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[+] proftpd - wysyłanie plików: 450 Transfer aborted.

: 30 grudnia 2009, 16:03
autor: c-art
Witam.
Mam problem z wysyłaniem plików na serwer poprzez proftpd. Za każdym razem gdy chcę wysłać plik poprzez Total Commandera, otrzymuję komunikat:

Kod: Zaznacz cały

450 Transfer aborted. Link to file server lost
Natomiast na serwer zostaje przesłane jedynie 512 bajtów pliku.

Próbowałem również uruchomić serwer vsftpd, jednak sytuacja się powtórzyła.
Konfig proftpd:

Kod: Zaznacz cały

# 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			"server #1"
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			\*.*/

MaxRetrieveFileSize 10 Gb
# 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

# 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
# [url]http://security.lss.hr/index.php?page=details&ID=LSS-2004-10-02[/url]
# 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>
W jaki sposób można to naprawić?
Będę wdzięczny za pomoc.

: 30 grudnia 2009, 18:24
autor: mendeczka
A może coś więcej z np

Kod: Zaznacz cały

TransferLog /var/log/proftpd/xferlog
SystemLog   /var/log/proftpd/proftpd.log 
Czy sam sprawdzałeś logi?
Co zrobiłeś w tej sprawie?

: 30 grudnia 2009, 18:57
autor: c-art
Przesyłam fragmenty dotyczące ostatniej sesji:

Kod: Zaznacz cały

SystemLog
[...] ProFTPD 1.3.1 (stable) (built Thu Oct 29 09:01:50 UTC 2009) standalone mode STARTUP
[...]
[...] FTP session opened. Dec 30 17:40:45
[...] USER wht: Login successful. Dec 30
[...] notice: user wht: aborting
[...] aborting transfer: Link to file server lost Dec 30 17:41:33 loft4013.serverloft.eu proftpd[9307] loft4013.serverloft.eu
[...] aborting transfer: Link to file server lost Dec 30 17:41:55 loft4013.serverloft.eu
[...] aborting transfer: Link to file server lost


TransferLog
Wed Dec 30 17:41:11 2009 18 ip-89-174-123-75 512 /home/wht/maindebug.swf b _ i r wht ftp 0 * i
Wed Dec 30 17:41:33 2009 18 ip-89-174-123-75 512 /home/wht/maindebug.swf b _ i r wht ftp 0 * i
Wed Dec 30 17:41:55 2009 18 ip-89-174-123-75 512 /home/wht/maindebug.swf b _ i r wht ftp 0 * i


[Dodano: |30 Gru 2009|, 2009 21:44]

Do zamknięcia. Pomógł restart rutera w sieci lokalnej.

: 30 grudnia 2009, 21:57
autor: mendeczka
to zrób mały eksperyment dodaj

Kod: Zaznacz cały

<Anonymous /var/ftp/-----lub ścieżkę do FTP>
User tu wpisz usera systemowego
Group user
AnonRequirePassword off
MaxClients 5 "The server is full, hosting %m users"
DisplayLogin welcome.msg
<Limit LOGIN>
Allow from all
Deny from all
</Limit>
AllowOverwrite on
<Limit LIST NLST  STOR STOU  APPE  RETR  RNFR RNTO  MKD XMKD SITE_MKDIR  PWD XPWD  SIZE  STAT  CWD XCWD  CDUP XCUP >
 AllowAll
</Limit>
<Limit DELE  RMD XRMD SITE_RMDIR  SITE  SITE_CHMOD  SITE_CHGRP  MTDM >
 DenyAll
</Limit>
</Anonymous>
następnie zrestartuj proftpd - jeżeli nie będzie błędów - sprawdź przez TC.