Acesso externo Proftpd

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:

Código :

 
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:

Código :

 
#
# /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.

Re: Acesso externo Proftpd

Citação:

Postado originalmente por megabertis

Código :

 
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:

Código :

 
#
# /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/

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

eu não gosto do proftp uso mais o vsftp mais o problema esta na lista de pastas
verifica as permissões das pasta

Re: Acesso externo Proftpd

Olá Bruno. Desde já agradeço a ajuda.

Criei a pasta laudos que é a pasta em que o usuário que criei terá acesso no FTP. Dei permissão total para esse usuário nessa pasta. E o estranho é que quando acesso interno funciona normalmente. Apenas quando tento acessar com meu ip fixo de WAN (externamente) que não funciona. Será que o problema é com as permissões mesmo eu conseguindo acessar internamente?

Re: Acesso externo Proftpd

Citação:

Postado originalmente por megabertis

Olá Bruno. Desde já agradeço a ajuda.

Criei a pasta laudos que é a pasta em que o usuário que criei terá acesso no FTP. Dei permissão total para esse usuário nessa pasta. E o estranho é que quando acesso interno funciona normalmente. Apenas quando tento acessar com meu ip fixo de WAN (externamente) que não funciona. Será que o problema é com as permissões mesmo eu conseguindo acessar internamente?

a ta na lan funciona pere ai vou pensar

o ip fixo esta no pfsense certo ???
o nat vc precisa somente na porta 21

Re: Acesso externo Proftpd

O ip fixo está configurado no pfsense. O nat precisaria para portas de outros serviços também. Mas para testar o ftp fiz um nat para as portas 21, 20 e também liberei um range de portas altas 1024:65534.