Least Privilege(ºÇ¾®ÆÃ¸¢µ¡Ç½)¤ÇApache2¤ò´°Á´¤ËÈóÆÃ¸¢¥æ¡¼¥¶¤Ç¼Â¹Ô¤¹¤ë¡£
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#
more /etc/release
Solaris 10 3/05 s10_74L2a SPARC
Copyright
2005 Sun Microsystems, Inc. All Rights Reserved.
Use is subject to license terms.
Assembled 22 January 2005
#
uname -a
SunOS s10test 5.10 Generic sun4u sparc SUNW,Ultra-5_10
¡ÚApache2¤Îµ¯Æ°¡Û
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Apache2¤Î¥Ð¡¼¥¸¥ç¥ó¤Ï2.0.52¤Î¤è¤¦¤À¡£
#
/usr/apache2/bin/httpd -v
Server version: Apache/2.0.52
Server built: Jan 8 2005 01:51:11
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#
svcprop -p start/exec apache2
/lib/svc/method/http-apache2\ start
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ͽÁÛÄ̤ê/etc/apache2/httpd.conf¤¬ÀßÄê¥Õ¥¡¥¤¥ë¤À¤Í¡£
#
more /lib/svc/method/http-apache2
#!/sbin/sh
...
...
APACHE_HOME=/usr/apache2
CONF_FILE=/etc/apache2/httpd.conf
PIDFILE=/var/run/apache2/httpd.pid
...
...
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¤¤¤Ä¤âÄÌ¤ê¥Æ¥ó¥×¥ì¡¼¥È¤ò¥³¥Ô¡¼¤·¤ÆServerName¤¯¤é¤¤¤ÏÊѹ¹¤·¤Þ¤·¤ç¤¦¤«¡£
¤Á¤Ê¤ß¤ËSolaris10¤ÎApache2¤Ï¼Â¹Ô¥æ¡¼¥¶¡¢¥°¥ë¡¼¥×¤Ïwebservd(80)¤Î¸¢¸Â¤Çư¤¯¡£
(80È֥ݡ¼¥È¤ò¥Ð¥¤¥ó¥É¤¹¤ë¥á¥¤¥ó¤Î¥Ç¡¼¥â¥ó¤Ï¥Ç¥Õ¥©¥ë¥È¤Ç¤Ïroot¸¢¸Â)
#
cd /etc/apache2
#
ls
highperformance-std.conf
httpd.conf-example
ssl-std.conf
highperformance.conf
magic
ssl.conf
httpd-std.conf
mime.types
#
cp httpd.conf-example httpd.conf
#
vi httpd.conf
...
User webservd
Group webservd
...
ServerName
s10test
<--- ŬÅö¤Ë½¤Àµ
httpd.conf¤Î½¤Àµ¤ò¤·¤¿¤é¡¢¤¢¤È¤Ï°Ê²¼¤Î¤è¤¦¤Ëapache2¥µ¡¼¥Ó¥¹¤Îµ¯Æ°¤ò¤¹¤ë¡£
¢ª
¥µ¡¼
¥Ó¥¹¤Îµ¯Æ°ÊýË¡¤ÎÀâÌÀ¤Ï¤³¤Á¤é
#
svcadm enable apache2
#
svcs -a | grep apache2
online 17:30:38
svc:/network/http:apache2
#
svcs -p apache2
STATE
STIME FMRI
online 17:30:38
svc:/network/http:apache2
17:30:38 842 httpd
17:30:39 843 httpd
17:30:39 844 httpd
17:30:39 845 httpd
17:30:39 846 httpd
17:30:39 847 httpd
#
ps -ef | grep httpd
webservd 845 842 0 17:30:39
? 0:00
/usr/apache2/bin/httpd -k start
root
842 1 0 17:30:38
? 0:00
/usr/apache2/bin/httpd -k start
webservd 847 842 0 17:30:39
? 0:00
/usr/apache2/bin/httpd -k start
webservd 846 842 0 17:30:39
? 0:00
/usr/apache2/bin/httpd -k start
webservd 844 842 0 17:30:39
? 0:00
/usr/apache2/bin/httpd -k start
webservd 843 842 0 17:30:39
? 0:00
/usr/apache2/bin/httpd -k start
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Solaris10¤ÎLeast Privilegeµ¡Ç½¤ò»È¤Ã¤Æwebservd¤Ç¼Â¹Ô¤¹¤ë¤è¤¦¤ËÊѹ¹¤¹¤ë¡£
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¤Þ¤ºapache2¤Îmanifest¤Ë°Ê²¼¤Î¤è¤¦¤Ë¥¨¥ó¥È¥ê¤òÄɲ乤롣
net_privaddrÆÃ¸¢¤ÏÆÃ¸¢ÉÕ¤¥Ý¡¼¥ÈÈÖ¹æ¤Ë¥Ð¥¤¥ó¥É¤Ç¤¤ë¤è¤¦¤Ë¤·¤Þ¤¹¡£
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¤È¡¢"udp/tcp_extra_priv_ports" ¤È¥Þ¡¼¥¯¤µ¤ì¤Æ¤¤¤ë¥Ý¡¼¥È (NFS ¤Ç»ÈÍѤ¹¤ë¤¿¤á¤ËͽÌó¤µ¤ì¤Æ¤¤¤ë¥Ý¡¼¥È¤ò½ü¤¯)
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Least
Privilegeµ¡Ç½¤ÎÆÃ¸¢°ìÍ÷¤Ï¤³¤Á¤é
#
vi
/var/svc/manifest/network/http-apache2.xml
...
...
<exec_method
type='method'
name='start'
exec='/lib/svc/method/http-apache2 start'
timeout_seconds='60'>
<---
¤³¤³¤Î / ¤òºï½ü¤·°Ê²¼¤òÄɲÃ
<method_context>
<method_credential user="webservd"
group="webservd"
privileges="basic,net_privaddr" />
</method_context>
</exec_method>
¤½¤·¤Æ¾åµ¥Õ¥¡¥¤¥ë¤òimport¤¹¤ë¡£
#
svccfg import http-apache2.xml
#
svcadm restart apache2
#
svcs -a | grep apache2
maintenance 17:43:17 svc:/network/http:apache2
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¤·¤«¤·manifest¤Îµ½Ò¤ò´Ö°ã¤¨¤¿¤ï¤±¤Ç¤Ï¤Ê¤¤¤Î¤Ç¤´°Â¿´¤ò¡£
°Ê²¼¤Î¤è¤¦¤Ë¸¶°ø¤ò³Îǧ¤¹¤ë¤È¥¹¥¿¡¼¥È¥á¥½¥Ã¥ÉÃæ¤Ë¥¨¥é¡¼¤¬¤¢¤Ã¤¿Íͻҡ£
#
svcs -xv apache2
svc:/network/http:apache2 (Apache 2 HTTP server)
¾õÂÖ: 2005ǯ04·î01Æü (¶â) 17»þ43ʬ17Éà °Ê¹ßmaintenance¤Ç¤¹
¸¶°ø: ³«»Ï¥á¥½¥Ã¥É¤Ë·«¤êÊÖ¤·¼ºÇÔ¤·¤Þ¤·¤¿¡£ºÇ¸å¤Ï ¾õÂÖ 1 ¤Ç½ªÎ»¤·¤Þ¤·¤¿.
»²¾È: http://sun.com/msg/SMF-8000-KS
»²¾È: man -M /usr/share/man -s 1M apache2
»²¾È:
/var/svc/log/network-http:apache2.log
±Æ¶Á: ¤³¤Î¥µ¡¼¥Ó¥¹¤Ïưºî¤·¤Æ¤¤¤Þ¤»¤ó¡£
¤È¤¤¤¦¤ï¤±¤Ç¥µ¡¼¥Ó¥¹¤Î¥í¥°¥Õ¥¡¥¤¥ë¤ò³Îǧ¤·¤Æ¤ß¤ë¤È¡¢
apache¤Î¥í¥°¥Õ¥¡¥¤¥ë¤Ø¤Î¥Ñ¡¼¥ß¥Ã¥·¥ç¥ó¤¬¤Ê¤«¤Ã¤¿¤ß¤¿¤¤¡£
#
tail
/var/svc/log/network-http:apache2.log
Unable to open logs
[ 4·î 1 17:43:16 Method "start" exited with status 1 ]
[ 4·î 1 17:43:16 Executing start method
("/lib/svc/method/http-apache2 start") ]
(13)Permission denied: httpd: could not open error log file
/var/apache2/logs/error_log.
Unable to open logs
[ 4·î 1 17:43:16 Method "start" exited with status 1 ]
[ 4·î 1 17:43:16 Executing start method
("/lib/svc/method/http-apache2 start") ]
(13)Permission denied: httpd: could
not open error log file /var/apache2/logs/error_log.
Unable to open logs
[ 4·î 1 17:43:17 Method "start" exited with status 1 ]
°Ê²¼¤Î¤è¤¦¤Ë¥Ñ¡¼¥ß¥Ã¥·¥ç¥ó¤ò³Îǧ¤·¤Æwebservd¤ËÊѹ¹¤·¤Æ¤ß¤ë¡£
#
cd /var/apache2/logs
#
ls -l
¹ç·× 2
-rw-r--r-- 1
root
root
0 4·î 1Æü 17:30 access_log
-rw-r--r-- 1
root
root
717 4·î 1Æü 17:43 error_log
#
chown webservd:webservd *
#
ls -l
¹ç·× 2
-rw-r--r-- 1
webservd
webservd 0 4·î
1Æü 17:30 access_log
-rw-r--r-- 1
webservd
webservd 717 4·î 1Æü
17:43 error_log
maintenance¥¹¥Æ¡¼¥¿¥¹¤ò¥¯¥ê¥¢¤·¤Æ¤â¤¦°ìÅÙµ¯Æ°¤Ë¥Á¥ã¥ì¥ó¥¸¡£
#
svcadm clear apache2
#
svcadm enable apache2
#
svcs apache2
STATE
STIME FMRI
offline* 17:53:01
svc:/network/http:apache2
#
svcs apache2
STATE
STIME FMRI
online* 17:53:03
svc:/network/http:apache2
#
svcs apache2
STATE
STIME FMRI
online 17:53:04
svc:/network/http:apache2
#
svcs apache2
STATE
STIME FMRI
online* 17:53:05
svc:/network/http:apache2
#
svcs apache2
STATE
STIME FMRI
offline* 17:53:05
svc:/network/http:apache2
#
svcs apache2
STATE
STIME FMRI
online* 17:53:07
svc:/network/http:apache2
#
svcs apache2
STATE
STIME FMRI
online 17:53:08
svc:/network/http:apache2
¤à¤à¤Ã¡ª¤É¤¦¤â¥Ç¡¼¥â¥ó¤¬¸«¤¨¤Ê¤¤¤È»×¤Ã¤¿¤é¡¢
²¿¤ä¤éµ¯Æ°¡õÄä»ß¤¬¥ë¡¼¥×¤·¤Æ¤¤¤ë¤ß¤¿¤¤¤À¡£
°Ê²¼¤Î¤è¤¦¤Ë¥í¥°¥Õ¥¡¥¤¥ë¤ò¤ß¤ë¤ÈPID¥Õ¥¡¥¤¥ë¤Ë´Ø·¸¤¢¤ê¤½¤¦¤À¡£
#
tail
/var/svc/log/network-http:apache2.log
httpd (no pid file) not running
[ 4·î 1 17:56:15 Method "stop" exited with status 0 ]
[ 4·î 1 17:56:15 Executing start method
("/lib/svc/method/http-apache2 start") ]
[ 4·î 1 17:56:16 Method "start" exited with status 0 ]
[ 4·î 1 17:56:17 Stopping because all processes in service
exited. ]
[ 4·î 1 17:56:17 Executing stop method
("/lib/svc/method/http-apache2 stop") ]
httpd (no pid file) not running
[ 4·î 1 17:56:17 Method "stop" exited with status 0 ]
[ 4·î 1 17:56:17 Executing start method
("/lib/svc/method/http-apache2 start") ]
[ 4·î 1 17:56:18 Method "start" exited with status 0 ]
¼¡¤Î¤è¤¦¤ËApache2¤Î¥¨¥é¡¼¥í¥°¥Õ¥¡¥¤¥ë¤â³Îǧ¤·¤Æ¤ß¤ë¡£
¤Ê¤ó¤È¡¢httpd.pid¥Õ¥¡¥¤¥ë¤ÎºîÀ®¤Ë¼ºÇÔ¤·¤Æ¤¤¤ë¤¸¤ã¤Ê¤¤¤«¡£
¤è¤¯¹Í¤¨¤ì¤Ðwebservd¸¢¸Â¤Ç¼Â¹Ô¤·¤Æ¤¤¤ë¤Î¤ÇÅö¤¿¤êÁ°¤À¤¬
¤Þ¤Ã¤¿¤¯À¤Ï䬤䤱¤ë¤Í¡£
#
tail /var/apache2/logs/error_log
[Fri Apr 01 17:57:56 2005] [notice] Digest: generating secret for
digest authentication ...
[Fri Apr 01 17:57:56 2005] [notice] Digest: done
[Fri Apr 01 17:57:57 2005] [error]
(13)Permission denied: could not create /var/run/apache2/httpd.pid
[Fri Apr 01 17:57:57 2005] [error]
httpd: could not log pid to file /var/run/apache2/httpd.pid
[Fri Apr 01 17:57:58 2005] [notice] Digest: generating secret for
digest authentication ...
[Fri Apr 01 17:57:58 2005] [notice] Digest: done
[Fri Apr 01 17:57:59 2005] [error]
(13)Permission denied: could not create /var/run/apache2/httpd.pid
[Fri Apr 01 17:57:59 2005] [error]
httpd: could not log pid to file /var/run/apache2/httpd.pid
[Fri Apr 01 17:58:00 2005] [notice] Digest: generating secret for
digest authentication ...
[Fri Apr 01 17:58:00 2005] [notice] Digest: done
¤È¤¤¤¦¤ï¤±¤Ç/var/run/apache2¤Î¥Ñ¡¼¥ß¥Ã¥·¥ç¥ó¤ò³Îǧ¡£
¤ä¤Ã¤Ñ¤ê¤À¡¦¡¦¡¦¡£
#
cd /var/run
#
ls -l
¹ç·× 128
drwxr-xr-x 2 root
root 117 4·î
1Æü 17:22 apache
drwxr-xr-x 2
root
root 117 4·î
1Æü 17:43 apache2
drwx------ 2 root
root 419 3·î
30Æü 10:42 atokserver
drwxr-xr-x 2 daemon
daemon 117 3·î 30Æü 10:42
daemon
srwxrwxrwx 1 root
root
0 3·î 30Æü 10:42 jd_sockV6
Dr--r--r-- 1 daemon
daemon 0 3·î
30Æü 10:42 kcfd_door
-rw-r--r-- 1 root
root
0 3·î 30Æü 10:42 metaset.265
Dr--r--r-- 1 root
root
0 3·î 30Æü 10:42 name_service_door
-rw-r--r-- 1 root
root
0 3·î 30Æü 10:42 nfs4_domain
Dr--r--r-- 1 root
root
0 3·î 30Æü 10:42 picld_door
-r--r--r-- 1 root
root
4 3·î 30Æü 10:42 powerd.pid
drwxrwxrwt 2 root
root 186 3·î
30Æü 10:42 rpc_door
drwxr-xr-x 3 root
root 191 3·î
30Æü 10:42 sysevent_channels
-rw-r--r-- 1 root
root
4 3·î 30Æü 10:42 syslog.pid
Drw-r--r-- 1 root
root
0 3·î 30Æü 10:42 syslog_door
°Ê²¼¤Î¤è¤¦¤ËÊѹ¹¤¹¤ì¤Ð¡¢¥Ð¥Ã¥Á¥ê¤Î¤Ï¤º¡£
#
chown webservd:webservd apache2
#
ls -ld apache2
drwxr-xr-x 2
webservd
webservd 183 4·î 1Æü
18:02 apache2
ǰ¤Î¤¿¤áapache2¤òdisable¤Ë¤·¤Æ¤«¤éenable¤Ë¤·¤ÆÆ°ºî³Îǧ¡£
#
svcadm disable apache2
#
svcs apache2
STATE
STIME FMRI
disabled 18:03:50
svc:/network/http:apache2
#
svcadm enable apache2
#
svcs -p apache2
STATE
STIME FMRI
online 18:04:04
svc:/network/http:apache2
18:04:04 5220 httpd
18:04:05 5221 httpd
18:04:05 5222 httpd
18:04:05 5223 httpd
18:04:05 5224 httpd
18:04:05 5225 httpd
º£Å٤Ϥ¦¤Þ¤¯Æ°¤¤¤Æ¤¤¤ëÍͻҡ£
¤·¤«¤â°Ê²¼¤ÎÄ̤ꤹ¤Ù¤Æ¤Î¥×¥í¥»¥¹¤¬webservd¤Ç¼Â¹Ô¤µ¤ì¤Æ¤¤¤ë¡£
#
ps -ef | grep apache2
webservd 5223 5220 0 18:04:05
? 0:00
/usr/apache2/bin/httpd -k start
webservd 5222 5220 0 18:04:05
? 0:00
/usr/apache2/bin/httpd -k start
webservd 5221 5220 0 18:04:05
? 0:00
/usr/apache2/bin/httpd -k start
webservd 5224 5220 0 18:04:05
? 0:00
/usr/apache2/bin/httpd -k start
webservd
5220 1 0 18:04:04
? 0:00
/usr/apache2/bin/httpd -k start
webservd 5225 5220 0 18:04:05
? 0:00
/usr/apache2/bin/httpd -k start
¤·¤«¡¼¤·¡¢¼Â¤Ï¤³¤ì¤Ç¤â¥À¥á¤Ê¤Î¤è¡£
¸ÌÀ¤Ê¿Í¤Ê¤é¤ï¤«¤ë¤Ï¤º¤À¤±¤É¡¢/var/run/apache2¤Î¥Ñ¡¼¥ß¥Ã¥·¥ç¥óÊѹ¹¤ò¤·¤Æ¤â¡¢
Solaris¤Î/var/run¤Ïtmpfs¤Ê¤Î¤ÇºÆµ¯Æ°¤¹¤ë¤È¤¹¤Ù¤Æ¤Î¥Õ¥¡¥¤¥ë¤¬¾Ã¤¨¤ë¤ï¤±¤µ¡£
¤È¤¤¤¦¤³¤È¤Ï¡¢¾åµÀßÄê¤ÇºÆµ¯Æ°¤¹¤ì¤Ð¡¢·ë¶É¤ÏƱ¤¸¤³¤È¤Î·«¤êÊÖ¤·¤Ë¤Ê¤ë¤ï¤±¡£
¤Ê¤Î¤ÇÌÌÅݽ¤¤¤±¤É¡¢apache2¤ÎÀßÄê¥Õ¥¡¥¤¥ë¦¤ÇPID¥Õ¥¡¥¤¥ë¤ÎÀ¸À®¾ì½ê¤òÊѹ¹¤·¤Ê¤¤¤È¥À¥á¤ß¤¿¤¤¡£
#
vi /etc/apache2/httpd.conf
...
<IfModule !mpm_netware.c>
#PidFile
/var/run/apache2/httpd.pid
PidFile /var/apache2/run/httpd.pid
</IfModule>
...
ÅöÁ³¡¢¾åµÀßÄê¤ÎÄ̤ê/var/apache2¥Ç¥£¥ì¥¯¥È¥ê¤Ëwebservd¤¬¥ª¡¼¥Ê¡¼¤Îrun¥Ç¥£¥ì¥¯¥È¥ê¤òºîÀ®¤¹¤ë¡£
#
mkdir /var/apache2/run
#
chown webservd:webservd
/var/apache2/run
¤µ¤é¤Ëapache2¤ÎÀ©¸æ¥¹¥¯¥ê¥×¥È¤Ç¤¢¤ë /lib/svc/method/http-apache2 ¤ò°Ê²¼¤Î¤è¤¦¤Ë½¤Àµ¤¹¤ë¡£
#
vi /lib/svc/method/http-apache2
...
. /lib/svc/share/smf_include.sh
APACHE_HOME=/usr/apache2
CONF_FILE=/etc/apache2/httpd.conf
#PIDFILE=/var/run/apache2/httpd.pid
PIDFILE=/var/apache2/run/httpd.pid
[ ! -f ${CONF_FILE} ] && exit $SMF_EXIT_ERR_CONFIG
case "$1" in
start)
/bin/rm -f ${PIDFILE}
#
/bin/mkdir -p /var/run/apache2 <---
¤³¤Îºî¶È¤¬ÉÔÍפˤʤ俤Τǥ³¥á¥ó¥È¥¢¥¦¥È
ssl=`svcprop -p httpd/ssl
svc:/network/http:apache2`
...
¤³¤ì¤Ç³µ¤ÍÌäÂê¤Ê¤¤¤Ï¤º¤À¤¬¡¢svcadm¥³¥Þ¥ó¥É¤Çapache2¤òenable¤Ë¤·¤Æ¤â¤Þ¤À¡¢µóư¤¬²ø¤·¤¤¡£
/var/apache2/logs/error_log¤Ç³Îǧ¤¹¤ë¤È°Ê²¼¤Î¤è¤¦¤Ë¤Ê¤Ã¤Æ¤¤¤¿¡£
#
tail /var/apache2/logs/error_log
...
[Fri Apr 01 18:08:04 2005] [notice] Digest: done
[Fri Apr 01 18:08:05 2005] [emerg] (2)No such file or directory:
Couldn't create accept lock
[Fri Apr 01 18:08:06 2005] [notice] Digest: generating secret for
digest authentication ...
[Fri Apr 01 18:08:06 2005] [notice] Digest: done
[Fri Apr 01 18:08:07 2005] [emerg] (2)No such file or directory:
Couldn't create accept lock
¤È¤¤¤¦¤ï¤±¤Ç¤Þ¤¿¤â¤ähttpd.conf¤ÎÊÔ½¸¤Ç¡¢°Ê²¼¤Î¤è¤¦¤Ë¤·¤Æ¤ß¤¿¡£
...
<IfModule !mpm_netware.c>
#LockFile /var/apache2/logs/accept.lock
LockFile /var/apache2/logs/accept.lock
</IfModule>
...
¤³¤ì¤Ç¤â¤¦°ìÅÙapache2¤ò¥ê¥¹¥¿¡¼¥È¤¹¤ë¤È¥¨¥é¡¼¥í¥°¤Ï°Ê²¼¤Î¤è¤¦¤Ë¤Ê¤ê¡¢OK¤½¤¦¤À¡£
#
tail /var/apache2/logs/error_log
...
[Fri Apr 01 18:10:00 2005] [notice] Digest: done
[Fri Apr 01 18:10:01 2005] [notice] Apache/2.0.52 (Unix) DAV/2
configured -- resuming normal operations
¥·¥¹¥Æ¥àºÆµ¯Æ°¸å¤â°Ê²¼¤Î¤è¤¦¤Ëps¥³¥Þ¥ó¥É¤Ç¥Ç¡¼¥â¥ó¤ò³Îǧ¤·¤Æ¤âÀµ¾ï²ÔƯ¤¬³Îǧ¤Ç¤¤¿¡£
#
ps -ef | grep apache2
webservd 5223 5220 0 18:14:05
? 0:00
/usr/apache2/bin/httpd -k start
webservd 5222 5220 0 18:14:05
? 0:00
/usr/apache2/bin/httpd -k start
webservd 5221 5220 0 18:14:05
? 0:00
/usr/apache2/bin/httpd -k start
webservd 5224 5220 0 18:14:05
? 0:00
/usr/apache2/bin/httpd -k start
webservd
5220 1 0 18:14:04
? 0:00
/usr/apache2/bin/httpd -k start
webservd 5225 5220 0 18:14:05
? 0:00
/usr/apache2/bin/httpd -k start
¤Õ¤¥¡Á¤ä¤Ã¤È¤¦¤Þ¤¯¤¤¤Ã¤¿¤«¤Ê¡£
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sendmail¤Ê¤É¤Î¥Ç¡¼¥â¥ó¤Ç¤âÀßÄê¤Ç¤¤ë¤Ï¤º¡£
Ãí°Õ¥Ý¥¤¥ó¥È¤ÏPID¥Õ¥¡¥¤¥ë¤ä¥í¥°¥Õ¥¡¥¤¥ë¤ÎÃÖ¤¾ì¤Î¥Ñ¡¼¥ß¥Ã¥·¥ç¥ó¤À¤Í¡£
¡Ú¥¢¥ó¥±¡¼¥È¡Û
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