\B3$9$kA0$K(B)</A></H2>
<UL>
<LI><A HREF="Security-HOWTO-8.html#ss8.1">8.1 $B%^%7%sA4BN$N%P%C%/%"%C%W$N:n@.(B</A>
<LI><A HREF="Security-HOWTO-8.html#ss8.2">8.2 $BE,@Z$J%P%C%/%"%C%W7W2h$N7hDj(B</A>
<LI><A HREF="Security-HOWTO-8.html#ss8.3">8.3 RPM $B%U%!%$%k%G!<%?%Y!<%9$d(B Debian $B$N%U%!%$%k%G!<%?%Y!<%9$N%P%C%/%"%C%W(B</A>
<LI><A HREF="Security-HOWTO-8.html#ss8.4">8.4 $B%7%9%F%`%m%0$N4F;k(B</A>
<LI><A HREF="Security-HOWTO-8.html#ss8.5">8.5 $B%7%9%F%`99?7%Q%C%1!<%8$NE,MQ(B</A>
</UL>
<P>
<H2><A NAME="toc9">9.</A> <A HREF="Security-HOWTO-9.html">$B%7%9%F%`$K?/F~$5$l$?>l9g$d8=:_?/F~$5$l$F$$$k>l9g$NBP1~(B</A></H2>
<UL>
<LI><A HREF="Security-HOWTO-9.html#ss9.1">9.1 $B%;%-%e%j%F%#$,GK$i$l$F$$$k:GCf(B</A>
<LI><A HREF="Security-HOWTO-9.html#ss9.2">9.2 $B4{$K%;%-%e%j%F%#$,GK$i$l$F$7$^$C$?>l9g(B</A>
</UL>
<P>
<H2><A NAME="toc10">10.</A> <A HREF="Security-HOWTO-10.html">$B%;%-%e%j%F%#4X78$N>pJs8;(B</A></H2>
<UL>
<LI><A HREF="Security-HOWTO-10.html#ss10.1">10.1 FTP $B%5%$%H(B</A>
<LI><A HREF="Security-HOWTO-10.html#ss10.2">10.2 $B%&%'%V%5%$%H(B</A>
<LI><A HREF="Security-HOWTO-10.html#ss10.3">10.3 $B%a!<%j%s%0%j%9%H(B</A>
<LI><A HREF="Security-HOWTO-10.html#ss10.4">10.4 $B=q@R(B</A>
</UL>
<P>
<H2><A NAME="toc11">11.</A> <A HREF="Security-HOWTO-11.html">$BMQ8l2r@b(B</A></H2>
<P>
<H2><A NAME="toc12">12.</A> <A HREF="Security-HOWTO-12.html">$B$h$/$"$k<ALd(B</A></H2>
<P>
<H2><A NAME="toc13">13.</A> <A HREF="Security-HOWTO-13.html">$B$^$H$a(B</A></H2>
<P>
<H2><A NAME="toc14">14.</A> <A HREF="Security-HOWTO-14.html">$B<U<-(B</A></H2>
<HR>
<A HREF="Security-HOWTO-1.html">$B<!$N%Z!<%8(B</A>
$BA0$N%Z!<%8(B
$BL\<!$X(B
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