Erro 421 proftpd

1. Erro 421 proftpd

Mauricio Vieira Gomes da Silva
dandelion

(usa Ubuntu)

Enviado em 27/05/2011 - 21:58h

Olá! Boa noite.

Estou configurando um servidor FTP no meu local de trabalho, mas o mesmo exibe a seguinte mensagem quando tento iniciá-lo:

blastoise:/etc/proftpd# ftp localhost
Connected to localhost.localdomain.
421 Service not available, remote server has closed connection
ftp>

Quando tento chamar o serviço pelo bash, o mesmo exibe a seguinte mensagem:

blastoise:/etc/proftpd# proftpd -n
blastoise.dgolab.cefetmg.br - Failed binding to 0.0.0.0, port 21: Endereço já em uso
blastoise.dgolab.cefetmg.br - Check the ServerType directive to ensure you are configured correctly.

Segue o conteúdo do meu arquivo proftpd.conf:
--------------------------------------------------------------------------------------------
#
# /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 "Servidor FTP DGO"
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 ~

# 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 nobody
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 on
#</IfModule>

#<IfModule mod_ratio.c>
#Ratios on
#</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>
--------------------------------------------------------------------------------------------
Agradeço desde já a todos aqueles que puderem disponibilizar uma fração de seu tempo pra me ajudar.


  


2. Re: Erro 421 proftpd

Perfil removido
removido

(usa Nenhuma)

Enviado em 27/05/2011 - 22:42h

Tente reinicia-lo
/etc/init.d/proftpd restart

http://blog.cesar.augustus.nom.br/instalando-o-servidor-proftpd-no-linux.html


3. Re: Erro 421 proftpd

BEZALIEL RAMOS
beza

(usa Debian)

Enviado em 30/04/2012 - 17:12h

Estou com o mesmo problema. Você consegiu resolver?


4. Eu estou com o mesmo problema!

marx cavalcante monteiro
kmmx

(usa Debian)

Enviado em 02/12/2012 - 00:12h

Boa noite a todos,

estou com o mesmo problema.

o servidor Proftp estava funcionando. derepente ao tentar conectar deu a mesma mensagem.

"421 Service not available, remote server has closed connection."

olhando o log do proftpd (# vim /var/log/proftpd/proftpd.log) apois tentar conectar pela propria maqina.

"Dec 01 23:01:13 debian proftpd[2903] 127.0.1.1: Failed binding to ::, port 21: Address already in use
Dec 01 23:01:13 debian proftpd[2903] 127.0.1.1: Check the ServerType directive to ensure you are configured correctly."

# ps aux | grep -i proftpd
root 2019 0.0 0.0 7556 848 pts/0 S+ 00:10 0:00 grep -i proftpd

# netstat -pant | grep :21
tcp 0 0 0.0.0.0:21 0.0.0.0:* OUÃA 983/inetd

~# iptables -L
Chain INPUT (policy ACCEPT)
target prot opt source destination
LOG all -- anywhere anywhere LOG level debug prefix `BANDWIDTH_IN:'

Chain FORWARD (policy ACCEPT)
target prot opt source destination
LOG all -- anywhere anywhere LOG level debug prefix `BANDWIDTH_OUT:'
LOG all -- anywhere anywhere LOG level debug prefix `BANDWIDTH_IN:'

Chain OUTPUT (policy ACCEPT)
target prot opt source destination
LOG all -- anywhere anywhere LOG level debug prefix `BANDWIDTH_OUT:'


o conteudo do arquivo /etc/proftpd/proftpd.conf é:

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

ServerName "Servidor-FTP"
ServerType standalone
ServerIdent on "Bem-vindo ao Servidor FTP"
ServerAdmin root@localhost
DeferWelcome off

DefaultServer on
ShowSymlinks on

DisplayLogin welcome.msg
DisplayChdir .message true
ListOptions "-l"

DenyFilter \*.*/

# 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)
MaxClients 10
MaxClientsPerHost 4

# 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
UseReverseDNS off

<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

#
# Useful to keep VirtualHost/VirtualRoot directives separated
#
#Include /etc/proftpd/virtuals.con

# 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>
# <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>
################################################################################


por favor, alguem pode me ajudar?



5. mais uma informação

marx cavalcante monteiro
kmmx

(usa Debian)

Enviado em 02/12/2012 - 00:23h


# proftpd -n -d 9
- using TCP receive buffer size of 87380 bytes
- using TCP send buffer size of 16384 bytes
- ROOT PRIVS at mod_core.c:304
- loading 'mod_ctrls_admin.c'
- loading 'mod_tls.c'
- mod_tls/2.4.2: using OpenSSL 0.9.8o 01 Jun 2010
- loading 'mod_radius.c'
- loading 'mod_quotatab.c'
- loading 'mod_quotatab_file.c'
- loading 'mod_quotatab_radius.c'
- loading 'mod_wrap.c'
- loading 'mod_rewrite.c'
- loading 'mod_load.c'
- loading 'mod_ban.c'
- loading 'mod_wrap2.c'
- loading 'mod_wrap2_file.c'
- loading 'mod_dynmasq.c'
- loading 'mod_vroot.c'
- loading 'mod_exec.c'
- loading 'mod_shaper.c'
- loading 'mod_ratio.c'
- loading 'mod_site_misc.c'
- loading 'mod_sftp.c'
- mod_sftp/0.9.7: using OpenSSL 0.9.8o 01 Jun 2010
- loading 'mod_sftp_pam.c'
- loading 'mod_facl.c'
- mod_facl/0.4: registered 'facl' FS
- loading 'mod_unique_id.c'
- loading 'mod_ifsession.c'
- RELINQUISH PRIVS at mod_core.c:326
- DenyFilter: compiling regex '\*.*/'
- <IfModule>: using 'mod_dynmasq.c' section at line 52
- ROOT PRIVS at mod_log.c:537
- RELINQUISH PRIVS at mod_log.c:542
- <IfModule>: using 'mod_quotatab.c' section at line 92
- <IfModule>: using 'mod_ratio.c' section at line 96
- <IfModule>: using 'mod_delay.c' section at line 104
- <IfModule>: using 'mod_ctrls.c' section at line 108
- ROOT PRIVS at mod_ctrls.c:110
- RELINQUISH PRIVS at mod_ctrls.c:112
- <IfModule>: using 'mod_ctrls_admin.c' section at line 116
192.168.20.99 -
192.168.20.99 - Config for Servodor FTP:
192.168.20.99 - IdentLookups
192.168.20.99 - ServerIdent
192.168.20.99 - DeferWelcome
192.168.20.99 - DefaultServer
192.168.20.99 - ShowSymlinks
192.168.20.99 - DisplayLogin
192.168.20.99 - DisplayChdir
192.168.20.99 - ListOptions
192.168.20.99 - DenyFilter
192.168.20.99 - DefaultRoot
192.168.20.99 - RequireValidShell
192.168.20.99 - MaxClients
192.168.20.99 - MaxClientsPerHost
192.168.20.99 - UserID
192.168.20.99 - UserName
192.168.20.99 - GroupID
192.168.20.99 - GroupName
192.168.20.99 - Umask
192.168.20.99 - DirUmask
192.168.20.99 - AllowOverwrite
192.168.20.99 - TransferLog
192.168.20.99 - QuotaEngine
192.168.20.99 - Ratios
192.168.20.99 - DelayEngine
192.168.20.99 - ROOT PRIVS at mod_delay.c:354
192.168.20.99 - RELINQUISH PRIVS at mod_delay.c:359
192.168.20.99 - mod_lang/0.9: binding to text domain 'proftpd' using locale path '/usr/share/locale'
192.168.20.99 - mod_lang/0.9: using locale files in '/usr/share/locale'
192.168.20.99 - mod_lang/0.9: skipping possible language 'ru': not supported by setlocale(3); see `locale -a'
192.168.20.99 - mod_lang/0.9: skipping possible language 'ko_KR': not supported by setlocale(3); see `locale -a'
192.168.20.99 - mod_lang/0.9: skipping possible language 'zh_TW': not supported by setlocale(3); see `locale -a'
192.168.20.99 - mod_lang/0.9: skipping possible language 'en_US': not supported by setlocale(3); see `locale -a'
192.168.20.99 - mod_lang/0.9: skipping possible language 'it': not supported by setlocale(3); see `locale -a'
192.168.20.99 - mod_lang/0.9: skipping possible language 'fr_FR': not supported by setlocale(3); see `locale -a'
192.168.20.99 - mod_lang/0.9: skipping possible language 'zh_CN': not supported by setlocale(3); see `locale -a'
192.168.20.99 - mod_lang/0.9: skipping possible language 'bg_BG': not supported by setlocale(3); see `locale -a'
192.168.20.99 - mod_lang/0.9: skipping possible language 'ja_JP': not supported by setlocale(3); see `locale -a'
192.168.20.99 - SETUP PRIVS at main.c:3134
192.168.20.99 - ROOT PRIVS at main.c:2158
192.168.20.99 - RELINQUISH PRIVS at main.c:2165
192.168.20.99 - ROOT PRIVS at main.c:2493
192.168.20.99 - deleting existing scoreboard '/var/run/proftpd.scoreboard'
192.168.20.99 - opening scoreboard '/var/run/proftpd.scoreboard'
192.168.20.99 - RELINQUISH PRIVS at main.c:2519
192.168.20.99 - ROOT PRIVS at mod_ctrls_admin.c:1180
192.168.20.99 - opening scoreboard '/var/run/proftpd.scoreboard'
192.168.20.99 - RELINQUISH PRIVS at mod_ctrls_admin.c:1182
192.168.20.99 - ROOT PRIVS at inet.c:348
192.168.20.99 - RELINQUISH PRIVS at inet.c:392
192.168.20.99 - Failed binding to ::, port 21: Endereço já em uso
192.168.20.99 - Check the ServerType directive to ensure you are configured correctly.
192.168.20.99 - ROOT PRIVS at mod_delay.c:1328
192.168.20.99 - RELINQUISH PRIVS at mod_delay.c:1333



6. Solução paliativa.

marx cavalcante monteiro
kmmx

(usa Debian)

Enviado em 02/12/2012 - 01:52h

root@debian:~# ftp localhost
Connected to localhost.
421 Service not available, remote server has closed connection
ftp> quit
root@debian:~# lsof -i :21
COMMAND PID USER FD TYPE DEVICE SIZE/OFF NODE NAME
inetd 919 root 4u IPv4 3597 0t0 TCP *:ftp (LISTEN)
root@debian:~# kill -9 919
root@debian:~# service proftpd restart
Stopping ftp server: proftpd.
Starting ftp server: proftpd.
root@debian:~# lsof -i :21
COMMAND PID USER FD TYPE DEVICE SIZE/OFF NODE NAME
proftpd 1408 proftpd 1u IPv6 5034 0t0 TCP *:ftp (LISTEN)
root@debian:~# ftp localhost
Connected to localhost.
220 Bem-vindo ao Servidor-FPT.
Name (localhost:usuario): usuario

Mas quando reinicia o sistema, o bloqueio volta.

Alguem sabe como resolver?


7. Solução sem saber das consequências

marx cavalcante monteiro
kmmx

(usa Debian)

Enviado em 02/12/2012 - 03:13h

o ProFTPd voltou a funcionar da seguite forma:

no arquivo vim /etc/inetd.conf, comentei a linha:

#ftp stream tcp nowait root /usr/sbin/tcpd /usr/sbin/proftpd

root@debian:~# vim /etc/inetd.conf

# /etc/inetd.conf: see inetd(8) for further informations.
#
# Internet superserver configuration database
#
#
# Lines starting with "#:LABEL:" or "#<off>#" should not
# be changed unless you know what you are doing!
#
# If you want to disable an entry so it isn't touched during
# package updates just comment it out with a single '#' character.
#
# Packages should modify this file by using update-inetd(8)
#
# <service_name> <sock_type> <proto> <flags> <user> <server_path> <args>
#
#:INTERNAL: Internal services
#discard stream tcp nowait root internal
#discard dgram udp wait root internal
#daytime stream tcp nowait root internal
#time stream tcp nowait root internal

#:STANDARD: These are standard services.
#ftp stream tcp nowait root /usr/sbin/tcpd /usr/sbin/proftpd

#:BSD: Shell, login, exec and talk are BSD protocols.

#:MAIL: Mail, news and uucp services.
imap2 stream tcp nowait root /usr/sbin/tcpd /usr/sbin/imapd
imaps stream tcp nowait root /usr/sbin/tcpd /usr/sbin/imapd
pop-3 stream tcp nowait root /usr/sbin/tcpd /usr/sbin/in.qpopper -f /etc/qpopper.conf

#:INFO: Info services

#:BOOT: TFTP service is provided primarily for booting. Most sites
# run this only on machines acting as "boot servers."

#:RPC: RPC based services

#:HAM-RADIO: [*****]-radio services

#:OTHER: Other services
#<off># netbios-ssn stream tcp nowait root /usr/sbin/tcpd /usr/sbin/smbd
swat stream tcp nowait.400 root /usr/sbin/tcpd /usr/sbin/swat


Tentei trocar o usuário root por proftpd, mas não deu certo ao reinicializar.

Alguém sabe me dizer se isto vai dar problema(s) no futuro?


8. Acesso Externo

marx cavalcante monteiro
kmmx

(usa Debian)

Enviado em 02/12/2012 - 03:59h

O meu ProFTPd está sem acesso externo.
Coloquei a máquina como DMZ no doteador, mesmo assim setei a a porta 21 para ele.
Mesmo assim não funciona.

O meu iptables está assim:

root@debian:~# iptables -L
Chain INPUT (policy ACCEPT)
target prot opt source destination
LOG all -- anywhere anywhere LOG level debug prefix `BANDWIDTH_IN:'

Chain FORWARD (policy ACCEPT)
target prot opt source destination
LOG all -- anywhere anywhere LOG level debug prefix `BANDWIDTH_OUT:'
LOG all -- anywhere anywhere LOG level debug prefix `BANDWIDTH_IN:'

Chain OUTPUT (policy ACCEPT)
target prot opt source destination
LOG all -- anywhere anywhere LOG level debug prefix `BANDWIDTH_OUT:'


fiz um sniffer com o tcpdump na pota 21:

root@debian:~# tcpdump -vv dst port 21
tcpdump: listening on eth0, link-type EN10MB (Ethernet), capture size 65535 bytes
03:48:21.163675 IP (tos 0x88, ttl 53, id 10484, offset 0, flags [DF], proto TCP (6), length 60)
187-24-5-75.3g.claro.net.br.40715 > debian.KmmX.ftp: Flags [S], cksum 0x51b5 (correct), seq 3013312231, win 14600, options [mss 1460,sackOK,TS val 2119187 ecr 0,nop,wscale 4], length 0
03:48:23.995228 IP (tos 0x88, ttl 53, id 10485, offset 0, flags [DF], proto TCP (6), length 60)
187-24-5-75.3g.claro.net.br.40715 > debian.KmmX.ftp: Flags [S], cksum 0x4f5c (correct), seq 3013312231, win 14600, options [mss 1460,sackOK,TS val 2119788 ecr 0,nop,wscale 4], length 0
03:48:30.835063 IP (tos 0x88, ttl 53, id 10486, offset 0, flags [DF], proto TCP (6), length 60)
187-24-5-75.3g.claro.net.br.40715 > debian.KmmX.ftp: Flags [S], cksum 0x4aa8 (correct), seq 3013312231, win 14600, options [mss 1460,sackOK,TS val 2120992 ecr 0,nop,wscale 4], length 0
03:48:42.062742 IP (tos 0x88, ttl 53, id 10487, offset 0, flags [DF], proto TCP (6), length 60)
187-24-5-75.3g.claro.net.br.40715 > debian.KmmX.ftp: Flags [S], cksum 0x4140 (correct), seq 3013312231, win 14600, options [mss 1460,sackOK,TS val 2123400 ecr 0,nop,wscale 4], length 0
^C
4 packets captured
4 packets received by filter
0 packets dropped by kernel
root@debian:~# tcpdump -vv src port 21
tcpdump: listening on eth0, link-type EN10MB (Ethernet), capture size 65535 bytes
03:49:14.362614 IP (tos 0x0, ttl 64, id 0, offset 0, flags [DF], proto TCP (6), length 60)
debian.KmmX.ftp > 187-24-5-75.3g.claro.net.br.40319: Flags [S.], cksum 0xe005 (correct), seq 2301723679, ack 901073419, win 5792, options [mss 1460,sackOK,TS val 1446333 ecr 2129731,nop,wscale 6], length 0
03:49:16.726925 IP (tos 0x0, ttl 64, id 0, offset 0, flags [DF], proto TCP (6), length 60)
debian.KmmX.ftp > 187-24-5-75.3g.claro.net.br.40319: Flags [S.], cksum 0xddb6 (correct), seq 2301723679, ack 901073419, win 5792, options [mss 1460,sackOK,TS val 1446924 ecr 2129731,nop,wscale 6], length 0
03:49:17.760307 IP (tos 0x0, ttl 64, id 0, offset 0, flags [DF], proto TCP (6), length 60)
debian.KmmX.ftp > 187-24-5-75.3g.claro.net.br.40319: Flags [S.], cksum 0xdcb3 (correct), seq 2301723679, ack 901073419, win 5792, options [mss 1460,sackOK,TS val 1447183 ecr 2129731,nop,wscale 6], length 0
03:49:23.429307 IP (tos 0x0, ttl 64, id 0, offset 0, flags [DF], proto TCP (6), length 60)
debian.KmmX.ftp > 187-24-5-75.3g.claro.net.br.40319: Flags [S.], cksum 0xd72a (correct), seq 2301723679, ack 901073419, win 5792, options [mss 1460,sackOK,TS val 1448600 ecr 2129731,nop,wscale 6], length 0
03:49:24.160262 IP (tos 0x0, ttl 64, id 0, offset 0, flags [DF], proto TCP (6), length 60)
debian.KmmX.ftp > 187-24-5-75.3g.claro.net.br.40319: Flags [S.], cksum 0xd673 (correct), seq 2301723679, ack 901073419, win 5792, options [mss 1460,sackOK,TS val 1448783 ecr 2129731,nop,wscale 6], length 0
03:49:35.477591 IP (tos 0x0, ttl 64, id 0, offset 0, flags [DF], proto TCP (6), length 60)
debian.KmmX.ftp > 187-24-5-75.3g.claro.net.br.40319: Flags [S.], cksum 0xcb66 (correct), seq 2301723679, ack 901073419, win 5792, options [mss 1460,sackOK,TS val 1451612 ecr 2129731,nop,wscale 6], length 0
03:49:36.960283 IP (tos 0x0, ttl 64, id 0, offset 0, flags [DF], proto TCP (6), length 60)
debian.KmmX.ftp > 187-24-5-75.3g.claro.net.br.40319: Flags [S.], cksum 0xc9f3 (correct), seq 2301723679, ack 901073419, win 5792, options [mss 1460,sackOK,TS val 1451983 ecr 2129731,nop,wscale 6], length 0
03:49:54.807819 IP (tos 0x0, ttl 64, id 0, offset 0, flags [DF], proto TCP (6), length 60)
debian.KmmX.ftp > 187-24-5-75.3g.claro.net.br.40715: Flags [S.], cksum 0x75e6 (correct), seq 1435856700, ack 3013312232, win 5792, options [mss 1460,sackOK,TS val 1456444 ecr 2119187,nop,wscale 6], length 0
03:49:55.560277 IP (tos 0x0, ttl 64, id 0, offset 0, flags [DF], proto TCP (6), length 60)
debian.KmmX.ftp > 187-24-5-75.3g.claro.net.br.40715: Flags [S.], cksum 0x7529 (correct), seq 1435856700, ack 3013312232, win 5792, options [mss 1460,sackOK,TS val 1456633 ecr 2119187,nop,wscale 6], length 0
03:49:58.830067 IP (tos 0x0, ttl 64, id 0, offset 0, flags [DF], proto TCP (6), length 60)
debian.KmmX.ftp > 187-24-5-75.3g.claro.net.br.40319: Flags [S.], cksum 0xb498 (correct), seq 2301723679, ack 901073419, win 5792, options [mss 1460,sackOK,TS val 1457450 ecr 2129731,nop,wscale 6], length 0
03:50:00.960286 IP (tos 0x0, ttl 64, id 0, offset 0, flags [DF], proto TCP (6), length 60)
debian.KmmX.ftp > 187-24-5-75.3g.claro.net.br.40319: Flags [S.], cksum 0xb283 (correct), seq 2301723679, ack 901073419, win 5792, options [mss 1460,sackOK,TS val 1457983 ecr 2129731,nop,wscale 6], length 0
^C
11 packets captured
11 packets received by filter
0 packets dropped by kernel
root@debian:~#

Alguém tem alguma idéia do que pode ser feito?


9. Descobri

marx cavalcante monteiro
kmmx

(usa Debian)

Enviado em 14/12/2012 - 23:58h

No .conf do lucaspereira 07/08/2010, aqui no forum mesmo.
Ele informa no tutorial:
"
# Port 21 is the standard FTP port.
Port 2121 # coloquei essa porta, pois a maioria dos provedores de internet bloqueiam a porta 21
"

http://www.vivaolinux.com.br/etc/proftpd.conf-2

Agora sim está funcionando, com outra porta.






Patrocínio

Site hospedado pelo provedor RedeHost.
Linux banner

Destaques

Artigos

Dicas

Tópicos

Top 10 do mês

Scripts