Question

virtualbox. connect when no router is present

Asked by: ussher

I have set up a virtualbox network.

the setup is 'ubuntu server' setup on top of kubuntu 9.04

The ubuntu server acts as a webserver when i am connected to my home router and the internal PC is assigned an IPaddress.

I can access all the websites on the server via Firefox browser.

When i am not connected to my home router I want to be able to access this server, but cant.

I have assigned it a static ip address so the server is always 192.168.11.5 but unless the router exists, i cant connect to the websites.

How can i access these sites when not connected to the router?

virtualbox 3.06
(also using ehcp on the ubuntu server so setting my /etc/hosts to point to 192.168.11.5 domainname.com  is all i need to do to see the domain when the router exists.)

I have tried many things to get it going, but had success with none.

Thanks.

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Asked On
2009-09-21 at 03:00:52ID24747846
Tags

virtualbox

,

internal network

,

ubuntu

,

linux

Topics

Linux Virtualization

,

Virtualization

Participating Experts
1
Points
0
Comments
6

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Answers

 

by: imanassypovPosted on 2009-09-21 at 10:29:56ID: 25385309

It sounds that your guest virtual box (ubuntu server) is sharing the same ip address as your host machine (kubuntu). You need to switch your networking configuration from 'nat/shared mode' to 'bridged mode' and statically assign a different ip address to your virtual appliance. Once that's done, depending on your firewall, you have to configure a one-to-one network adress translation (NAT) that would point to your virtual box private address. In home firewall setup, you are usually given only one public ip address and your firewall might not allow you to do the NAT. In which case you will have to forward your inbound tcp 80 and tcp 443 ports from your public address to the virtual appliance.

If you have not done any changes on your firewall yet, that is the reason you are not reachable. home firewalls do not forward any inbound ports by default.

 

by: ussherPosted on 2009-09-21 at 13:48:05ID: 25387432

Thanks imanassypov,

I have set the virtual box network settings to:
PCnet-FAST III (Bridged adapter, eth0)

and tried to connect to http://localhost:8080 and also http://192.161.11.5:80 but neither worked. (just times out)

~$ ssh -X -p 2222 localhost
ssh: connect to host localhost port 2222: Connection refused

below is some of the setup commands i used to setup port forwarding.

hopefully you can see where i have gone wrong.  Thanks

VBoxManage setextradata "ubuntu server" "VBoxInternal/Devices/pcnet/0/LUN#0/Config/ftp/HostPort" 2121
VBoxManage setextradata "ubuntu server" "VBoxInternal/Devices/pcnet/0/LUN#0/Config/ftp/GuestPort" 21 
VBoxManage setextradata "ubuntu server" "VBoxInternal/Devices/pcnet/0/LUN#0/Config/ftp/Protocal" TCP
  
VBoxManage setextradata "ubuntu server" "VBoxInternal/Devices/pcnet/0/LUN#0/Config/SSH/HostPort" 2222
VBoxManage setextradata "ubuntu server" "VBoxInternal/Devices/pcnet/0/LUN#0/Config/SSH/GuestPort" 22 
VBoxManage setextradata "ubuntu server" "VBoxInternal/Devices/pcnet/0/LUN#0/Config/SSH/Protocal" TCP 
  
VBoxManage setextradata "ubuntu server" "VBoxInternal/Devices/pcnet/0/LUN#0/Config/http/HostPort" 8080
VBoxManage setextradata "ubuntu server" "VBoxInternal/Devices/pcnet/0/LUN#0/Config/http/GuestPort" 80
VBoxManage setextradata "ubuntu server" "VBoxInternal/Devices/pcnet/0/LUN#0/Config/http/Protocal" TCP 
 
~$ VBoxManage getextradata "ubuntu server" enumerate
VirtualBox Command Line Management Interface Version 3.0.6
(C) 2005-2009 Sun Microsystems, Inc.
All rights reserved.
 
Key: GUI/SaveMountedAtRuntime, Value: yes
Key: GUI/LastCloseAction, Value: shutdown
Key: GUI/LastWindowPostion, Value: 144,193,720,453
Key: GUI/Fullscreen, Value: off
Key: GUI/Seamless, Value: off
Key: GUI/AutoresizeGuest, Value: on
Key: GUI/MiniToolBarAutoHide, Value: on
Key: GUI/ShowMiniToolBar, Value: yes
Key: GUI/MiniToolBarAlignment, Value: bottom
Key: VBoxInternal/Devices/pcnet/0/LUN#0/Config/ftp/HostPort, Value: 2121
Key: VBoxInternal/Devices/pcnet/0/LUN#0/Config/ftp/GuestPort, Value: 21
Key: VBoxInternal/Devices/pcnet/0/LUN#0/Config/ftp/Protocal, Value: TCP
Key: VBoxInternal/Devices/pcnet/0/LUN#0/Config/SSH/HostPort, Value: 2222
Key: VBoxInternal/Devices/pcnet/0/LUN#0/Config/SSH/GuestPort, Value: 22
Key: VBoxInternal/Devices/pcnet/0/LUN#0/Config/SSH/Protocal, Value: TCP
Key: VBoxInternal/Devices/pcnet/0/LUN#0/Config/http/HostPort, Value: 8080
Key: VBoxInternal/Devices/pcnet/0/LUN#0/Config/http/GuestPort, Value: 80
Key: VBoxInternal/Devices/pcnet/0/LUN#0/Config/http/Protocal, Value: TCP

                                              
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by: ussherPosted on 2009-09-21 at 13:55:40ID: 25387510

oops, changed 'protocal' to 'protocol' but still didnt fix anything

~$ VBoxManage getextradata "ubuntu server" enumerateVirtualBox Command Line Management Interface Version 3.0.6
(C) 2005-2009 Sun Microsystems, Inc.
All rights reserved.
 
Key: GUI/SaveMountedAtRuntime, Value: yes
Key: GUI/LastCloseAction, Value: shutdown
Key: GUI/LastWindowPostion, Value: 115,229,720,453
Key: GUI/Fullscreen, Value: off
Key: GUI/Seamless, Value: off
Key: GUI/AutoresizeGuest, Value: on
Key: GUI/MiniToolBarAutoHide, Value: on
Key: GUI/ShowMiniToolBar, Value: yes
Key: GUI/MiniToolBarAlignment, Value: bottom
Key: VBoxInternal/Devices/pcnet/0/LUN#0/Config/ftp/HostPort, Value: 2121
Key: VBoxInternal/Devices/pcnet/0/LUN#0/Config/ftp/GuestPort, Value: 21
Key: VBoxInternal/Devices/pcnet/0/LUN#0/Config/SSH/HostPort, Value: 2222
Key: VBoxInternal/Devices/pcnet/0/LUN#0/Config/SSH/GuestPort, Value: 22
Key: VBoxInternal/Devices/pcnet/0/LUN#0/Config/http/HostPort, Value: 8080
Key: VBoxInternal/Devices/pcnet/0/LUN#0/Config/http/GuestPort, Value: 80
Key: VBoxInternal/Devices/pcnet/0/LUN#0/Config/http/Protocol, Value: TCP
Key: VBoxInternal/Devices/pcnet/0/LUN#0/Config/SSH/Protocol, Value: TCP
Key: VBoxInternal/Devices/pcnet/0/LUN#0/Config/ftp/Protocol, Value: TCP

                                              
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by: ussherPosted on 2009-09-21 at 14:16:40ID: 25387723

this is the contents of the /etc/network/interfaces on the virtual system

 

by: ussherPosted on 2009-10-07 at 00:43:26ID: 25512895

.. no ideas?

 

by: ussherPosted on 2009-10-07 at 02:43:17ID: 25513495

Managed to get it working.  

Host-only adapter for the internal Host<->Guest

then a NAT for the guest to have internet access.

20120131-EE-VQP-002

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