vsftpd, не уважая пассивные настройки в конфигурации

Рабочий стол Ubuntu 16.04 рабочий vsftpd windows server 2012 r2, выполняющий типичный клиент командной строки ftp из окон WAN 10 выполнений типичного клиента командной строки ftp от LAN

vsftpd.conf

# Example config file /etc/vsftpd.conf
#
# 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.
#
# READ THIS: This example file is NOT an exhaustive list of vsftpd options.
# Please read the vsftpd.conf.5 manual page to get a full idea of vsftpd's
# capabilities.
#
#
# Run standalone?  vsftpd can run either from an inetd or as a standalone
# daemon started from an initscript.
listen=NO
#
# This directive enables listening on IPv6 sockets. By default, listening
# on the IPv6 "any" address (::) will accept connections from both IPv6
# and IPv4 clients. It is not necessary to listen on *both* IPv4 and IPv6
# sockets. If you want that (perhaps because you want to listen on specific
# addresses) then you must run two copies of vsftpd with two configuration
# files.
listen_ipv6=YES
#
# Allow anonymous FTP? (Disabled by default).
anonymous_enable=NO
#
# Uncomment this to allow local users to log in.
local_enable=YES
#
# Uncomment this to enable any form of FTP write command.
write_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 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=YES
#
# Uncomment this if you want the anonymous FTP user to be able to create
# new directories.
#anon_mkdir_write_enable=YES
#
# Activate directory messages - messages given to remote users when they
# go into a certain directory.
dirmessage_enable=YES
#
# If enabled, vsftpd will display directory listings with the time
# in  your  local  time  zone.  The default is to display GMT. The
# times returned by the MDTM FTP command are also affected by this
# option.
use_localtime=YES
#
# Activate logging of uploads/downloads.
xferlog_enable=YES
#
# Make sure PORT transfer connections originate from port 20 (ftp-data).
connect_from_port_20=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
#
# You may override where the log file goes if you like. The default is shown
# below.
#xferlog_file=/var/log/vsftpd.log
#
# If you want, you can have your log file in standard ftpd xferlog format.
# Note that the default log file location is /var/log/xferlog in this case.
#xferlog_std_format=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
#
# 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
#
# 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 on some FTP servers, ASCII support allows a denial of service
# attack (DoS) via the command "SIZE /big/file" in ASCII mode. vsftpd
# predicted this attack and has always been safe, reporting the size of the
# raw file.
# ASCII mangling is a horrible feature of the protocol.
#ascii_upload_enable=YES
#ascii_download_enable=YES
#
# You may fully customise the login banner string:
#ftpd_banner=Welcome to blah FTP service.
#
# 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
#
# You may restrict local users to their home directories.  See the FAQ for
# the possible risks in this before using chroot_local_user or
# chroot_list_enable below.
#chroot_local_user=YES
#
# You may specify an explicit list of local users to chroot() to their home
# directory. If chroot_local_user is YES, then this list becomes a list of
# users to NOT chroot().
# (Warning! chroot'ing can be very dangerous. If using chroot, make sure that
# the user does not have write access to the top level directory within the
# chroot)
#chroot_local_user=YES
#chroot_list_enable=YES
# (default follows)
#chroot_list_file=/etc/vsftpd.chroot_list
#
# 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
#
# Customization
#
# Some of vsftpd's settings don't fit the filesystem layout by
# default.
#
# This option should be the name of a directory which is empty.  Also, the
# directory should not be writable by the ftp user. This directory is used
# as a secure chroot() jail at times vsftpd does not require filesystem
# access.
secure_chroot_dir=/var/run/vsftpd/empty
#
# This string is the name of the PAM service vsftpd will use.
pam_service_name=vsftpd
#
# This option specifies the location of the RSA certificate to use for SSL
# encrypted connections.
rsa_cert_file=/etc/ssl/certs/ssl-cert-snakeoil.pem
rsa_private_key_file=/etc/ssl/private/ssl-cert-snakeoil.key
ssl_enable=NO

#
# Uncomment this to indicate that vsftpd use a utf8 filesystem.
#utf8_filesystem=YES

pasv_enable=YES
pasv_min_port=10090
pasv_max_port=10100
pasv_address=<public ip>
#pasv_address=192.168.1.2

#userlist_enable=YES
#userlist_file=/etc/vsftp.user_list
#userlist_deny=NO

при отправке файла от окон 10 клиентов в LAN работают хорошо.

ftp -d 192.168.1.2
connected to 192.168.1.2
220 (vsFTPd 3.0.3)
---> OPTS UTF8 ON
200 Always in UTF8 mode.
User (192.168.1.2:(none)): <username>
---> USER <username>
331 Please specify the password.
Password:
---> PASS <password>
230 Login successful.
ftp> send c:\users\<username>\desktop\testftp.txt
---> PORT 192,168,1,6,196,33
200 PORT command successful. Consider using PASV.
---> STOR testftp.txt
150 Ok to send data.
226 Transfer complete.
ftp: 4 bytes sent in 0.00Seconds 4.00Kbyte/sec.

при отправке файла от сервера 2012 r2 клиент от за пределами LAN не делает.

ftp -d <public ip>
connected to <public ip>
220 (vsFTPd 3.0.3)
User (<public ip>:(none)): <username>
----> USER <username>
331 Please specify the password.
Password:
---> PASS <password>
230 Login successful.
ftp> send c:\users\<username>\desktop\test.txt
---> PORT 192,168,10,38,235,162
502 Active FTP not allowed.
---> STOR test.txt
550 Access is denied.

от того, что я понимаю, порт является aquired путем умножения 5-го октета рядом с---> ПОРТ с 256 затем добавлениями 6-го октета к этому. Таким образом, клиент локальной сети соединяется на порте (196*256) +33 = 50179, В то время как клиент WAN соединяется на порте (235*256) +162 = 60322

Минимальный набор в конфигурации 10090, В то время как максимум 10100

Я также поместил сервер в демилитаризованную зону, которая, казалось, не помогла, но я не слишком обеспокоен этим все же. Я просто хочу разработать, почему это не уважает мой пассивный диапазон портов сначала.

Мое предположение является пассивным режимом, хотя включено в конфигурации, на самом деле не применяется. Так его все еще попытка соединиться в активном режиме. который хорошо работает в LAN. Но не вне LAN, потому что порт на клиенте WAN заблокирован или не передан. Следовательно наличие сервера в демилитаризованной зоне не помогает, потому что это - изменение сети, требуемое на стороне клиента не сервер.

Так..., как я получаю свой FTP-сервер в пассивный режим, когда предложения онлайн не работают? Клиенту должны также сказать использовать пассивный режим? я не могу найти клиентские опции запуска ftp для этого.