Ayuda con Proftpd

Imagen de Ncoolas
0 puntos

Hola, soy nuevo, en primer lugar me llamo Nicolás y he montado un servidor con Ubuntu Server 8.04 en mi pc antinguo pero he instalado el proftpd pero me surje un problema de seguridad, al conectarme salen todo el sistema de archivos de Ubuntu, no lo puedo modificar pero me gustaria que no saliese.

Imagen:

http://img374.imageshack.us/img374/259/trytdsm4.jpg

(Perdonad que use windows vista en este pc jejeje)

A continuacion os subo el archivo de configuracion de proftpd:

#
# /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

ServerName			"Debian"
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			/var/www/

# 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

# 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				serverftp
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

# Choose a SQL backend among MySQL or PostgreSQL.
# Both modules are loaded in default configuration, so you have to specify the backend 
# or comment out the unused module in /etc/proftpd/modules.conf.
# Use 'mysql' or 'postgres' as possible values.
#
#
# SQLBackend			mysql
#

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

# A basic anonymous configuration, no upload directories.

# 
#   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
#   DisplayFirstChdir		.message
# 
#   # Limit WRITE everywhere in the anonymous chroot
#   
#     
#       DenyAll
#     
#   
# 
#   # Uncomment this if you're brave.
#   # 
#   #   # Umask 022 is a good standard umask to prevent new files and dirs
#   #   # (second parm) from being group and world writable.
#   #   Umask				022  022
#   #            
#   #            DenyAll
#   #            
#   #            
#   #            AllowAll
#   #            
#   # 
# 
# 

DefaultRoot lo configure asi pero sigue pasando lo mismo.

Gracias por la ayuda

Imagen de gotxa
+1
0
-1

si te conectas vía sftp (conexión ftp segura) se utiliza ssh y esa directiva no es efectiva sin hacer unas cuantas cosillas:
http://www.esdebian.org/foro/19563/proftpd-modo-seguro

y si no, combina con DefaultChdir, asegurate de que el usuario ftp tiene su home... debiera funcionar, diría yo.
http://www.proftpd.org/docs/directives/linked/config_ref_DefaultRoot.html
http://www.proftpd.org/docs/directives/linked/config_ref_DefaultChdir.html
http://www.proftpd.org/localsite/Userguide/linked/chroot.html
http://www.proftpd.org/docs/faq/linked/faq-ch5.html#AEN524

GoTXa
linux counter #116453
Si cree que la capacitación es cara, pruebe con la ignorancia.

+1
0
-1

GoTXa
linux counter #116453
Klaatu barada nikto

Imagen de Ncoolas
+1
0
-1

Ya lo solucione resulta que habia que quitarle el # de delante de DefaultRoot

Dejandolo asi:

DefaultRoot /var/www/

Por cierto, no utilizaba conexion segura.

Muchas gracias de todos modos.

+1
0
-1