我有一台 ubuntu 18.x 服务器。我在服务器上安装了 virtualbox，并使用以下配置了一个新的 VM：这些说明。当我尝试最后一步时，出现错误窗口
我还注意到，当我运行 netstat 时，与我的虚拟机端口关联的 IP 是 0.0.0.0
但是当我nmap在我的服务器 IP 上运行时我得到了这个
PORT STATE SERVICE
22/tcp open ssh
139/tcp open netbios-ssn
445/tcp open microsoft-ds
5001/tcp open commplex-link
最后一行是我的虚拟机的端口号，这是输出$ VboxManage showvmdetails tails（比教程示例详细得多）
Name: tails
Groups: /
Guest OS: Linux 2.6 / 3.x / 4.x (32-bit)
UUID: 7107a87f-4ffb-4c80-9cf9-0bc3ff6c6b4c
Config file: /var/vbox/tails/tails.vbox
Snapshot folder: /var/vbox/tails/Snapshots
Log folder: /var/vbox/tails/Logs
Hardware UUID: 7107a87f-4ffb-4c80-9cf9-0bc3ff6c6b4c
Memory size 1024MB
Page Fusion: disabled
VRAM size: 8MB
CPU exec cap: 100%
HPET: disabled
CPUProfile: host
Chipset: piix3
Firmware: BIOS
Number of CPUs: 1
PAE: enabled
Long Mode: disabled
Triple Fault Reset: disabled
APIC: enabled
X2APIC: enabled
Nested VT-x/AMD-V: disabled
CPUID Portability Level: 0
CPUID overrides: None
Boot menu mode: message and menu
Boot Device 1: DVD
Boot Device 2: DVD
Boot Device 3: HardDisk
Boot Device 4: Not Assigned
ACPI: enabled
IOAPIC: disabled
BIOS APIC mode: APIC
Time offset: 0ms
RTC: local time
Hardw. virt.ext: enabled
Nested Paging: enabled
Large Pages: disabled
VT-x VPID: enabled
VT-x unr. exec.: enabled
Paravirt. Provider: Default
Effective Paravirt. Prov.: KVM
State: running (since 2019-12-11T04:49:39.483000000)
Monitor count: 1
3D Acceleration: disabled
2D Video Acceleration: disabled
Teleporter Enabled: disabled
Teleporter Port: 0
Teleporter Address:
Teleporter Password:
Tracing Enabled: disabled
Allow Tracing to Access VM: disabled
Tracing Configuration:
Autostart Enabled: disabled
Autostart Delay: 0
Default Frontend:
Storage Controller Name (0): tails_SATA
Storage Controller Type (0): IntelAhci
Storage Controller Instance Number (0): 0
Storage Controller Max Port Count (0): 30
Storage Controller Port Count (0): 30
Storage Controller Bootable (0): on
tails_SATA (0, 0): /tmp/tails-amd64-4.1.iso (UUID: b48d5261-170d-4bc8-a1d6-2ee18c29051f)
tails_SATA (1, 0): /var/box/tails.vdi (UUID: 94e4ba64-b33d-4cdf-a37f-959ccd3dcffb)
NIC 1: MAC: 080027B4FB40, Attachment: NAT, Cable connected: on, Trace: off (file: none), Type: 82540EM, Reported speed: 0 Mbps, Boot priority: 0, Promisc Policy: deny, Bandwidth group: none
NIC 1 Settings: MTU: 0, Socket (send: 64, receive: 64), TCP Window (send:64, receive: 64)
NIC 2: disabled
NIC 3: disabled
NIC 4: disabled
NIC 5: disabled
NIC 6: disabled
NIC 7: disabled
NIC 8: disabled
Pointing Device: PS/2 Mouse
Keyboard Device: PS/2 Keyboard
UART 1: disabled
UART 2: disabled
UART 3: disabled
UART 4: disabled
LPT 1: disabled
LPT 2: disabled
Audio: enabled (Driver: ALSA, Controller: AC97, Codec: STAC9700)
Audio playback: disabled
Audio capture: disabled
Clipboard Mode: disabled
Drag and drop Mode: disabled
Session name: headless
Video mode: 720x400x0 at 0,0 enabled
VRDE: enabled (Address 0.0.0.0, Ports 5001, MultiConn: off, ReuseSingleConn: off, Authentication type: null)
VRDE port: 5001
Video redirection: disabled
VRDE property : TCP/Ports = "5001"
VRDE property : TCP/Address = <not set>
OHCI USB: disabled
EHCI USB: disabled
xHCI USB: disabled
USB Device Filters:
<none>
Available remote USB devices:
<none>
Currently Attached USB Devices:
<none>
Bandwidth groups: <none>
Shared folders:<none>
VRDE Connection: not active
Clients so far: 0
Capturing: not active
Capture audio: not active
Capture screens:
Capture file: /var/vbox/tails/tails.webm
Capture dimensions: 1024x768
Capture rate: 512kbps
Capture FPS: 25kbps
Capture options:
Guest:
Configured memory balloon size: 0MB
OS type: Linux26
Additions run level: 0
Guest Facilities:
No active facilities.
我该如何修复此问题以通过 RDP 连接到我的 VM？我真的不知道从哪里开始。我是一名软件开发人员，通常我可以从错误中推断出一些信息，但这并没有告诉我任何事情。问题出在服务器端吗？在主机端？我的网络配置？虚拟盒设置？我的 Windows 权限？我到处寻找一条可遵循的路径。我对网络了解不够，所以我来这里寻求帮助。我也在 Superuser 和 Serverfault 上发过帖子，但没有收到任何回复
答案1
遇到了同样的问题导游你使用了。执行以下操作来修复问题：
启用多连接
sudo VBoxManage modifyvm ubuntu16 --vrdemulticon on
允许端口 5001
sudo ufw allow 5001/tcp
重启
sudo VBoxManage controlvm ubuntu16 savestate
sudo reboot
sudo VBoxManage startvm ubuntu16 --type headless
最后就可以打开微软远程桌面输入IP地址和端口了
PC name: 192.107.123.12:5001
上述操作在装有 Virtual Box 5.2.44 的 Ubuntu 18.04 服务器上对我有效。我认为在装有 Virtual Box 6.1 的 Ubuntu 16.04 上也应该有效。
希望它能有所帮助！
答案2
事实证明，您使用的是 vbox 扩展包的旧版本，且存在错误。您必须更新它。这里是下载页面的链接。
