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Proftp - Access denied

Status: Ungelöst | Ubuntu-Version: Ubuntu 10.04 (Lucid Lynx)
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Alex1987

Anmeldungsdatum:
2. Oktober 2007

Beiträge: Zähle...

Hallo!

Ich hab ein Problem mit meinem Proftpd. Ich kann mich mit meinem User einloggen, aber wenn ich z.B. ein Verzeichnis anlegen möchte, dann bekomme ich immer "Access is denied" zurück. Woran kann das liegen? Mein Benutzer ist in der Gruppe www-data. Wenn ich mich im terminal per ssh einlogge, dann kann ich problemlos Verzeichnisse und Datein anlegen/löschen. Anbei meine Konfiguration

#
# /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			"homer"
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			/var/www

# 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

# 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			10
# 
#   # 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
#     </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>

Und die Ausgabe vom sudo proftpd -td5

Checking syntax of configuration file
 - using TCP receive buffer size of 87380 bytes
 - using TCP send buffer size of 16384 bytes
 - mod_tls/2.2.2: using OpenSSL 0.9.8k 25 Mar 2009
 - disabling runtime support for IPv6 connections
 - DenyFilter: compiling deny regex '\*.*/'
 - <IfModule>: using 'mod_dynmasq.c' section at line 54
 - <IfModule>: using 'mod_quotatab.c' section at line 91
 - <IfModule>: skipping 'mod_ratio.c' section at line 95
 - <IfModule>: using 'mod_delay.c' section at line 103
 - <IfModule>: using 'mod_ctrls.c' section at line 107
 - <IfModule>: using 'mod_ctrls_admin.c' section at line 115
homer - 
homer - Config for homer:
homer - IdentLookups
homer - IdentLookups
homer - DeferWelcome
homer - DefaultServer
homer - ShowSymlinks
homer - TimeoutNoTransfer
homer - TimeoutStalled
homer - TimeoutIdle
homer - DisplayLogin
homer - DisplayChdir
homer - ListOptions
homer - DenyFilter
homer - DefaultRoot
homer - UserID
homer - UserName
homer - GroupID
homer - GroupName
homer - Umask
homer - DirUmask
homer - AllowOverwrite
homer - TransferLog
homer - QuotaEngine
homer - DelayEngine
homer - mod_lang/0.9: using en_US.UTF-8 messages
homer - mod_lang/0.9: binding to text domain 'proftpd' using locale path '/usr/share/locale'
homer - mod_lang/0.9: using locale files in '/usr/share/locale'
homer - mod_lang/0.9: skipping possible language 'it': not supported by setlocale(3); see `locale -a'
homer - mod_lang/0.9: skipping possible language 'ru': not supported by setlocale(3); see `locale -a'
homer - mod_lang/0.9: skipping possible language 'zh_CN': not supported by setlocale(3); see `locale -a'
homer - mod_lang/0.9: skipping possible language 'fr_FR': not supported by setlocale(3); see `locale -a'
homer - mod_lang/0.9: skipping possible language 'bg_BG': not supported by setlocale(3); see `locale -a'
homer - mod_lang/0.9: skipping possible language 'en_US': not supported by setlocale(3); see `locale -a'
homer - mod_lang/0.9: skipping possible language 'zh_TW': not supported by setlocale(3); see `locale -a'
homer - mod_lang/0.9: skipping possible language 'ko_KR': not supported by setlocale(3); see `locale -a'
Syntax check complete.
homer - mod_ban/0.5.3: error detaching shm: Invalid argument
homer - mod_ban/0.5.3: error removing shmid -1: Invalid argument

ktklin

Avatar von ktklin

Anmeldungsdatum:
20. Mai 2006

Beiträge: 206

Wohnort: Nürnberg

Hallo,

ich wage mal einen Schuss ins Blaue

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

sind die Einstellungen unter denen der proftp läuft.

Gibt es die Gruppe nogroup auf deinem System?
Falls ja hat sie Schreibrechte auf die entsprechenden Verzeichnisse?

Alex1987

(Themenstarter)

Anmeldungsdatum:
2. Oktober 2007

Beiträge: 49

Daran liegts leider auch nicht. Der Ordner /var/www gehört www-data, wenn ich den "User" zur Gruppe "nogroup" hinzufüge, ändert das garnichts.

Wenn ich mich richtig erinnere, dann hat der FTP Server problemlos funktioniert, bis ich probiert habe ispconfig zu installieren. Die Installation schlug aber fehl. Hilft das vielleicht bei der Einschränkung des Problems?

LG

ktklin

Avatar von ktklin

Anmeldungsdatum:
20. Mai 2006

Beiträge: 206

Wohnort: Nürnberg

Hi,

wie sehen die Verzeichnisrechte von /var/www aus.

Hat du www-data in die Gruppe nogroup aufgenommen?

CU

Alex1987

(Themenstarter)

Anmeldungsdatum:
2. Oktober 2007

Beiträge: 49

Die Verzeichnisrechte sind momentan 770 für www-data:www-data

Bei 777 funktionierts nicht und wenn ich www-data zu nogroup hinzufüge leider auch nicht

ktklin

Avatar von ktklin

Anmeldungsdatum:
20. Mai 2006

Beiträge: 206

Wohnort: Nürnberg

Hi,

hast du den proftpd schon mal im Debug Modus laufen lassen?

proftpd -n -d5
ab Versionen > 1.2.8 kann man auch
debugLevel 6
Serverlog /var/log/proftpd.debug.log
in der proftpd.conf eintragen.

Evtl. hilft der Link auch weiter.

http://kevinhartmann.de/2009/04/30/ftp-server-proftpd-debian4-einrichten/comment-page-1/

cu

lygie

Anmeldungsdatum:
10. Dezember 2007

Beiträge: 299

Hallo Alex1987,

steck doch mal den user ftp in die Gruppe www-data. Wenn die Gruppe www-data Schreibrechte hat, sollte es funktionieren.

Viel Erfolg

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