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COMO MONTAR EL FTP SERVER en SuSE Linux 7.0

COMO MONTAR EL FTP SERVER


GENERALIDADES

En realidad no soy un Héroe, lo hizo un paquete rpm de SuSE, y lo que yo hice fue descomentar líneas de texto para habilitar opciones, Lo más importante fue el directorio incoming que es promiscuo. Se puede Leer Escribir, pero no Borrar.


CONFIGURACION DEL PROFTPD



El Archivo principal

Y el archivo contiene losiguiente:


# This is a basic ProFTPD configuration file. It establishes a single
# server and a single anonymous login. It assumes that you have a
# user/group "nobody"/"nogroup" for normal operation and anon.

#    !!! PLEASE read the documentation of proftpd !!!
#
# You can find the documentation in /usr/doc/packages/proftpd/,
# http://www.proftpd.org/ and don't forget to read carefully
# and _follow_ hints on http://www.proftpd.net/security.html.

ServerName			"CyberGus FTP"
#ServerType			inetd
ServerType			standalone
ServerAdmin			ftpadm@localhost
#
# uncomment, if you want to hide the servers name:
#
#ServerIdent			on	"FTP Server ready"
DeferWelcome			off
DefaultServer			on

# Enable PAM for authentication...
#
AuthPAM				on

# Setting this directive to on will cause authentication to fail
# if PAM authentication fails. The default setting, off, allows
# other modules and directives such as AuthUserFile and friends
# to authenticate users.
#
#AuthPAMAuthoritative		off

# This directive allows you to specify the PAM service name used
# in authentication (default is "proftpd" on SuSE Linux).
# You have to setup the service in the /etc/pam.d/<other_name>.
#
#AuthPAMConfig			<other_name>

# Port 21 is the standard FTP port.
Port				21

# disable listen on 0.0.0.0:21 - the port (and IP) should
# be specified explicitly in each VirtualHost definition
#
#Port                           0

# listen for each (additional) address explicitly that is
# specified (via Bind and Port) in a VirtualHost definition
#
#SocketBindTight                        on


# Umask 022 is a good standard umask to prevent new dirs
# and files from being group and world writable.
Umask				022

# Set the user and group that the server normally runs at.
User				nobody
Group				nogroup

# Normally, we want files to be overwriteable.
<Directory /*>
  AllowOverwrite		on
  HiddenStor			on
  #HideNoAccess			on
</Directory>

# protect .ftpaccess and similar - see also PathDenyFilter
<Directory /.*>
  <Limit ALL>
    DenyAll
    IgnoreHidden		on
  </Limit>
</Directory>

# It is a very good idea to allow only filenames containing normal
# alphanumeric characters for uploads (and not shell code...)
#PathAllowFilter "^[a-zA-Z0-9_.-]+$"
#PathAllowFilter "^[a-zA-Z0-9 _.-]+$"

# We don't want .ftpaccess or .htaccess files to be uploaded
#PathDenyFilter "(\.ftp)|(\.ht)[a-z]+$"
#PathDenyFilter "\.ftp[a-z]+$"

# Do not allow to pass printf-Formats (security! see documentation!):
#AllowFilter "^[a-zA-Z0-9@~ /,_.-]*$"
DenyFilter  "%"

# 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

# Performance: skip DNS resolution when we process the logs...
#UseReverseDNS        off

# Turn off Ident lookups
#IdentLookups         off

# Set the maximum number of seconds a data connection is allowed
# to "stall" before being aborted.
TimeoutStalled                  300

# Where do we put the pid files?
ScoreboardPath       /var/run/proftpd

#
# Logging options
#
TransferLog          /var/log/xferlog

# Some logging formats
#
#LogFormat            default "%h %l %u %t \"%r\" %s %b"
#LogFormat            auth    "%v [%P] %h %t \"%r\" %s"
LogFormat            write   "%h %l %u %t \"%r\" %s %b"

# Log file/dir access
ExtendedLog          /var/log/proftpd.access_log    WRITE,READ write

# Record all logins
ExtendedLog          /var/log/proftpd.auth_log      AUTH auth

# Paranoia logging level....
ExtendedLog          /var/log/proftpd.paranoid_log  ALL default

#
# Do a chroot for web-users (i.e. public or www group), but
# do not change root if the user is also in the users group...
#
#DefaultRoot ~/public_html       public,!users
#

# Limit login attempts
#MaxLoginAttempts                3

# Users needs a valid shell
#RequireValidShell               yes

#
# Use special Auth files instead....
#
#AuthUserFile                    /var/proftpd/authfiles/passwd
#AuthGroupFile                   /var/proftpd/authfiles/group

#
# Use LDAP server - see README.LDAP
#
#LDAPServer         "localhost"
#LDAPPrefix         "dc=your,dc=domain,dc=top"
#LDAPDN             "cn=YourDNUser,dc=your,dc=domain,dc=top"
#LDAPDNPass         "YourDNUserPassword"


# The ratio directives take four numbers: file ratio, initial file
# credit, byte ratio, and initial byte credit.  Setting either ratio
# to 0 disables that check.
#
# The directives are HostRatio (matches FQDN -- wildcards are allowed
# in this one), AnonRatio (matches password entered in an anon login,
# usually an email address), UserRatio (accepts "*" for 'any user'),
# and GroupRatio.  Matches are looked for in that order.
#
# Some examples:
#
# Ratios     on                                 # enable module
# UserRatio  ftp 0 0 0 0
# HostRatio  anyhost.domain.top 0 0 0 0         # leech access (default)
# GroupRatio proftpd 100 10 5 100000            # 100:1 files, 10 file cred
# AnonRatio  auser@domain.top 1 0 1 0           # 1:1 ratio, no credits
# UserRatio  * 5 5 5 50000                      # special default case
#
# Setting "Ratios on" without configuring anything else will enable
# leech mode: it logs activity and sends status messages to the ftp
# client, but doesn't restrict traffic.


#
# uncomment for anonymous...:
#
<Anonymous ~ftp>
#     # After anonymous login, daemon runs as:
     User			ftp
     Group			public
# 
#     # We want clients to be able to login with "anonymous" as well as "ftp"
     UserAlias			anonymous ftp
#
#     # Limit the maximum number of anonymous logins
     MaxClients		15
#
#     # We want 'welcome.msg' displayed at login, and '.message' displayed
#     # in each newly chdired directory.
     DisplayLogin		msgs/welcome.msg
#     DisplayFirstChdir		.message
     DisplayFirstChdir		msgs/welcome.msg
#
#     # Deny write operations to all directories, underneath root-dir
#     # Default is to allow, so we don't need a <Limit> for read operations.
     <Directory *>
          <Limit WRITE>
               DenyAll
          </Limit>
     </Directory>
#     #
#     # Only uploads into incomming directory are allowed...
     <Directory incoming>
#     #
          Umask  000
#     #
#     #     # ... so deny read/write
#          <Limit READ WRITE DIRS>
#               DenyAll
#          </Limit>
#     #
#     #     # ... allow file storing, but not other writes
          <Limit READ STOR CWD CDUP>
               AllowAll
          </Limit>
#     #
     </Directory>
#
</Anonymous>


LO IMPORTANTE

Lo importante fue dejar prohibidos los comandos de lectura y escritura para todos los otros directorios, si queren ver la documentación del paquete, lo hacen pidiéndola o se la bajan de mi lista. (leer lo de la lista de ICQ). Veamos un cliente de Ftp:



Cliente de FTP

Start Igloo

Entrando al localhost (127.0.0.1) el puntero a la IP sin conexión...



IGLOOPRG.GIF

Haciendo Login

La Lista de Directorios


JUGANDO CON LA CONFIGURACIÓN

Para hacer efectivos los cambios se puede hacer lo siguiente:

killall proftpd
proftpd

Y con esto lo reiniciamos, recuerden que lo tendremos que lanzar en algún archivo de inicio.


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