Acesso externo ao servidor com PROFTPD

megabertis
(usa Ubuntu)

Enviado em 10/10/2017 - 08:20h

Olá a todos !!!

Pessoal, estou montando um servidor de FTP aqui para empresa, só que não estou conseguindo realizar acesso externo pelo meu ip de wan através do mesmo. No filezilla aparece as mensagens abaixo:

 

Estado:    Conectando meu_ip_de_wan:21...

Estado:    Conexão estabelecida, esperando mensagem de boas-vindas...

Estado:    Servidor sem segurança, não suporta FTP sobre TLS

Estado:    Identificado

Estado:    Obtendo lista de pastas...

Comando:    PWD

Resposta:    257 "/" is the current directory

Comando:    TYPE I

Resposta:    200 Type set to I

Comando:    PASV

Resposta:    227 Entering Passive Mode (meu_ip_de_wan,192,191).

Comando:    MLSD

Erro:    A conexão de dados não pode ser estabalecida: ECONNREFUSED - Conexão recusada pelo servidor

Erro:    Conexão expirou após 20 segundos de inatividade

Erro:    Falha na obtenção da lista de pastas

Estado:    Desconectado do servidor



 

Esse é meu arquivo de configuração do Proftpd:

 

#

# /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                off

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

IdentLookups            off

 

ServerName            "nome_do_servidor"

ServerType            standalone

DeferWelcome            off

ServerIdent                     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 /laudos

 

# 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                  1024 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        meu_ip_de_wan

 

# 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                ftp

Group                ftpgroup

 

# 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

 

# 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 off

</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>

 

#

# Alternative authentication frameworks

#

#Include /etc/proftpd/ldap.conf

#Include /etc/proftpd/sql.conf

 

#

# This is used for FTPS connections

#

#Include /etc/proftpd/tls.conf

 

#

# Useful to keep VirtualHost/VirtualRoot directives separated

#

#Include /etc/proftpd/virtuals.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>

 

# Include other custom configuration files

Include /etc/proftpd/conf.d/



 

Aqui na empresa tenho ip fixo para conexão. Meu firewall é um PFSENSE. Nele fiz NAT apontando para o servidor nas portas 21, 20 e a range 1024:65534, ambas as portas como TCP/UDP. Antes de sair para internet temos um microtik que é do nosso provedor local. Ligando no provedor o mesmo me disse que as portas mencionei acima estão abertas. Se eu usar o ip do servidor na rede interna consigo conectar normalmente no servidor. Apenas externamente não estou conseguindo.

Por favor pessoal me deem uma ajuda ai pois estou quebrando a cabeça aqui. Desde já agradeço a todos.