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domingo, 5 de setembro de 2010

Servidor FTP

Publicado por Mateus

E aew galerinha, blz?! Depois de um tempo off, mta correria, estamos de volta e eu falarei aqui como configurar um servidor ftp de uma forma fácil e rápida!!!

Primeiro de tudo: Tenha um PC com Linux, (“obovio”)kkk, conexão com a internet e um poukinhu de paciencia!!!;)

Primeiro de tudo instale o proftpd:

uplinux:~# aptitude install proftpd

Agora edite o arquivo em /etc/proftpd/proftpd.conf

O que eu fiz fikou com esse jeitão:

# /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 “nome_servidor”
ServerType standalone
DeferWelcome off
ServerAdmin root@localhost
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 ~ #Aqui vc coloca a pasta que vc ker q apareça no FTP, nesse caso esta para ser a pasta principal do usuario que ira logar.

# 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 #A porta para acesso EU geralmente mudo…

# 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

# DynMasqRefresh 28800

# 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 2

# Set the user and group that the server normally runs at.
User root
Group root
#Somente um pequeno comentario:  nessas duas linhas cima vc estara logando como root entao é melhor mudar esse campo… ;)

# 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
QuotaEngine off
Ratios off

# 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.

DelayEngine on
ControlsEngine off
ControlsMaxClients 2
ControlsLog /var/log/proftpd/controls.log
ControlsInterval 5
ControlsSocket /var/run/proftpd/proftpd.sock
AdminControlsEngine off

#
# Alternative authentication frameworks
#
#Include /etc/proftpd/ldap.conf
#Include /etc/proftpd/sql.conf

#
# This is used for FTPS connections
#
#Include /etc/proftpd/tls.conf

Mas tem mta coisa q eu deixei q pode ser retirado, por exemplo oq esta comentado!!!;)

Nessas ultimas 3 linhas de configuração do programa (FTPS) é usado para qndo vc quer deixar com uma segurança maior, adote isso caso vc deseje fazer um servidor FTP em uma empresa que tenha mtos dados confidenciais para proteger, etc… e  tem tb o de autenticaçao com base no ldap e sql, caso queiram um dos dois ou os dois comentem no topico que eu farei isso!

Abraços

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20/07/2010

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