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#1  2009-08-03 15:54:32

  nexo - Użytkownik

nexo
Użytkownik
Zarejestrowany: 2009-05-08

proftpd

Witam,
jak mozna skonfigurować anonimowe konto ftp z utworzonym drzewem katalogów do którego anonimowiu uzytkownicy będą mogli zapisywać i usuwać zapisane pliki, ale nie będą mogli usunąć już stworzonych katalogów?

Jak ustawić prawa?

konfiguracja standartowa (poinstalacyjna):

Kod:

#
# /etc/proftpd/proftpd.conf -- This is a basic ProFTPD configuration file.
# To really apply changes reload proftpd after modifications.
# 

# Includes DSO modules
Include /etc/proftpd/modules.conf

# Set off to disable IPv6 support which is annoying on IPv4 only boxes.
UseIPv6                off
# If set on you can experience a longer connection delay in many cases.
IdentLookups            off

ServerName            "Debian"
ServerType            standalone
DeferWelcome            off

MultilineRFC2228        on
DefaultServer            on
ShowSymlinks            on

TimeoutNoTransfer        600
TimeoutStalled            600
TimeoutIdle            1200

DisplayLogin                    welcome.msg
DisplayChdir                   .message true
ListOptions                    "-l"

DenyFilter            \*.*/

# Use this to jail all users in their homes 
# DefaultRoot            ~

# Users require a valid shell listed in /etc/shells to login.
# Use this directive to release that constrain.
# RequireValidShell        off

# Port 21 is the standard FTP port.
Port                21

IdentLookups off 
UseReverseDNS off

# In some cases you have to specify passive ports range to by-pass
# firewall limitations. Ephemeral ports can be used for that, but
# feel free to use a more narrow range.
# PassivePorts                  49152 65534

# If your host was NATted, this option is useful in order to
# allow passive tranfers to work. You have to use your public
# address and opening the passive ports used on your firewall as well.
# MasqueradeAddress        1.2.3.4

# This is useful for masquerading address with dynamic IPs:
# refresh any configured MasqueradeAddress directives every 8 hours
<IfModule mod_dynmasq.c>
# DynMasqRefresh 28800
</IfModule>

# 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            30

# Set the user and group that the server normally runs at.
User                proftpd
Group                nogroup

# Umask 022 is a good standard umask to prevent new files and dirs
# (second parm) from being group and world writable.
Umask                022  022
# Normally, we want files to be overwriteable.
AllowOverwrite            on

# Uncomment this if you are using NIS or LDAP via NSS to retrieve passwords:
# PersistentPasswd        off

# This is required to use both PAM-based authentication and local passwords
# AuthOrder            mod_auth_pam.c* mod_auth_unix.c

# Be warned: use of this directive impacts CPU average load!
# Uncomment this if you like to see progress and transfer rate with ftpwho
# in downloads. That is not needed for uploads rates.
#
# UseSendFile            off

TransferLog /var/log/proftpd/xferlog
SystemLog   /var/log/proftpd/proftpd.log

<IfModule mod_quotatab.c>
QuotaEngine off
</IfModule>

<IfModule mod_ratio.c>
Ratios off
</IfModule>


# Delay engine reduces impact of the so-called Timing Attack described in
# http://security.lss.hr/index.php?page=details&ID=LSS-2004-10-02
# It is on by default. 
<IfModule mod_delay.c>
DelayEngine on
</IfModule>

<IfModule mod_ctrls.c>
ControlsEngine        off
ControlsMaxClients    2
ControlsLog           /var/log/proftpd/controls.log
ControlsInterval      5
ControlsSocket        /var/run/proftpd/proftpd.sock
</IfModule>

<IfModule mod_ctrls_admin.c>
AdminControlsEngine off
</IfModule>

#
# Alternative authentication frameworks
#
#Include /etc/proftpd/ldap.conf
#Include /etc/proftpd/sql.conf

#
# This is used for FTPS connections
#
#Include /etc/proftpd/tls.conf

# A basic anonymous configuration, no upload directories.

 <Anonymous ~ftp>
   User                ftp
   Group                nogroup
   # We want clients to be able to login with "anonymous" as well as "ftp"
   UserAlias            anonymous ftp
   # Cosmetic changes, all files belongs to ftp user
   DirFakeUser    on ftp
   DirFakeGroup on ftp
 
   RequireValidShell        off
 
   # Limit the maximum number of anonymous logins
   MaxClients            1000
 
   # We want 'welcome.msg' displayed at login, and '.message' displayed
   # in each newly chdired directory.
   DisplayLogin            welcome.msg
   DisplayChdir        .message
 
   # Limit WRITE everywhere in the anonymous chroot
   <Directory *>
     <Limit WRITE>
#       DenyAll
       AllowAll
     </Limit>
   </Directory>
 
   # Uncomment this if you're brave.
   # <Directory incoming>
   #   # Umask 022 is a good standard umask to prevent new files and dirs
   #   # (second parm) from being group and world writable.
   #   Umask                022  022
   #            <Limit READ WRITE>
   #            DenyAll
   #            </Limit>
   #            <Limit STOR>
   #            AllowAll
   #            </Limit>
   # </Directory>
 
 </Anonymous>

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#2  2009-08-04 09:27:16

  kamikaze - Administrator

kamikaze
Administrator
Zarejestrowany: 2004-04-16

Re: proftpd

Chyba będziesz musiał użyć funkcjonalność ACL na systemie plików. Lub jakiegoś innego rozwiązania typu SELinux czy podobne.

p.s. Temat posta do pupy, niewiele mówi.

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#3  2009-08-04 15:03:43

  nexo - Użytkownik

nexo
Użytkownik
Zarejestrowany: 2009-05-08

Re: proftpd

Odpowiedź jest prosta:

user: ftp

katalog
/home/ftp/
/home/ftp/x
/home/ftp/y
/home/ftp/z

na x, y, z dla ftp pelne prawa a na /home/ftp/ zabieram prawa zapisu.
katalogow x, y, z nie usunie a będzie mógł do nic pisać.

Nie wiem czy to jest poprawne ale działa.

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