| Chroot LinuxÖÐËùÓеķþÎñ [message #168471] |
Mo, 06 März 2006 07:43 |
|
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Syslogd ·Ö±ðºÍÿһ¸ö·þÎñÒ»ÆðÔËÐÐÔÚhroot»·¾³Ï¡£
Apache ÔËÐÐÔÚ/chroot/httpdÏÂ.
Ssh ÔËÐÐÔÚ/chroot/sshdÏÂ.
PostgreSQL ÔËÐÐÔÚ/chroot/postmasterÏÂ.
Sendmail ÔËÐÐÔÚ chroot»·¾³Ï£¬µ«²»ÐÒµÄÊÇ£¬Ëü±ØÐëÒÔrootȨÏÞÔËÐС£
ntpd ÔËÐÐÔÚ /chroot/ntpdÏ¡£
named ÔËÐÐÔÚ /chroot/named Ï¡£
ÿһ¸ö·þÎñ¶¼ÊÇÍêÈ«ÓëÍâ½ç¸ôÀëµÄ¡£
ÎÒÓÃÀ´´´½¨chroot»·¾³µÄPerl½Å±¾¡£
ÏÂÔØConfig_Chroot.pl.txt²¢¸üÃûΪ Config_Chroot.pl. Õâ¸öPerl½Å±¾ÈÃÄãÁгöËùÓÐÒÑ°²×°µÄ·þÎñ£¬²é¿´ÅäÖÃÎļþ£¬ÅäÖ÷þÎñ £¬²¢Æô¶¯ºÍÍ£Ö¹·þÎñ¡£Í¨³££¬Õâ¾ÍÊÇÄãÓ¦¸Ã×öµÄ¡£
´´½¨chrootĿ¼
mkdir -p /chroot/Config/Backup
ÏÂÔØConfig_Chroot.pl.txt ²¢¸üÃûΪ /chroot/Config_Chroot.pl
Èç¹ûÄãµÄ¼ÒĿ¼£¨home directory£©²»ÊÇ/chroot£¬Çë°ÑPerl½Å±¾ÀïµÄ$Home ±äÁ¿×÷ÏàÓ¦µÄ¸Ä±ä¡£
ÏÂÔØÎÒµÄÅäÖÃÎļþ¡£
ÏÖÔÚ£¬ÖØÒªµÄÊÇ£ºÎÒÖ»ÔÚ RedHat 7.2 ºÍ RedHat 6.2 ÉϲâÊÔ¹ý¡£.
ÇëÔÚPerl½Å±¾Àï×÷ÏàÓ¦µÄ¸Ä±äÒÔÊÊÓ¦ÄãµÄ·¢Ðа档
¹ØÓÚchroot£¬ÎÒдÁËÒ»±éºÜ³¤µÄÎÄÕ£¬µ«ÓÐÁËÎҵĽű¾£¬Ëü±äµÃ¶ÌÁË ºÜ¶à¡£ÔÚchrootÁ˺ܶà·þÎñÖ®ºó£¬ÎÒ×¢Òâµ½ÕâЩ·þÎñÖÐÐèÒª±»chroot µÄÎļþºÍÅäÖö¼ºÜÏàËÆ¡£¶ÔÒ»¸öÌض¨µÄ·þÎñÀ´Ëµ£¬ÅжÏÄÄЩÎļþÐèÒª ¿½±´µÄ×îÈÝÒ׵ķ½·¨ÊDz鿴man£¬Èç¹û³ÌÐòÒªÓõ½¿âÎļþ£¬¾ÍÔÙ¼üÈë¡ °ldd /usr/bin/file¡°¡£Ä㻹¿ÉÒÔ°ÑÄãÕýÔÚ°²×°µÄ·þÎñ½øÐÐchroot²¢ÊÖ¶¯Æ ô¶¯£¬ ¿´¿´³öÁËʲô´í»ò²éÒ»²éËüµÄÈÕÖ¾Îļþ¡£
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cd /chroot
/Config_Chroot.pl config SERVICE
/Config_Chroot.pl install SERVICE
/Config_Chroot.pl start SERVICE
¶Ô Ntpd ½øÐÐ Chroot
Ntpd ÊÇÒ»¸öʱ¼ä·þÎñ£¬ËüʹÄãµÄ¼ÆËã»úÒÔ¼°ÆäËü¼ÆËã»úºÍʵ¼Êʱ¼äͬ²½¡£ °ÑËüchrootÊǺܼòµ¥µÄ¡£
cd /chroot
# Èç¹ûÄãûÓÐʹÓÃÎÒµÄÅäÖÃÎļþ£¬Çë°ÑÏÂÒ»ÐеÄ×¢ÊÍÈ¥µô¡£
#./Config_Chroot.pl config ntpd
/Config_Chroot.pl install ntpd
/Config_Chroot.pl start ntpd
¶Ô DNS ºÍ named ½øÐÐ Chroot
ÒѾÓÐÁËhowtoÎļþ£¬Çë¿´
http://www.linuxdoc.org/HOWTO/Chroot-BIND8-HOWTO.html
»ò
http://www.linuxdoc.org/HOWTO/Chroot-BIND-HOWTO.html
Èç¹ûÄãÏëÓÃÎҵĽű¾
cd /chroot
# Èç¹ûÄãûÓÐʹÓÃÎÒµÄÅäÖÃÎļþ£¬Çë°ÑÏÂÒ»ÐеÄ×¢ÊÍÈ¥µô¡£
#./Config_Chroot.pl config named
/Config_Chroot.pl install named
/Config_Chroot.pl start named
°Ñ Syslog ºÍÆäËû·þÎñÒ»Æð½øÐÐchrootÒÔ¼°ÎÒËùÓöµ½µÄÀ§ÄÑ¡£
ÎÒÏë°Ñsyslogd½øÐÐchroot¡£ÎÒÓöµ½µÄÀ§ÄÑÊÇ£¬syslogdĬÈÏʹÓÃ/dev /logĿ¼£¬¶øchrootÁ˵ķþÎñÊÇ¿´²»¼ûÕâ¸öĿ¼µÄ¡£Òò´Ë£¬ÓÃsyslog d×öÈÕÖ¾¼Ç¼¾Í²»ÊǺܷ½±ãÁË¡£ÏÂÃæÊÇ¿ÉÄܵĽâ¾ö·½°¸¡£
°Ñsyslogd·Ö±ðºÍÿһ¸ö·þÎñ½øÐÐchroot¡£ÎÒʵ¼ÊÉϾÍÊÇÕâÑù²âÊԵģ ¬¶øÇҼǼÁËһЩÈÕÖ¾¡£ÎÒ²»Ï²»¶ÕâÑù×ö£¬ÒòΪÎÒÓÐÒ»¸öÒÔrootȨÏÞÔ ËÐеķþÎñ¡£
¿´¿´ÎÒÃÇÊÇ·ñÄÜÁ¬½Óµ½ÍⲿÈÕÖ¾¼Ç¼É豸¡£
Ö±½Ó°ÑÈÕÖ¾¼Ç¼µ½ÎļþÉ϶ø²»ÊÇͨ¹ýsyslogd¡£Õâ¿ÉÄÜÊÇ×îºÃµÄ°²È«Ñ ¡ÔñÁË£¬¾¡¹ÜÈç¹û±»ÈëÇÖ£¬ÈëÇÖÕß¿ÉÒÔËæÒâ¸Ä¶¯ÈÕÖ¾¡£
ÅäÖÃsyslogdÀ´²é¿´¼¸¸öµØ·½£¬´Ó¶øµÃµ½ËùÓеķþÎñ£¬Äã¿ÉÒÔÓÃsyslo gdµÄ-aÑ¡ÏîÀ´×öµ½¡£
ÎÒµÄΨһµÄ½â¾ö·½°¸ÊÇÈ·±£syslogd·Ö±ðºÍÿһ¸ö·þÎñ½øÐÐchroot¡£Î Òϲ»¶ÕâÑùµÄ½â¾ö·½°¸£¬ËüÒÔ·ÇrootȨÏÞÔÚ×Ô¼ºµÄchroot»·¾³£¨ÓÐÐ©Ï ñÍøÂç¶Ë¿Ú£©Ï¼Ç¼ÈÕÖ¾¡£ÕâÒ²ÐíÊÇ¿ÉÐеģ¬µ«ÎÒÕýÔÚÍ£Ö¹ÎÒËù×öµÄ£ ¬È»ºóÑ°ÇóÒ»¸ö¸üºÃµÄ½â¾ö·½°¸¡£
Èç¹ûÄã²»ÏëΪÿһ¸ö·þÎñ¶¼Å䱸һ¸ö¶ÀÁ¢µÄsyslogd£¬ÄÇôµ±ÄãµÄÏµÍ ³ÔËÐÐsyslogdʱ£¬ÇëÔÚsyslogd¿ªÊ¼Ê±ÔËÐÐÏÂÃæÃüÁ
syslogd -a /chroot/SERVICE/dev/log
Èç¹ûÓÐsshºÍdnsÒªÔËÐУ¬ÄÇô¿´ÉÏÈ¥Ó¦¸ÃÏñÕâÑù£º
syslogd -a /chroot/ssh/dev/log -a /chroot/named/dev/log -a /dev/log
¹ØÓÚsyslogd£¬ÎÒ×îºóÏë˵µÄÊÇ£¬ÎÒÏ£ÍûËüÄÜÔËÐÐÔÚ·ÇrootÕË»§Ï¡£Î ÒÊÔÁ˼¸¸ö¼òµ¥µÄ¶«Î÷£¬µ«¶¼Ã»Óгɹ¦£¬ÓÚÊǾͷÅÆúÁË¡£Èç¹ûÄÜÈÃsys logdºÍÿһ¸ö·þÎñÒ»ÆðÔËÐÐÔÚ·ÇrootÕË»§Ï£¬ÎҾͻá¶ÔÎҵݲȫ´ëÊ© ¸Ðµ½ÂúÒâÁË¡£Èç¹û¿ÉÄܵĻ°£¬×îºÃ½«ÈÕÖ¾¼Ç¼µ½ÍⲿÉ豸ÉÏ¡£
¶Ô Apache ½øÐÐ Chroot
ºÜ¼òµ¥¡£Ò»µ©ÎÒÔËÐÐËü£¬¾Í¿ÉÒÔÖ´ÐÐPerl½Å±¾¡£ÏÖÔÚ£¬ÎÒµÄÅäÖÃÎļþ ÊǺܳ¤µÄ£¬ÒòΪÎÒ±ØÐëÔÚchroot»·¾³Ï°üÀ¨PerlºÍPostgreSQLº¯Êý¿â ¡£ÓÐÒ»¼þÊÂҪעÒ⣬Èç¹ûÄãÒªÁ¬½Óµ½Êý¾Ý¿âÉÏ£¬ÇëÈ·±£ÄãµÄÊý¾Ý¿â·þ ÎñÔËÐÐÔÚ127.0.0.1 »Ø»·É豸ÉÏ£¬²¢ÔÚ¹ØÓÚDBIµÄPerl½Å±¾ÖÐÖ¸¶¨Ö÷»úΪ127.0.0.1. ÏÂÃæÊÇÎÒÔõÑù°ÑapacheÓÀ¾ÃÁ¬½Óµ½Ò»¸öÊý¾Ý¿âÉϵÄÀý×Ó£º
$dbh ||= DBI->connect(\'dbi:Pg:dbname=DATABASE\',\"\",\"\", {PrintError=>0});
if ($dbh ) {$dbh->{PrintError} = 1;}
else
{$dbh ||= DBI->connect(\'dbi:Pg:dbname=DATABASE;host=127.0.0.1\',\"\ ",\"\",
{PrintError=>1});}
Ô´µØÖ·: http://httpd.apache.org/dist/httpd/
°Ñapache±àÒë²¢°²×°ÔÚÄãϵͳµÄ/usr/local/apacheĿ¼Ï£¬È»ºóÔËÐ ÐPerl½Å±¾¡£
cd /chroot
# Èç¹ûÄãûÓÐʹÓÃÎÒµÄÅäÖÃÎļþ£¬Çë°ÑÏÂÒ»ÐеÄ×¢ÊÍÈ¥µô¡£
# ./Config_Chroot.pl config httpd
/Config_Chroot.pl install httpd
/Config_Chroot.pl start httpd
ÔÚhttpd.confÎļþÀï°üº¬ÒÔϼ¸ÐÐ:
ExtendedStatus On
<Location /server-status>
SetHandler server-status
Order deny,allow
Deny from all
Allow from 127.0.0.1
</Location>
<Location /server-info>
SetHandler server-info
Order deny,allow
Deny from all
Allow from 127.0.0.1
</Location>
È»ºó£¬ÔÚÄãµÄä¯ÀÀÆ÷ÀïÊäÈë http://127.0.0.1/server-status »ò http://127.0.0.1/server-info ²¢¼ì²é£¡
¶Ô Ssh ½øÐÐ Chroot
Ê×ÏÈ£¬Èç¹û°Ñssh´Ó¶Ë¿Ú22Öض¨Ïòµ½2222¾ÍÀíÏëÁË¡£È»ºó£¬µ±ÄãÆô¶¯s shʱ£¬ÈÃËüÔÚÒ»¸ö·ÇrootÕË»§Ï¼àÌý2222¶Ë¿Ú¡£ÔÚ³õʼ»¯sshÁ¬½Óʱ£ ¬ÎÒÃÇÖ»ÏëÈÃÓÐÃÜÂëµÄ°²È«ÕË»§Á¬½øÀ´£¬µ«²»×öÆäËûÈκÎÊÂÇé¡£ÔÚËûà ǵǼ֮ºó£¬ÔËÐÐÔڶ˿Ú127.0.0.1:2222 µÄµÚ¶þ¸össh³ÌÐòÈÃËüÃÇÁ¬½Óµ½ÕæÕýµÄϵͳ -- ÕâµÚ¶þ¸össh³ÌÐòÓ¦¸ÃÖ»Ôڻػ·É豸ÉϼàÌý¡£Õâ²ÅÊÇÄãÓ¦¸Ã×öµÄ¡£ÏÖÔ ÚÎÒÃDz»´òËãÈ¥×ö¡£ÎÒÃÇÒª×öµÄΨһµÄÊÂÇéÊÇÒÔÕâ¸öchrootµÄssh×ö¸ö Àý×Ó¡£ÉÏÃæÌáµ½µÄÒ»¸öÁ·Ï°¾ÍÇë¶ÁÕß×Ô¼ºÍê³É£ºÈÃsshdÔËÐÐÔÚ·Çroot ÕË»§Ï£¬ÔÙ°²×°µÚ¶þ¸ö¼àÌý»Ø»·É豸µÄsshdÒÔʹÈËÃÇÁ¬½øÕæÕýµÄϵͳ ¡£
´ËÍ⣬ÎÒÃÇÖ»Òª°Ñssh½øÐÐchroot²¢ÈÃÄã¿´Ò»¿´ÄÇÑù×öµÄ½á¹û£¨Èç¹ûÄ ãÖ»×öÁËÕâЩ£¬Äã²»±Ø¹Û²ìÕû¸öϵͳ£©¡£µ±È»£¬Èç¹ûÄÜ°ÑÈÕÖ¾¼Ç¼ÔÚÍ â²¿É豸ÉϾ͸üºÃÁË¡£ÎÒÃÇÓ¦¸ÃÓÃOpenSSH£¬µ«ÎªÁË·½±ã£¨ÕâºÃÏñ²»ÊÇ Ò»¸öºÃµÄ½è¿Ú£©£¬ÎÒÓõÄÊÇÒ»¸öÉÌÒµµÄSSH¡£
Ô´µØÖ·: http://www.ssh.com/products/ssh/download.cfm
ÔÚ/usr/local/ssh_chrootÏ°²×°ssh²¢ÔËÐнű¾¡£
cd /chroot
# Èç¹ûÄãûÓÐʹÓÃÎÒµÄÅäÖÃÎļþ£¬Çë°ÑÏÂÒ»ÐеÄ×¢ÊÍÈ¥µô¡£
# ./Config_Chroot.pl config sshd
/Config_Chroot.pl install sshd
/Config_Chroot.pl start sshd
ÎÒ¾õµÃ°Ñssh·ÅÔÚchroot»·¾³ÏµÄÒ»¸öÕæÕýÓÐÒæµÄÊÂÇéÊÇ£¬Èç¹ûÄãÓÃË ü´úÌæftp·þÎñÆ÷£¬ÈËÃÇÔÚÄãµÄÇøÓòÀï¾ÍÖ»ÓÐÓÐÏÞµÄȨÏÞ¡£ Rsync ºÍ SCP ÔÚÈËÃÇÉÏ´«ÎļþʱÔËÐе÷dz£ºÃ¡£ÎÒ²»ÊǺÜϲ»¶½¨Á¢ftp·þÎñÆ÷ÈÃÈËà ǵǼ¡£ºÜ¶àftp·þÎñÆ÷¶¼ÔËÐÐÔÚchroot»·¾³Ï£¬µ«ÎÒ²»Ï²»¶ËûÃÇÈÔ¾É ´«ËÍÃ÷ÎÄÃÜÂë¡£
°Ñ PostSQL ½øÐÐ Chroot
Õ⼸ºõºÍperlÒ»Ñù¼òµ¥£¬³ýÁËËüÐèҪһЩ¶îÍâµÄº¯Êý¿â¡£×ܵÄÀ´Ëµ£¬ Õâ²¢²»ÄÑ×ö¡£ÎÒ±ØÐë×öµÄÒ»¼þÊÂÊÇ°ÑPostgreSQL·ÅÔÚÍøÂçÉÏ£¬µ«½ö½ö ÊÇ·ÅÔڻػ·É豸ÉÏ¡£ÒòΪËüÊDZ»chrootÁ˵ģ¬ËùÒÔÆäËûÒѾchrootÁË µÄ·þÎñÊDz»ÄܺÍËü½Ó´¥µÄ£¬¾ÍÏñweb·þÎñÆ÷ apache Ò»Ñù¡£ÎÒ°ÑPerl±àÒë½øPostgreSQLÀïÈ¥ÁË£¬Òò´ËÎÒ±ØÐëÔÚÎÒµÄÅäÖÃÎÄ ¼þÀï¼ÓºÜ¶àPerlµÄ¶«Î÷¡£
Ô´´úÂë: ftp://ftp.us.postgresql.org/source/v7.1.3/postgresql-7.1.3.t ar.gz
°Ñapache±àÒë²¢°²×°ÔÚÄãϵͳÀïµÄ/usr/local/postgresĿ¼Ï¡£È»º óÔËÐÐPerl½Å±¾¡£
cd /chroot
# Èç¹ûÄãûÓÐʹÓÃÎÒµÄÅäÖÃÎļþ£¬Çë°ÑÏÂÒ»ÐеÄ×¢ÊÍÈ¥µô¡£
# ./Config_Chroot.pl config postgres
/Config_Chroot.pl install postgres
/Config_Chroot.pl start postgres
°Ñ Sendmail ½øÐÐ Chroot
ÇëÖ´ÐÐÎÒµÄPerl½Å±¾¡£
cd /chroot
# Èç¹ûÄãûÓÐʹÓÃÎÒµÄÅäÖÃÎļþ£¬Çë°ÑÏÂÒ»ÐеÄ×¢ÊÍÈ¥µô¡£
# ./Config_Chroot.pl config sendmail
/Config_Chroot.pl install sendmail
/Config_Chroot.pl start sendmail
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ºÃÔÚÄãËæʱ¿ÉÒÔ·¢ËÍÓʼþ£¬µ±ÄãÊÕÐŵÄʱºò²Å»á³öÎÊÌâ¡£Òò´Ë£¬ÎÒ¿É ÒÔ°ÑsendmailºÍapacheÒ»Æð°²×°¶ø²»³öÎÊÌâ¡£ÎÒµÄһЩPerl½Å±¾»áÏò Íâ·¢ËÍÓʼþ£¬ËùÒÔÎÒÒª°Ñsendmail³ÌÐò¿½±´µ½apacheµÄchroot»·¾³Ï ¡£
¹ØÓÚ Chroot µÄÆäËûһЩÊÂÇé¡£
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