how to set up ftp access to specific directory in proftpd

# This is the ProFTPD configuration file
# $Id: proftpd.conf,v 1.1 2004/02/26 17:54:30 thias Exp $
 
ServerName			"ProFTPD server"
ServerIdent			on "FTP Server ready."
ServerAdmin			root@localhost
#ServerType			standalone
ServerType			inetd
DefaultServer			on
AccessGrantMsg			"User %u logged in."
#DisplayConnect			/etc/ftpissue
#DisplayLogin			/etc/ftpmotd
#DisplayGoAway			/etc/ftpgoaway
DeferWelcome			off
 
# Use this to excude users from the chroot
DefaultRoot			~ !adm,!webadmin
 
# Use pam to authenticate (default) and be authoritative
AuthPAMConfig			proftpd
AuthOrder			mod_auth_pam.c* mod_auth_unix.c
 
# Do not perform ident nor DNS lookups (hangs when the port is filtered)
IdentLookups			off
UseReverseDNS			off
 
# Port 21 is the standard FTP port.
Port				21
 
# Umask 022 is a good standard umask to prevent new dirs and files
# from being group and world writable.
Umask				022
 
# Default to show dot files in directory listings
ListOptions			"-a"
 
# See Configuration.html for these (here are the default values)
#MultilineRFC2228		off
#RootLogin			off
#LoginPasswordPrompt		on
#MaxLoginAttempts		3
#MaxClientsPerHost		none
#AllowForeignAddress		off	# For FXP
 
# Allow to resume not only the downloads but the uploads too
AllowRetrieveRestart		on
AllowStoreRestart		on
 
# To prevent DoS attacks, set the maximum number of child processes
# to 30.  If you need to allow more than 30 concurrent connections
# at once, simply increase this value.  Note that this ONLY works
# in standalone mode, in inetd mode you should use an inetd server
# that allows you to limit maximum number of processes per service
# (such as xinetd)
MaxInstances			20
 
# Set the user and group that the server normally runs at.
User				nobody
Group				nobody
 
# Disable sendfile by default since it breaks displaying the download speeds in
# ftptop and ftpwho
UseSendfile			no
 
# This is where we want to put the pid file
ScoreboardFile			/var/run/proftpd.score
 
# Normally, we want users to do a few things.
<Global>
  AllowOverwrite		yes
  <Limit ALL SITE_CHMOD>
    AllowAll
  </Limit>
</Global>
 
# Define the log formats
LogFormat			default	"%h %l %u %t \"%r\" %s %b"
LogFormat			auth	"%v [%P] %h %t \"%r\" %s"
 
# TLS
# Explained at http://www.castaglia.org/proftpd/modules/mod_tls.html
#TLSEngine			on
#TLSRequired			on
#TLSRSACertificateFile		/etc/pki/tls/certs/proftpd.pem
#TLSRSACertificateKeyFile	/etc/pki/tls/certs/proftpd.pem
#TLSCipherSuite			ALL:!ADH:!DES
#TLSOptions			NoCertRequest
#TLSVerifyClient		off
##TLSRenegotiate		ctrl 3600 data 512000 required off timeout 300
#TLSLog				/var/log/proftpd/tls.log
 
# SQL authentication Dynamic Shared Object (DSO) loading
# See README.DSO and howto/DSO.html for more details.
#<IfModule mod_dso.c>
#   LoadModule mod_sql.c
#   LoadModule mod_sql_mysql.c
#   LoadModule mod_sql_postgres.c
#</IfModule>
 
# A basic anonymous configuration, with an upload directory.
#<Anonymous ~ftp>
#  User				ftp
#  Group				ftp
#  AccessGrantMsg		"Anonymous login ok, restrictions apply."
#
#  # We want clients to be able to login with "anonymous" as well as "ftp"
#  UserAlias			anonymous ftp
#
#  # Limit the maximum number of anonymous logins
#  MaxClients			10 "Sorry, max %m users -- try again later"
#
#  # Put the user into /pub right after login
#  #DefaultChdir			/pub
#
#  # We want 'welcome.msg' displayed at login, '.message' displayed in
#  # each newly chdired directory and tell users to read README* files. 
#  DisplayLogin			/welcome.msg
#  DisplayFirstChdir		.message
#  DisplayReadme			README*
#
#  # Some more cosmetic and not vital stuff
#  DirFakeUser			on ftp
#  DirFakeGroup			on ftp
#
#  # Limit WRITE everywhere in the anonymous chroot
#  <Limit WRITE SITE_CHMOD>
#    DenyAll
#  </Limit>
#
#  # An upload directory that allows storing files but not retrieving
#  # or creating directories.
#  <Directory uploads/*>
#    AllowOverwrite		no
#    <Limit READ>
#      DenyAll
#    </Limit>
#
#    <Limit STOR>
#      AllowAll
#    </Limit>
#  </Directory>
#
#  # Don't write anonymous accesses to the system wtmp file (good idea!)
#  WtmpLog			off
#
#  # Logging for the anonymous transfers
#  ExtendedLog		/var/log/proftpd/access.log WRITE,READ default
#  ExtendedLog		/var/log/proftpd/auth.log AUTH auth
#
#</Anonymous>
 
<Limit LOGIN>
AllowGroup      ftpusers
DenyAll
</Limit>