这与上一个问题。我有一台充当服务器的机器Windows 7，它托管着几台虚拟机。其中一台Debian Squeezy充当PostgreSQL服务器，我想在同一个虚拟机中添加一个 ftp 服务器（笔记：网络适配器是NAT)。
由于我不知道如何连接PostgreSQL，proftpd我搜索了设置 ftp 服务器的其他方法，并发现本教程来自 ubuntuforums。
我遵循了安全方式（在我的虚拟机中，端口、新用户等与操作指南中的完全相同）并让 ftp 服务器运行。我FileZilla从虚拟机内部启动并使用新用户的凭据连接到 ftp。
现在，我尝试从我的电脑上执行此操作，但收到错误："ECONNREFUSED - Connection refused by server"。
我VirtualBox Administrator修改了的网络设置Debian VM并转发了端口：
主机 IP：虚拟机所在机器的 IP。 访客 IP：虚拟机的内部 IP。
Protocol HOST IP HOST PORT GUEST IP GUEST PORT
----------------------------------------------------------------------
TCP 193.147.83.213 1080 10.0.2.15 1080
TCP 193.147.83.213 1980 10.0.2.15 21
TCP 193.147.83.213 21 10.0.2.15 1980
因为我可以从虚拟机内部连接到 ftp，所以我猜测这与虚拟机和我的电脑之间的通信有关。
你有什么想法？
我需要转发更多端口吗？Windows 防火墙和/或 iptables 也会造成干扰吗？
编辑1：根据@DavidHoude的要求，我使用以下输出更新了问题iptables -L和netstat -a |监听。我必须说的配置iptables和我在 vm 中找到的一样，我没有做任何改变。
ipbles -l 复制代码
Chain INPUT (policy ACCEPT)
target prot opt source destination
Chain FORWARD (policy ACCEPT)
target prot opt source destination
Chain OUTPUT (policy ACCEPT)
target prot opt source destination
netstat -a |监听
tcp 0 0 localhost:ipp *:* LISTEN
tcp6 0 0 localhost:ipp [::]:* LISTEN
tcp6 0 0 [::]:1980 [::]:* LISTEN
unix 2 [ ACC ] STREAM LISTENING 4563 /tmp/.X11-unix/X0
unix 2 [ ACC ] STREAM LISTENING 6328 /tmp/ssh-EFteMx1139/agent.1139
unix 2 [ ACC ] STREAM LISTENING 6370 /tmp/.ICE-unix/1139
unix 2 [ ACC ] STREAM LISTENING 6390 /tmp/orbit-a/linc-4d1-0-262fd8c7bf7a5
unix 2 [ ACC ] STREAM LISTENING 6635 /tmp/orbit-a/linc-473-0-7e706cd3d32d5
unix 2 [ ACC ] STREAM LISTENING 6761 /tmp/keyring-GWAtQJ/pkcs11
unix 2 [ ACC ] STREAM LISTENING 9031 /tmp/orbit-a/linc-5ac-0-614ad9120e41
unix 2 [ ACC ] STREAM LISTENING 9095 /tmp/orbit-a/linc-5b2-0-247b523c8e0b
unix 2 [ ACC ] STREAM LISTENING 5971 /tmp/keyring-GWAtQJ/control
unix 2 [ ACC ] STREAM LISTENING 6767 /tmp/keyring-GWAtQJ/ssh
unix 2 [ ACC ] STREAM LISTENING 6782 /tmp/orbit-a/linc-4d8-0-76e5819d5f759
unix 2 [ ACC ] STREAM LISTENING 4377 /var/run/cups/cups.sock
unix 2 [ ACC ] STREAM LISTENING 3865 /var/run/acpid.socket
unix 2 [ ACC ] STREAM LISTENING 7501 /tmp/orbit-a/linc-4e7-0-bece60f85ca
unix 2 [ ACC ] STREAM LISTENING 7334 /tmp/.esd-1000/socket
unix 2 [ ACC ] STREAM LISTENING 7337 /home/a/.pulse/7624943c4bf56849714f10145193c093-runtime/native
unix 2 [ ACC ] STREAM LISTENING 7443 /tmp/orbit-a/linc-4fd-0-c6f9eb936d6
unix 2 [ ACC ] STREAM LISTENING 7516 /tmp/orbit-a/linc-4e5-0-1fec0a3016600
unix 2 [ ACC ] STREAM LISTENING 7579 /tmp/orbit-a/linc-4f7-0-32a7a613dbfdf
unix 2 [ ACC ] STREAM LISTENING 7603 /tmp/orbit-a/linc-4fc-0-42c73bd03fa7f
unix 2 [ ACC ] STREAM LISTENING 7682 /tmp/orbit-a/linc-4e1-0-273dbd256f377
unix 2 [ ACC ] STREAM LISTENING 7938 /tmp/orbit-a/linc-55a-0-27cffa947264b
unix 2 [ ACC ] STREAM LISTENING 8030 /tmp/orbit-a/linc-55b-0-27dc07accde53
unix 2 [ ACC ] STREAM LISTENING 8326 /tmp/orbit-a/linc-570-0-2805454d11289
unix 2 [ ACC ] STREAM LISTENING 8333 /tmp/orbit-a/linc-566-0-16563300170a4
unix 2 [ ACC ] STREAM LISTENING 8335 /tmp/orbit-a/linc-567-0-2da4230a172b8
unix 2 [ ACC ] STREAM LISTENING 4395 /var/run/proftpd/proftpd.sock
unix 2 [ ACC ] STREAM LISTENING 8338 /tmp/orbit-a/linc-573-0-4a085d80176ac
unix 2 [ ACC ] STREAM LISTENING 8351 /tmp/orbit-a/linc-572-0-4206a1b81f802
unix 2 [ ACC ] STREAM LISTENING 8414 /tmp/orbit-a/linc-571-0-6c1f35c65e634
unix 2 [ ACC ] STREAM LISTENING 8443 /tmp/orbit-a/linc-4df-0-8dc2a346fe5f
unix 2 [ ACC ] STREAM LISTENING 8554 /tmp/orbit-a/linc-581-0-797b154e59d83
unix 2 [ ACC ] STREAM LISTENING 8587 /tmp/orbit-a/linc-584-0-1c5fd995d9a9a
unix 2 [ ACC ] STREAM LISTENING 9275 /tmp/orbit-a/linc-5cf-0-5f48faccd63f5
unix 2 [ ACC ] STREAM LISTENING 4403 /var/run/proftpd/proftpd.sock
unix 2 [ ACC ] STREAM LISTENING 2334 @/com/ubuntu/upstart
unix 2 [ ACC ] STREAM LISTENING 5450 @/var/run/hald/dbus-NI6LFIbNzq
unix 2 [ ACC ] STREAM LISTENING 5455 @/var/run/hald/dbus-87f9eAAnp3
unix 2 [ ACC ] STREAM LISTENING 3412 /var/run/dbus/system_bus_socket
unix 2 [ ACC ] STREAM LISTENING 4562 @/tmp/.X11-unix/X0
unix 2 [ ACC ] STREAM LISTENING 6369 @/tmp/.ICE-unix/1139
unix 2 [ ACC ] STREAM LISTENING 3489 /var/run/avahi-daemon/socket
unix 2 [ ACC ] STREAM LISTENING 4781 @/tmp/gdm-session-UHdjqzQA
unix 2 [ ACC ] STREAM LISTENING 4639 @/tmp/gdm-greeter-mvMQrpxI
unix 2 [ ACC ] STREAM LISTENING 6341 @/tmp/dbus-KUrgd752tT
编辑2：根据@dusan.bajic 的建议，我将其添加MasqueradeAddress 193.147.83.213到proftpd.conf文件中。
现在 FileZilla 输出以下内容：
Estado: Connecting to 193.147.83.213:1980...
Estado: Connection established, waiting for welcoming message...
Error: Couldn't connect to server
我可能会说我在 Windows 机器上使用 FileZilla，如下所示：
Server: 193.147.83.213
User: sauron
Port: 1980
编辑2：
@dusan.bajic 说得有道理。我禁用了防火墙，然后发生了以下情况：
Resposne: 331 Password required for sauron
Command: PASS ******
Response: 230 welcome !!!
Command: SYST
Response: 215 UNIX Type: L8
Command: FEAT
Response: 211-Features:
Response: MDTM
Response: MFMT
Response: UTF8
Response: LANG en-US.utf8*
Response: MFF modify;UNIX.group;UNIX.mode;
Response: MLST modify*;perm*;size*;type*;unique*;UNIX.group*;UNIX.mode*;UNIX.owner*;
Response: REST STREAM
Response: SIZE
Response: 211 End
Command: OPTS UTF8 ON
Response: 200 UTF8 set to on
Status: Connected
Status: Retrieving directory listing...
Command: PWD
Response: 257 "/" is the current directory
Command: TYPE I
Response: 200 Type set to I
Command: PASV
Response: 227 Entering Passive Mode (193,147,83,213,152,251).
Command: MLSD
Error: Connection timeout exceeded
Error: Error retrieving directory listing
因此看起来它已经连接了，但是在输入时passive mode（顺便问一下，括号里的数字是什么？端口？）