AndreasMeier
01.11.09, 12:24
Hallo zusammen,
ich hab viel Anleitungen über vsftp gelesen und viel ausprobiert, aber ich hab weiterhin Probleme mit vsftp.
Mein Anliegen ist es, einen FTP-Server einzurichten:
der von intern und extern Daten annehmen kann
Zugriff von extern über DynDNS
Aufruf von vsftp soll über den xinetd laufen, da ich später IP-Ban-Skripte ala DenyHosts oder Fail2Ban einbinden möchte
Anonymous-FTP brauch ich dazu nicht
vsftp-Zugriffe sollen im CHROOT laufen
Zugriff brauch ich nur für einen fiktiven FTP-User mit Passwort (und später mit SSL-Schlüssel o.ä.)
System-User sollen keinen Zugriff erhalten
System ist Debian Lenny.
Das Problem ist, dass zwar der Zugriff von intern auf den FTP-Server funktioniert.
Von Extern hab ich aber keinen Zugriff, obwohl im Router der Port 21, sowie die PassivePort-Range freigegeben ist.
Meine Config für xinetd:
service ftp
{
bind = 192.168.200.2
socket_type = stream
protocol = tcp
user = root
server = /usr/sbin/vsftpd
wait = no
cps = 5 10
disable = no
}
Die vsftpd.conf sieht bis jetzt so aus (Verbesserungen sind noch nicht alle enthalten):
ftp_username=ftp
#
# The default compiled in settings are fairly paranoid. This sample file
# loosens things up a bit, to make the ftp daemon more usable.
# Please see vsftpd.conf.5 for all compiled in defaults.
#
# General Settings
#
# Uncomment this to enable any form of FTP write command.
#
write_enable=YES
#
# Activate directory messages - messages given to remote users when they
# go into a certain directory.
#
dirmessage_enable=NO
# If set to NO, all directory list commands will give permission denied
dirlist_enable=YES
#
#
# It is recommended that you define on your system a unique user which the
# ftp server can use as a totally isolated and unprivileged user.
#
#nopriv_user=ftpsecure
#
# You may fully customise the login banner string:
#
ftpd_banner=Wilkommen zum FTP-Server
#
# You may activate the "-R" option to the builtin ls. This is disabled by
# default to avoid remote users being able to cause excessive I/O on large
# sites. However, some broken FTP clients such as "ncftp" and "mirror" assume
# the presence of the "-R" option, so there is a strong case for enabling it.
#
ls_recurse_enable=YES
#
# You may specify a file of disallowed anonymous e-mail addresses. Apparently
# useful for combatting certain DoS attacks.
#
#deny_email_enable=YES
#
# (default follows)
#
#banned_email_file=/etc/vsftpd.banned_emails
#
# If enabled, all user and group information in
# directory listings will be displayed as "ftp".
#
hide_ids=YES
# Local FTP user Settings
#
# Uncomment this to allow local users to log in.
#
local_enable=YES
#
# Default umask for local users is 077. You may wish to change this to 022,
# if your users expect that (022 is used by most other ftpd's)
#
local_umask=022
#
# Uncomment to put local users in a chroot() jail in their home directory
# after login.
#
chroot_local_user=YES
#
# You may specify an explicit list of local users to chroot() to their home
# users to NOT chroot().
#
#chroot_list_enable=YES
#
# (default follows)
#
#chroot_list_file=/etc/vsftpd.chroot_list
#
# The maximum data transfer rate permitted, in bytes per second, for
# local authenticated users. The default is 0 (unlimited).
#
local_max_rate=0
# Enable a user list for access to FTP
userlist_enable=YES
userlist_deny=NO
# Anonymus FTP user Settings
#
# Allow anonymous FTP?
#
anonymous_enable=NO
#
# Anonymous users will only be allowed to download files which are
# world readable.
#
anon_world_readable_only=NO
#
# Uncomment this to allow the anonymous FTP user to upload files. This only
# has an effect if the above global write enable is activated. Also, you will
# obviously need to create a directory writable by the FTP user.
#
#anon_upload_enable=NO
#
# Default umask for anonymus users is 077. You may wish to change this to 022,
# if your users expect that (022 is used by most other ftpd's)
#
#anon_umask=022
#
# Uncomment this if you want the anonymous FTP user to be able to create
# new directories.
#
#anon_mkdir_write_enable=NO
#
# Uncomment this to enable anonymus FTP users to perform other write operations
# like deletion and renaming.
#
#anon_other_write_enable=YES
#
# If you want, you can arrange for uploaded anonymous files to be owned by
# a different user. Note! Using "root" for uploaded files is not
# recommended!
#
#chown_uploads=YES
#chown_username=whoever
#
# The maximum data transfer rate permitted, in bytes per second, for anonymous
# authenticated users. The default is 0 (unlimited).
#
anon_max_rate=1
# Log Settings
#
# Log to the syslog daemon instead of using an logfile.
#
#syslog_enable=YES
#
# Uncomment this to log all FTP requests and responses.
#
log_ftp_protocol=YES
#
# Activate logging of uploads/downloads.
#
xferlog_enable=YES
#
# You may override where the log file goes if you like. The default is shown
# below.
#
vsftpd_log_file=/var/log/vsftpd.log
#
# If you want, you can have your log file in standard ftpd xferlog format.
# Note: This disables the normal logging unless you enable dual_log_enable below.
#
xferlog_std_format=NO
#
# You may override where the log file goes if you like. The default is shown
# below.
#
xferlog_file=/var/log/xferlog
#
# Enable this to have booth logfiles. Standard xferlog and vsftpd's own style log.
#
#dual_log_enable=YES
#
# Uncomment this to enable session status information in the system process listing.
#
#setproctitle_enable=YES
# Transfer Settings
#
# Make sure PORT transfer connections originate from port 20 (ftp-data).
#
connect_from_port_20=YES
#
# You may change the default value for timing out an idle session.
#
idle_session_timeout=600
#
# You may change the default value for timing out a data connection.
#
data_connection_timeout=120
#
# Enable this and the server will recognise asynchronous ABOR requests. Not
# recommended for security (the code is non-trivial). Not enabling it,
# however, may confuse older FTP clients.
#
#async_abor_enable=YES
#
# By default the server will pretend to allow ASCII mode but in fact ignore
# the request. Turn on the below options to have the server actually do ASCII
# mangling on files when in ASCII mode.
# Beware that turning on ascii_download_enable enables malicious remote parties
# to consume your I/O resources, by issuing the command "SIZE /big/file" in
# ASCII mode.
# These ASCII options are split into upload and download because you may wish
# to enable ASCII uploads (to prevent uploaded scripts etc. from breaking),
# without the DoS risk of SIZE and ASCII downloads. ASCII mangling should be
# on the client anyway..
#
#ascii_upload_enable=YES
#ascii_download_enable=YES
#
# Set to NO if you want to disallow the PASV method of obtaining a data
# connection.
#
pasv_enable=YES
pasv_max_port=50010
pasv_min_port=50000
# PAM setting. Do NOT change this unless you know what you do!
#
pam_service_name=vsftpd
# Set listen=YES if you want vsftpd to run standalone
#
listen=NO
listen_address=192.168.200.2
force_dot_files=NO
hide_file={*}
1.Frage: Warum erhalte ich von extern noch keinen Zugriff ?
Liegt das an der vsftpd.conf mit der "listen_address="-Zeile, muss hier die DynDNS-Adresse zusätzlich rein?
Oder liegt das an der "BIND = xxx"-Zeile in der xinetd.conf ?
Danke und Gruß
Andreas
ich hab viel Anleitungen über vsftp gelesen und viel ausprobiert, aber ich hab weiterhin Probleme mit vsftp.
Mein Anliegen ist es, einen FTP-Server einzurichten:
der von intern und extern Daten annehmen kann
Zugriff von extern über DynDNS
Aufruf von vsftp soll über den xinetd laufen, da ich später IP-Ban-Skripte ala DenyHosts oder Fail2Ban einbinden möchte
Anonymous-FTP brauch ich dazu nicht
vsftp-Zugriffe sollen im CHROOT laufen
Zugriff brauch ich nur für einen fiktiven FTP-User mit Passwort (und später mit SSL-Schlüssel o.ä.)
System-User sollen keinen Zugriff erhalten
System ist Debian Lenny.
Das Problem ist, dass zwar der Zugriff von intern auf den FTP-Server funktioniert.
Von Extern hab ich aber keinen Zugriff, obwohl im Router der Port 21, sowie die PassivePort-Range freigegeben ist.
Meine Config für xinetd:
service ftp
{
bind = 192.168.200.2
socket_type = stream
protocol = tcp
user = root
server = /usr/sbin/vsftpd
wait = no
cps = 5 10
disable = no
}
Die vsftpd.conf sieht bis jetzt so aus (Verbesserungen sind noch nicht alle enthalten):
ftp_username=ftp
#
# The default compiled in settings are fairly paranoid. This sample file
# loosens things up a bit, to make the ftp daemon more usable.
# Please see vsftpd.conf.5 for all compiled in defaults.
#
# General Settings
#
# Uncomment this to enable any form of FTP write command.
#
write_enable=YES
#
# Activate directory messages - messages given to remote users when they
# go into a certain directory.
#
dirmessage_enable=NO
# If set to NO, all directory list commands will give permission denied
dirlist_enable=YES
#
#
# It is recommended that you define on your system a unique user which the
# ftp server can use as a totally isolated and unprivileged user.
#
#nopriv_user=ftpsecure
#
# You may fully customise the login banner string:
#
ftpd_banner=Wilkommen zum FTP-Server
#
# You may activate the "-R" option to the builtin ls. This is disabled by
# default to avoid remote users being able to cause excessive I/O on large
# sites. However, some broken FTP clients such as "ncftp" and "mirror" assume
# the presence of the "-R" option, so there is a strong case for enabling it.
#
ls_recurse_enable=YES
#
# You may specify a file of disallowed anonymous e-mail addresses. Apparently
# useful for combatting certain DoS attacks.
#
#deny_email_enable=YES
#
# (default follows)
#
#banned_email_file=/etc/vsftpd.banned_emails
#
# If enabled, all user and group information in
# directory listings will be displayed as "ftp".
#
hide_ids=YES
# Local FTP user Settings
#
# Uncomment this to allow local users to log in.
#
local_enable=YES
#
# Default umask for local users is 077. You may wish to change this to 022,
# if your users expect that (022 is used by most other ftpd's)
#
local_umask=022
#
# Uncomment to put local users in a chroot() jail in their home directory
# after login.
#
chroot_local_user=YES
#
# You may specify an explicit list of local users to chroot() to their home
# users to NOT chroot().
#
#chroot_list_enable=YES
#
# (default follows)
#
#chroot_list_file=/etc/vsftpd.chroot_list
#
# The maximum data transfer rate permitted, in bytes per second, for
# local authenticated users. The default is 0 (unlimited).
#
local_max_rate=0
# Enable a user list for access to FTP
userlist_enable=YES
userlist_deny=NO
# Anonymus FTP user Settings
#
# Allow anonymous FTP?
#
anonymous_enable=NO
#
# Anonymous users will only be allowed to download files which are
# world readable.
#
anon_world_readable_only=NO
#
# Uncomment this to allow the anonymous FTP user to upload files. This only
# has an effect if the above global write enable is activated. Also, you will
# obviously need to create a directory writable by the FTP user.
#
#anon_upload_enable=NO
#
# Default umask for anonymus users is 077. You may wish to change this to 022,
# if your users expect that (022 is used by most other ftpd's)
#
#anon_umask=022
#
# Uncomment this if you want the anonymous FTP user to be able to create
# new directories.
#
#anon_mkdir_write_enable=NO
#
# Uncomment this to enable anonymus FTP users to perform other write operations
# like deletion and renaming.
#
#anon_other_write_enable=YES
#
# If you want, you can arrange for uploaded anonymous files to be owned by
# a different user. Note! Using "root" for uploaded files is not
# recommended!
#
#chown_uploads=YES
#chown_username=whoever
#
# The maximum data transfer rate permitted, in bytes per second, for anonymous
# authenticated users. The default is 0 (unlimited).
#
anon_max_rate=1
# Log Settings
#
# Log to the syslog daemon instead of using an logfile.
#
#syslog_enable=YES
#
# Uncomment this to log all FTP requests and responses.
#
log_ftp_protocol=YES
#
# Activate logging of uploads/downloads.
#
xferlog_enable=YES
#
# You may override where the log file goes if you like. The default is shown
# below.
#
vsftpd_log_file=/var/log/vsftpd.log
#
# If you want, you can have your log file in standard ftpd xferlog format.
# Note: This disables the normal logging unless you enable dual_log_enable below.
#
xferlog_std_format=NO
#
# You may override where the log file goes if you like. The default is shown
# below.
#
xferlog_file=/var/log/xferlog
#
# Enable this to have booth logfiles. Standard xferlog and vsftpd's own style log.
#
#dual_log_enable=YES
#
# Uncomment this to enable session status information in the system process listing.
#
#setproctitle_enable=YES
# Transfer Settings
#
# Make sure PORT transfer connections originate from port 20 (ftp-data).
#
connect_from_port_20=YES
#
# You may change the default value for timing out an idle session.
#
idle_session_timeout=600
#
# You may change the default value for timing out a data connection.
#
data_connection_timeout=120
#
# Enable this and the server will recognise asynchronous ABOR requests. Not
# recommended for security (the code is non-trivial). Not enabling it,
# however, may confuse older FTP clients.
#
#async_abor_enable=YES
#
# By default the server will pretend to allow ASCII mode but in fact ignore
# the request. Turn on the below options to have the server actually do ASCII
# mangling on files when in ASCII mode.
# Beware that turning on ascii_download_enable enables malicious remote parties
# to consume your I/O resources, by issuing the command "SIZE /big/file" in
# ASCII mode.
# These ASCII options are split into upload and download because you may wish
# to enable ASCII uploads (to prevent uploaded scripts etc. from breaking),
# without the DoS risk of SIZE and ASCII downloads. ASCII mangling should be
# on the client anyway..
#
#ascii_upload_enable=YES
#ascii_download_enable=YES
#
# Set to NO if you want to disallow the PASV method of obtaining a data
# connection.
#
pasv_enable=YES
pasv_max_port=50010
pasv_min_port=50000
# PAM setting. Do NOT change this unless you know what you do!
#
pam_service_name=vsftpd
# Set listen=YES if you want vsftpd to run standalone
#
listen=NO
listen_address=192.168.200.2
force_dot_files=NO
hide_file={*}
1.Frage: Warum erhalte ich von extern noch keinen Zugriff ?
Liegt das an der vsftpd.conf mit der "listen_address="-Zeile, muss hier die DynDNS-Adresse zusätzlich rein?
Oder liegt das an der "BIND = xxx"-Zeile in der xinetd.conf ?
Danke und Gruß
Andreas