mjhjmtu

I have an Ubuntu server, it's 3TB HDD space total and 24GB RAM, I want to take 1 little bit of space and RAM to make VPS Windows using VirtualBox or KVM.

I want to install Windows Server 2008 on VirtualBox OR KVM, and I want to remote desktop from my home PC directly to the VPS I create with Vitualbox, and with network on.

But after searching internet for 2 days, I couldn't make it work, especially for the network part.

Here is my /etc/network/interfaces file :

Hetzner Online AG - installimage
 Loopback device:
auto lo
iface lo inet loopback
 device: eth0
 auto eth0

iface eth0 inet static
 address 46.4.21.70
 broadcast 46.4.21.127
 netmask 255.255.255.192
 gateway 46.4.21.65
 # default route to access subnet
 up route add -net 46.4.21.64 netmask 255.255.255.192 gw 46.4.21.65 eth0
iface eth0 inet6 static
 address 2a01:4f8:131:410c::2
 netmask 64
 gateway fe80::1

The ifconfig command:

eth0 Link encap:Ethernet HWaddr 6c:62:6d:7a:e8:62
 inet addr:46.4.21.70 Bcast:46.4.21.127 Mask:255.255.255.192
 inet6 addr: fe80::6e62:6dff:fe7a:e862/64 Scope:Link
 inet6 addr: 2a01:4f8:131:410c::2/64 Scope:Global
 UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
 RX packets:302059 errors:0 dropped:0 overruns:0 frame:0
 TX packets:102335 errors:0 dropped:0 overruns:0 carrier:0
 collisions:0 txqueuelen:1000
 RX bytes:392562631 (392.5 MB) TX bytes:10964261 (10.9 MB)

lo Link encap:Local Loopback
 inet addr:127.0.0.1 Mask:255.0.0.0
 inet6 addr: ::1/128 Scope:Host
 UP LOOPBACK RUNNING MTU:65536 Metric:1
 RX packets:42736 errors:0 dropped:0 overruns:0 frame:0
 TX packets:42736 errors:0 dropped:0 overruns:0 carrier:0
 collisions:0 txqueuelen:0
 RX bytes:3754256 (3.7 MB) TX bytes:3754256 (3.7 MB)

The IP 46.4.21.70 is my Ubuntu server IP.

I tried set up network for the Virtualbox using NAT : could connect to the internet if using Virtualbox start from it, but I heard people say NAT can't be seen by outside world.

I tried selected Bridged Adapter :
http://ultraimg.com/images/Capture87cc9.jpg
:
No internet access and here is the ipconfig I did on Windows server in Virtualbox
http://ultraimg.com/images/Capture17e8de.jpg

I think this would work, though I do this for ssh into a Linux VM and not rdesktop. The principle is the same though. In VirtualBox, go into Settings -> Network for your VM and click Port Forwarding.

There you set up a rule with Protocol=TCP and Guest Port the default port for rdesktop. Sorry I don't know that number, the man page for rdesktop doesn't say. Host Port could be set to the same, unless it's some low number that the Ubuntu host already uses. Then when you connect to the Ubuntu host on that port it will be forwarded to the port in the VM. If you use another Host Port, you will need to add :port to your rdesktop command.

As one comment said you should also need to use NAT, in the Network settings you'll see Attatched to: and a drop down menu.

With Bridged Adapter - Assign Ip address to your Windows Server, which is of range 46.4.21.66 - 46.4.21.126. As this was Ubuntu Server's IP range assigned to interface eth0.
Advantage of bridged adapter will brings the device to your LAN network.

In case if you don't find free IP's of mentioned IP range. There is different method.
Allocate two Network Interfaces to Windows VM

Adapter 1 (host-vm access)- "Host Only Adapter" (IP assigns automatically via DHCP)

Adapter 2 (for internet) - "NAT" (IP assigns automatically via DHCP)

Access the windows vm from Ubuntu(rdesktop) with IP address which got assigned to adapter 1 in windows vm

Follow steps here to enable Host only adapter in Ubuntu