Problemas para configurar um servidor FTP com o Proftpd

paulorobertoess
(usa Ubuntu)

Enviado em 26/07/2015 - 18:07h

Prezados, tenho um servidor Ubuntu, com o Proftpd rodando em um servidor EC2 da Amazon, quando tento me conectar com o FileZilla obtenho o erro:
Erro: A conexão excedeu limite de tempo
Erro: Falha na obtenção da lista de pastas

Se eu checar com o ftptest.net tenho esse resultado:

Status: Connected, waiting for welcome message...
Reply: 220 FTP Server ready.
Command: CLNT [url=https://ftptest.net]https://ftptest.net[/url] on behalf of 187.74.89.5
Reply: 500 CLNT not understood
Command: USER lya
Reply: 331 Password required for lya
Command: PASS **************
Reply: 230 User lya logged in
Command: SYST
Reply: 215 UNIX Type: L8
Command: FEAT
Reply: 211-Features:
Reply: MFMT
Reply: LANG en-US.UTF-8*;en-US
Reply: SIZE
Reply: SITE MKDIR
Reply: MFF modify;UNIX.group;UNIX.mode;
Reply: REST STREAM
Reply: MLST modify*;perm*;size*;type*;unique*;UNIX.group*;UNIX.mode*;UNIX.owner*;
Reply: UTF8
Reply: EPRT
Reply: SITE SYMLINK
Reply: EPSV
Reply: SITE UTIME
Reply: MDTM
Reply: SITE RMDIR
Reply: TVFS
Reply: SITE COPY
Reply: 211 End
Command: PWD
Reply: 257 "/" is the current directory
Status: Current path is /
Command: TYPE I
Reply: 200 Type set to I
Command: PASV
Reply: 227 Entering Passive Mode (54,94,152,176,199,81).
Command: MLSD
Status: Data connection established.
[color=red]Error: Malformed directory listing
Error: Line feed received without preceding carriage return [/color]

No log do proftpd tenho essa mensagem

2015-07-26 20:23:00,151 servidor01 proftpd[1772] localhost (filezilla-project.org[213.239.212.239]): USER lya: Login successful.

2015-07-26 20:23:03,424 servidor01 proftpd[1772] localhost (filezilla-project.org[213.239.212.239]): ROOT PRIVS: unable to seteuid(): Operation not permitted

2015-07-26 20:23:03,424 servidor01 proftpd[1772] localhost (filezilla-project.org[213.239.212.239]): ROOT PRIVS: unable to setegid(): Operation not permitted

2015-07-26 20:23:03,427 servidor01 proftpd[1772] localhost (filezilla-project.org[213.239.212.239]): RELINQUISH PRIVS: unable to seteuid(PR_ROOT_UID): Operation not permitted

2015-07-26 20:23:03,427 servidor01 proftpd[1772] localhost (filezilla-project.org[213.239.212.239]): FTP session closed.

 

Instalei o proftpd usando

apt-get install proftpd-basic 

O usuario foi adicionado usando os comando:

cp /bin/false /bin/ftp

echo "/bin/ftp" >> /etc/shells

adduser --shell=/bin/ftp --home=/www/lya lya

 

Se eu executar ls -l na raiz:

drwxr-xr-x   6 ftp  nogroup  4096 Jul 23 03:17 www

 

Se eu executar ls -l dentro de www

drwxr-xr-x  5 lya      lya      4096 Jul 23 03:17 lya

 

Arquivo /etc/proftp/proftpd.conf

# /etc/proftpd/proftpd.conf -- This is a basic ProFTPD configuration file.

# To really apply changes, reload proftpd after modifications, if

# it runs in daemon mode. It is not required in inetd/xinetd mode.

#



# Includes DSO modules

Include /etc/proftpd/modules.conf



# Set off to disable IPv6 support which is annoying on IPv4 only boxes.

UseIPv6                         on

# If set on you can experience a longer connection delay in many cases.

IdentLookups                    off

ServerName                      "servidor01"

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                     ~

<Global>

ServerIdent on "FTP Server ready."

</Global>



# 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 54.94.152.176



# 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.



# 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

QuotaLog /etc/proftpd/quota_log



# Logging onto /var/log/lastlog is enabled but set to off by default

#UseLastlog on



# In order to keep log file dates consistent after chroot, use timezone info

# from /etc/localtime.  If this is not set, and proftpd is configured to

# chroot (e.g. DefaultRoot or <Anonymous>), it will use the non-daylight

# savings timezone regardless of whether DST is in effect.

#SetEnv TZ :/etc/localtime



<IfModule mod_quotatab.c>

QuotaEngine on



<IfModule mod_quotatab_file.c>

QuotaLimitTable file:/etc/proftpd/ftpquota.limittab #Abaixo como criar os arquivos.

QuotaTallyTable file:/etc/proftpd/ftpquota.tallytab

</IfModule>

</IfModule>



<IfModule mod_ratio.c>

Ratios off

</IfModule>





# Delay engine reduces impact of the so-called Timing Attack described in

# http://www.securityfocus.com/bid/11430/discuss

# 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>



 

Meu Security Group esta configurado assim:
SSH ; TCP 22 : 0.0.0.0/0
Custom; 2121; 0.0.0.0/0
HTTP; TCP 80; 0.0.0.0/0
DNS (UDP); UDP 53; 0.0.0.0/0
HTTPS; TCP 443; 0.0.0.0/0
DNS (TCP); TCP 53; 0.0.0.0/0
Custom; TCP 20 - 21 0.0.0.0/0
All ICMP; All; N/A; 0.0.0.0/0
Custom; TCP 49152 - 65534; 0.0.0.0/0


O que pode estar causando esse problema?

joaoAraujo
(usa openSUSE)

Enviado em 01/10/2015 - 18:41h

Cara abre o seu proftpd.conf e adiciona a linha abaixo, que é para o seu servidor aceita conexões externas
AllowForeignAddress on

Descomenta a linha abaixo
#RequireValidShell off

reinicia o proftpd e testa.