PROFTPD的Chroot限制

PROFTPD.CONF如何改?我要限制不同FTP USER在他自己目錄讀寫,其他目錄不可讀寫.請幫一把巴!!請看一下這個配置文件錯在那里:(FTP USER AND FTP GROUP有了,控制目錄是 /APP/FTPDIR 允許目錄是 /APP/FTPDIR/PEARL )
#
# Virtual Hosting Server Configuration
# for Frontier Internet Services Limited
# ()
#
ServerName "Master Webserver"
#
# Spawn from inetd?
#
#ServerType inetd
#
# or maybe a standalone server...
#
ServerType standalone
#
# don@#t give the server banner until _after_ authentication
#
DeferWelcome off
#
# Some basic defaults
#
Port 21
Umask 002
TimeoutLogin 120
TimeoutIdle 600
TimeoutNoTransfer 900
TimeoutStalled 3600
#
# No, I don@#t think we@#ll run as root!
#
User ftp
Group ftp

# We want clients to be able to login with "anonymous" as well as "ftp"
UserAlias anonymous ftp
RequireValidShell no

#
# This is a non-customer usable name, (ie they should be connecting via })
# not @#hostname@#. Therefore let@#s dump them in a dummy aclearcase/" target="_blank" >ccount and wait for them to
# scream.
#
DefaultRoot /app/ftpdir/
#
# Performance, let@#s do DNS resolution when we process the logs...
#
UseReverseDNS off
#
# Where do we put the pid files?
#
#ScoreboardPath /var/run/proftpd
#
# Logging options
#
#TransferLog /var/spool/syslog/proftpd/xferlog.legacy
#
# Some logging formats
#
#LogFormat default "%h %l %u %t "%r" %s %b"
#LogFormat auth "%v [%P] %h %t "%r" %s"
#LogFormat write "%h %l %u %t "%r" %s %b"
#
# Global settings
#

DisplayLogin welcome.msg
DisplayFirstChdir readme
#
# having to delete before uploading is a pain ;)
#
AllowOverwrite yes
#
# Turn off Ident lookups
#
IdentLookups off
#
# Logging
#
# file/dir access
#
# ExtendedLog /var/spool/syslog/proftpd/access.log WRITE,READ write
#
#
# Record all logins
#
# ExtendedLog /var/spool/syslog/proftpd/auth.log AUTH auth
#
# Paranoia logging level....
#
##ExtendedLog /var/spool/syslog/proftpd/paranoid.log ALL default

#
# Deny writing to the base server...
#

DenyAll

# --------------------------------------------
# Virtual Servers start here....
#
# (Note: this is normally auto generated by a
# script written in house).
# --------------------------------------------
#
# ewftp.ewserver.com.
# This is the default server
# Gets all the connections for },
#

ServerAdmin
ServerName "ewMaster FTPserver"
MaxLoginAttempts 2
RequireValidShell no
# TransferLog /var/spool/syslog/proftpd/xferlog.www
MaxClients 50
DefaultServer on
#DefaultRoot ~ !staff
DefaultRoot /app/ftpdir
AllowOverwrite yes

#
# No quickly do we kick someone out
#
TimeoutLogin 120
TimeoutIdle 600
TimeoutNoTransfer 900

DenyAll

User ftp
Group ftp
UserAlias anonymous ftp

AllowAll

DenyAll

# --------------------------------------------

# --------------------------------------------

#
# Block them from doing anything other than reading...
#
#

AllowAll

FLOATBOAT TOLD ME THIS BELOW,BUT DIDN@#T WORK:
修改proftpd.conf，添加DefaultRoot ~ groupname
其中groupname為用戶組的名，如添加一個新的用戶username，和一個新的組groupname，要將username限制在其主目錄內只需要添加上面所說的那條語句到proftpd.conf中即可。切記修改完之后要重新啟動proftpd

原文轉自：http://www.kjueaiud.com