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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 3.2 Final//EN">
<HTML>
<HEAD>
 <META NAME="GENERATOR" CONTENT="SGML-Tools 1.0.9">
 <TITLE>Virtual Services Howto: ²¾ÁÛ¥¹¥¯¥ê¥×¥È(Virt scripts)</TITLE>
 <LINK HREF="Virtual-Services-HOWTO-5.html" REL=next>
 <LINK HREF="Virtual-Services-HOWTO-3.html" REL=previous>
 <LINK HREF="Virtual-Services-HOWTO.html#toc4" REL=contents>
</HEAD>
<BODY>
<A HREF="Virtual-Services-HOWTO-5.html">¼¡¤Î¥Ú¡¼¥¸</A>
<A HREF="Virtual-Services-HOWTO-3.html">Á°¤Î¥Ú¡¼¥¸</A>
<A HREF="Virtual-Services-HOWTO.html#toc4">Ìܼ¡¤Ø</A>
<HR>
<H2><A NAME="s4">4. ²¾ÁÛ¥¹¥¯¥ê¥×¥È(Virt scripts)</A></H2>

<H2><A NAME="ss4.1">4.1 virtfs</A>
</H2>

<P>³Æ¥É¥á¥¤¥ó¤Ï¤½¤ì¤¾¤ì¤Î¥Ç¥£¥ì¥¯¥È¥ê¹½Â¤¤ò»ý¤Ã¤Æ¤¤¤Þ¤¹¡£<CODE> chroot </CODE>¤ò
»È¤Ã¤Æ¤¤¤ë¤Î¤Ç¥·¥§¥¢¥é¥¤¥Ö¥é¥ê(shared libraries), ¥Ð¥¤¥Ê¥ê, conf ¥Õ¥¡¥¤¥ëÅù
¤Î ½ÅÊ£¤·¤¿¥³¥Ô¡¼¤¬É¬Íפˤʤê¤Þ¤¹¡£Ãø¼Ô¤Ï³Æ¥É¥á¥¤¥óÍѤÎ
<CODE>/virtual/domain.com</CODE>¤òºî¤ê¡¢¤½¤ì¤¾¤ì¤Ë¥³¥Ô¡¼¤·¤Æ»È¤Ã¤Æ¤¤¤Þ¤¹¡£
¤½¤Î¤¿¤á¿¤¯¤Î¥Ç¥£¥¹¥¯¥¹¥Ú¡¼¥¹¤ò»È¤¤¤Þ¤¹¤¬¿·¤·¤¤¥Þ¥·¥ó¤ä¥Í¥Ã¥È¥ï¡¼¥¯¥«¡¼¥É
¤ò¹ØÆþ¤¹¤ë¤è¤ê¤Ï°Â²Á¤Ç¤·¤ç¤¦¡£¤â¤·¥Ç¥£¥¹¥¯¥¹¥Ú¡¼¥¹¤òÀáÌó¤·¤¿¤¤¤Î¤Ê¤é
¤½¤ì¤¾¤ì¤Î¥Õ¥¡¥¤¥ë¤ò¥ê¥ó¥¯¤¹¤ì¤Ð´Ö¤Ë¹ç¤¤¤Þ¤¹
(ÌõÃí¡§¤³¤Î¥ê¥ó¥¯¤Ï¥·¥ó¥Ü¥ê¥Ã¥¯¥ê¥ó¥¯¤Ç¤Ï¤¢¤ê¤Þ¤»¤ó)¡£
<P> 
¤³¤³¤Çvirtfs¥¹¥¯¥ê¥×¥È¤ÎÎã¤ò¤¢¤²¤Þ¤¹¡£
<P>
<HR>
<PRE>
#!/bin/bash

echo '$Revision: 1.2 $'

echo -n "Enter the domain name: "
read domain

if [ "$domain" = "" ]
then
        echo Nothing entered: aborting
        exit 0
fi

leadingdir=/virtual

echo -n "Enter leading dir: (Enter for default: $leadingdir): "
read ans

if [ "$ans" != "" ]
then
        leadingdir=$ans
fi 

newdir=$leadingdir/$domain

if [ -d "$newdir" ]
then
        echo New directory: $newdir: ALREADY exists
        exit 0
else
        echo New directory: $newdir
fi

echo Create $newdir
mkdir -p $newdir

echo Create bin
cp -pdR /bin $newdir

echo Create dev
cp -pdR /dev $newdir

echo Create dev/log
ln -f /virtual/log $newdir/dev/log

echo Create etc
mkdir -p $newdir/etc
for i in /etc/* 
do 
        if [ -d "$i" ]
        then 
                continue
        fi
        cp -pd $i $newdir/etc
done

echo Create etc/skel
mkdir -p $newdir/etc/skel

echo Create home
for i in a b c d e f g h i j k l m n o p q r s t u v w x y z 
#   (ÌõÃí¡§¤³¤³¤Î[a-z]¤Ï¤½¤ì¤¾¤ìÀßÄꤹ¤ë¥æ¡¼¥¶¡¼Ì¾¤ËÊѹ¹¤·¤Þ¤¹)
do 
        mkdir -p $newdir/home/$i
done

echo Create home/c/crc
mkdir -p $newdir/home/c/crc
chown crc.users $newdir/home/c/crc
#  (ÌõÃí¡§¤³¤³¤âÀßÄꤷ¤¿¥æ¡¼¥¶¡¼¤Ë¹ç¤ï¤»¤ÆÊѹ¹¤·¤Æ²¼¤µ¤¤)

echo Create lib
mkdir -p $newdir/lib
for i in /lib/* 
do 
        if [ -d "$i" ]
        then 
                continue
        fi
        cp -pd $i $newdir/lib
done

echo Create proc
mkdir -p $newdir/proc

echo Create sbin
cp -pdR /sbin $newdir

echo Create tmp
mkdir -p -m 0777 $newdir/tmp
chmod +t $newdir/tmp

echo Create usr
mkdir -p $newdir/usr

echo Create usr/bin
cp -pdR /usr/bin $newdir/usr

echo Create usr/lib
mkdir -p $newdir/usr/lib

echo Create usr/lib/locale
cp -pdR /usr/lib/locale $newdir/usr/lib
#       (ÌõÃí¡§¤³¤³¤Î¥Ç¥£¥ì¥¯¥È¥êŬÅö¤ËÊѹ¹¤·¤Þ¤¹)

echo Create usr/lib/terminfo
cp -pdR /usr/lib/terminfo $newdir/usr/lib

echo Create usr/lib/zoneinfo
cp -pdR /usr/lib/zoneinfo $newdir/usr/lib

echo Create usr/lib/\*.so\*
cp -pdR /usr/lib/*.so* $newdir/usr/lib

echo Create usr/sbin
cp -pdR /usr/sbin $newdir/usr

echo Linking usr/tmp
ln -s /tmp $newdir/usr/tmp

echo Create var
mkdir -p $newdir/var

echo Create var/lock
cp -pdR /var/lock $newdir/var

echo Create var/log
mkdir -p $newdir/var/log

echo Create var/log/wtmp
cp /dev/null $newdir/var/log/wtmp

echo Create var/run
cp -pdR /var/run $newdir/var

echo Create var/run/utmp
cp /dev/null $newdir/var/run/utmp

echo Create var/spool
cp -pdR /var/spool $newdir/var

echo Linking var/tmp
ln -s /tmp $newdir/var/tmp 

echo Create var/www/html
mkdir -p $newdir/var/www/html
chown webmast.www $newdir/var/www/html
#  (ÌõÃí¡§¤³¤³¤Îchown¤âŬÅö¤ËÊѹ¹¤·¤Æ¤ª¤¤¤Æ²¼¤µ¤¤¡£°Ê²¼Æ±ÍÍ)
chmod g+s $newdir/var/www/html

echo Create var/www/master
mkdir -p $newdir/var/www/master
chown webmast.www $newdir/var/www/master

echo Create var/www/server
mkdir -p $newdir/var/www/server
chown webmast.www $newdir/var/www/server

exit 0
</PRE>
<HR>
<P>
<H2><A NAME="ss4.2">4.2 virtexec</A>
</H2>

<P> 
²¾Á۴Ķ­¤Ç¥³¥Þ¥ó¥É¤ò¼Â¹Ô¤¹¤ë¤Ë¤Ï¤½¤Î¥Ç¥£¥ì¥¯¥È¥ê¤Ø<CODE> chroot </CODE>¤·¤Æ¤«¤é
¼Â¹Ô¤·¤Þ¤¹¡£¤³¤³¤Ç¥³¥Þ¥ó¥É¤òÁàºî¤¹¤ëvirtexec¤ò¸Æ¤Ó½Ð¤¹¥·¥§¥ë
¥¹¥¯¥ê¥×¥È¤ò½ñ¤­¤Þ¤·¤¿¡£
(ÌõÃí¡§°Ê²¼¤Î¥³¡¼¥É¤òÀÚ¤ê¼è¤Ã¤Æ<CODE>/usr/bin</CODE>¥Ç¥£¥ì¥¯¥È¥ê¤Ë¥³¥Ô¡¼
¤·¤Þ¤¹¡£Â°À­¤ÎÊѹ¹(<CODE>chmod +x</CODE>)¤ò¤·¤Æ¤ª¤¤¤Æ²¼¤µ¤¤)¡£
<HR>
<PRE>
#!/bin/sh

echo '$Revision: 1.2 $'

BNAME=`basename $0`
FIRST4CHAR=`echo $BNAME | cut -c1-4`
REALBNAME=`echo $BNAME | cut -c5-`

if [ "$BNAME" = "virtexec" ]
then
        echo Cannot run virtexec directly: NEED a symlink
        exit 0
fi

if [ "$FIRST4CHAR" != "virt" ]
then
        echo Symlink not a virt function
        exit 0
fi

list=""
num=1
for i in /virtual/*
do
        if [ ! -d "$i" ]
        then
                continue
        fi
        if [ "$i" = "/virtual/lost+found" ]
        then
                continue
        fi
        list="$list $i $num"
        num=`expr $num + 1`
done

if [ "$list" = "" ]
then
        echo No virtual environments exist
        exit 0
fi

dialog --clear --title 'Virtexec' --menu Pick 20 70 12 $list 2> /tmp/menu.$$
if [ "$?" = "0" ]
then
        newdir=`cat /tmp/menu.$$`
else
        newdir=""
fi
tput clear
rm -f /tmp/menu.$$

echo '$Revision: 1.2 $'

if [ ! -d "$newdir" ]
then
        echo New directory: $newdir: NOT EXIST
        exit 0
else
        echo New directory: $newdir
fi

echo bname: $BNAME

echo realbname: $REALBNAME

if [ "$*" = "" ]
then
        echo args: none
else
        echo args: $*
fi

echo Changing to $newdir
cd $newdir

echo Running program $REALBNAME

chroot $newdir $REALBNAME $*

exit 0
</PRE>
<HR>

¤³¤ì¤ò¼Â¹Ô¤¹¤ë¤Ë¤Ï³Æ¼«¤Î¥·¥¹¥Æ¥à¤Ë<CODE> dialog </CODE>¥×¥í¥°¥é¥à¤¬¥¤¥ó¥¹¥È¡¼¥ë
¤µ¤ì¤Æ¤¤¤ëɬÍפ¬¤¢¤ê¤Þ¤¹¡£Ãí°Õ¤·¤Æ¤¯¤À¤µ¤¤¡£
(<EM>ÌõÃí¡§</EM>dialog = ¥·¥§¥ë¥¹¥¯¥ê¥×¥È¤«¤é¥À¥¤¥¢¥í¥°¥Ü¥Ã¥¯¥¹¤ò³«¤¯
¥³¥Þ¥ó¥É¤Ç¤¹¡£¤Û¤È¤ó¤É¤Î¥·¥¹¥Æ¥à¤Ç¤Ï¥¤¥ó¥¹¥È¡¼¥ë¤µ¤ì¤Æ¤¤¤Þ¤¹)¡£
virtexec¤ò»È¤¦¤¿¤á¤Ë¥·¥ó¥Ü¥ê¥Ã¥¯¥ê¥ó¥¯¤ò¤Ï¤ê¤Þ¤¹¡£Î㤨¤Ð¡¢
<PRE>
ln -s /usr/bin/virtexec /usr/bin/virtpasswd
ln -s /usr/bin/virtexec /usr/bin/virtvi
ln -s /usr/bin/virtexec /usr/bin/virtpico
ln -s /usr/bin/virtexec /usr/bin/virtemacs
ln -s /usr/bin/virtexec /usr/bin/virtmailq
</PRE>

¤³¤³¤Ç<CODE>virtvi¡¢virtpasswd¡¢virtmailq</CODE>Åù¤ÈÆþÎϤ¹¤ì¤Ð¤½¤ì¤¾¤ìvi¤¬µ¯Æ°¤·¤¿
¤ê¡¢¥æ¡¼¥¶¡¼¤Î¥Ñ¥¹¥ï¡¼¥É¤¬Êѹ¹¤Ç¤­¤¿¤ê¡¢²¾ÁÛ¥·¥¹¥Æ¥à¾å¤Î¥á¡¼¥ë¥­¥å¡¼¤ò
¥Á¥§¥Ã¥¯¤Ç¤­¤¿¤ê¤·¤Þ¤¹¡£É¬Íפ˱þ¤¸¤Æ¤â¤Ã¤È¿¤¯¥ê¥ó¥¯¤ò¤Ï¤ë¤³¤È¤â¤Ç¤­¤Þ¤¹¡£
¤·¤«¤·¥×¥í¥°¥é¥à¤¬¥·¥§¥¢¥é¥¤¥Ö¥é¥ê(shared library)¤òɬÍפȤ¹¤ë¤È¤­¤Ï
²¾ÁÛ¥Õ¥¡¥¤¥ë¥·¥¹¥Æ¥à¾å¤Ë¤Ê¤±¤ì¤Ð¤Ê¤ê¤Þ¤»¤ó¡£¥Ð¥¤¥Ê¥ê¥Õ¥¡¥¤¥ë¤âƱÍͤË
²¾ÁÛ¥Õ¥¡¥¤¥ë¥·¥¹¥Æ¥à¾å¤Ë¤Ê¤±¤ì¤Ð¤Ê¤ê¤Þ¤»¤ó¡£
<P>
<H2><A NAME="ss4.3">4.3 virtfs¤Èvirtexec¤Ë´Ø¤¹¤ëÃí°Õ</A>
</H2>

<P>Ãø¼Ô¤ÏÁ´¤Æ¤Î¥¹¥¯¥ê¥×¥È¤ò/usr/bin¤Ë¥¤¥ó¥¹¥È¡¼¥ë¤·¤Æ¤¤¤Þ¤¹¡£²¾ÁÛ¥Õ¥¡¥¤¥ë
¥·¥¹¥Æ¥à¾å¤ËÃÖ¤­¤¿¤¯¤Ê¤¤¤â¤Î¤Ï/usr/local¤ËÃÖ¤¤¤Æ¤¤¤Þ¤¹¡£¥¹¥¯¥ê¥×¥È¤Ï
¥³¥Ô¡¼¤Ë´Ø¤·¤Æ¤Ê¤Ë¤â¥¿¥Ã¥Á¤·¤Ê¤¤¤è¤¦¤Ë¤·¤Þ¤¹¡£
²¾ÁÛ¥Õ¥¡¥¤¥ë¥·¥¹¥Æ¥à´Ö¤Ç¤Þ¤¿¤¬¤é¤Ê¤¤¤³¤È¤¬½ÅÍפÊÁ´¤Æ¤Î¥Õ¥¡¥¤¥ë¤Ïºï½ü¤·¤Ê¤¯
¤Æ¤Ï¤¤¤±¤Þ¤»¤ó¡£
Î㤨¤Ð¡¢Ãø¼Ô¤Î¥·¥¹¥Æ¥à¤Ë¤Ïssh¤¬¥¤¥ó¥¹¥È¡¼¥ë¤µ¤ì¤Æ¤¤¤Þ¤¹¤¬¡¢¥×¥é¥¤¥Ù¡¼¥È¥­¡¼
(private key)¤Ï¤É¤Î²¾ÁÛ¥Õ¥¡¥¤¥ë¥·¥¹¥Æ¥à¤«¤é¤â¸«¤¨¤ë¤è¤¦¤Ë¤Ï¤·¤¿¤¯¤¢¤ê¤Þ¤»¤ó¡£
¤½¤³¤Çvirtfs¤ò¼Â¹Ô¤·¤¿¸å¤Ë¤½¤ì¤¾¤ì¤Î²¾ÁÛ¥Õ¥¡¥¤¥ë¥·¥¹¥Æ¥à¤«¤é¥×¥é¥¤¥Ù¡¼¥È¥­¡¼
¤òºï½ü¤·¤Æ¤¤¤Þ¤¹¡£
(<EM>ÌõÃí¡§</EM>ssh¤ÏSecure Shell¤Î¤³¤È¤Ç¤¹¡£<CODE>secure authentication,
encryption, encrypted X11 connections, encrypted TCP/IP forwarding</CODE>
¤ò¤â¤Ã¤¿¥ê¥â¡¼¥È¥í¥°¥¤¥ó¥×¥í¥°¥é¥à¤Ç,ŬÅö¤Ê¥¢¡¼¥«¥¤¥Ö¥µ¡¼¥Ð¤Î
<CODE>archives/net/ssh/</CODE>¥Ç¥£¥ì¥¯¥È¥ê¤Ê¤É¤«¤éÆþ¼ê¤Ç¤­¤Þ¤¹)
<P>¤Þ¤¿resolv.conf(ÌõÃí¡§ DNS¾ðÊó¤Ê¤É <CODE>/etc/resolv.conf</CODE>) ¤âÊѹ¹¤·
¾¤Î¥É¥á¥¤¥ó̾¤¬¤¢¤ë¥Õ¥¡¥¤¥ë¤ÏÁ´¤Æ°ÜÆ°¤·¤Æ¤¤¤Þ¤¹¡£Î㤨¤Ð
<CODE>/etc/hosts</CODE> ¤ä <CODE>/etc/HOSTNAME</CODE>¤Ê¤É¤Ç¤¹¡£
<P>
<P>virtexec¤Ë¥·¥ó¥Ü¥ê¥Ã¥¯¥ê¥ó¥¯¤ò¤Ï¤Ã¤Æ¤¤¤ë¥×¥í¥°¥é¥à¤Ï
<UL>
<LI> virtpasswd -- ¥Ñ¥¹¥ï¡¼¥ÉÊѹ¹</LI>
<LI> virtadduser -- ¥æ¡¼¥¶¡¼ÄɲÃ</LI>
<LI> virtdeluser -- ¥æ¡¼¥¶¡¼ºï½ü</LI>
<LI> virtsmbstatus -- samba status  </LI>
<LI> virtvi -- ¥Õ¥¡¥¤¥ë¤ÎÊÔ½¸</LI>
<LI> virtmailq -- mailq¤Î¥Á¥§¥Ã¥¯      </LI>
<LI> virtnewaliases -- ¥¨¥¤¥ê¥¢¥¹¥Æ¡¼¥Ö¥ëºÆ¹½ÃÛ</LI>
</UL>

¤Ç¤¹¡£
<P>
<P>
<HR>
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<A HREF="Virtual-Services-HOWTO-3.html">Á°¤Î¥Ú¡¼¥¸</A>
<A HREF="Virtual-Services-HOWTO.html#toc4">Ìܼ¡¤Ø</A>
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