0
votes
0answers
14 views

How to add serial port in VM to connect to physical network

I have created VM in Ubuntu server host.This VM in-turn has ubuntu operating system installed on it.Now I want to connect this VM to a physical serial port of a device. My issue is :- How can I ...
0
votes
1answer
33 views

KVM and port security

In my test environment I get everything working perfectly the way I want it. Running Cloudmin KVM instances over a bridged adapter. Then when it comes time to install at the data center I hit a brick ...
0
votes
0answers
127 views

KVM Guest cannot access internet using NAT Network

I have an Ubuntu Server 13.10 configured as a Virtual Machine host, using libvirt and KVM. I have added two virtual machines, both using Ubuntu Server 13.10, one with Mysql and other with Apache/PHP, ...
0
votes
0answers
70 views

KVM and Bridge connection

I have an Ubuntu 12.04 server in a datacenter and it is running KVM. I have virt-manager installed locally on a Macbook Air with parallels. Its installed on Ubuntu 13.10. I have created another ...
0
votes
0answers
29 views

Network-Tools 3.2.0 Idel's at the middle

Network-Tools 3.2.0 Idel's at the middle during traceroute. (gnome-nettool 3.2.0-0ubuntu1) It idel's way too far on google.com. While trace-route command at terminal ends up with different results. ...
13
votes
1answer
2k views

What's the difference between tun/tap vs bridge+vnet vs macvtap? (For virtualization KVM)

I've just found a lot of different ways to do KVM networking. But I'm stuck about what's the right way to do it. I discovered that openstack uses macvtap to do neutron networking. And it looks good. ...
0
votes
1answer
69 views

Linux-KVM “broken” after a motherboard swap

I just had the motherboard replaced in a Dell PowerEdge R410 that functions as one of our virtual servers (running Ubuntu 10.04.3 LTS). I'm fairly new to Linux, and was quite surprised when networking ...
0
votes
1answer
578 views

How to troubleshoot a macvtap network in kvm/virt-manager

I have a virtual machine running under qemu-kvm, on a 13.10 host. I am using virt-manager to define the machine, and I have added a virtual NIC, using the new macvtap driver. I have the following ...
0
votes
0answers
81 views

Ping Access to a Nested VM !! Plz Help

I have a problem in communication between the host and the nested VM. This is my layout. I have installed KVM on host machine having a single nic interface (public ip) running Ubuntu. On top of ...
0
votes
0answers
164 views

Add routing to guest KVM's

I have the following configured on my ubuntu host: virsh config for "passthrough" <network> <name>passthrough</name> ...
0
votes
0answers
312 views

Create PV Guest VM in Ubuntu 12.04 using Xen: “Network autoconfiguration failed”

I am using instructions from here: https://help.ubuntu.com/community/XenProposed http://fosshelp.blogspot.com/2013/03/how-to-create-pv-guest-vm-on-ubuntu.html This is what I get when I type ifconfig: ...
0
votes
0answers
91 views

No internet in VM

I'm behind my company proxy (or more specifically, net configuration stored in a web) and my VM cannot connect to internet. Host is windows 7 enterprise guest is Ubuntu 12.04 LTS in VMPlayer. I can't ...
1
vote
1answer
846 views

Virtual box network problems on windows 7 guest

I have installed Windows 7 (as guest) using Virtual Box on my Ubuntu 13.04 (as host). Everything was OK except some network problems. I have no problem with browsing websites in guest OS (windows 7) ...
1
vote
2answers
6k views

Networking stop/waiting error

I wanted to set up a bridge connection for my VMs (I am using KVM). I modified my etc/network/interfaces file and its contents are: auto lo iface lo inet loopback auto br0 iface br0 inet dhcp ...
0
votes
1answer
62 views

Sharing server to several computers at home

I want to build such a system. I have one new desktop (server with 8 core CPU, 8Gb of RAM and HD7770 GPU) and two clients (old desktop and old laptop) connected using gigabit network. I want to make ...
2
votes
1answer
133 views

Where does Ubuntu store the cache of MAC addresses for interface numbering?

Example: I run Ubu in a VM. I remove and add several network cards. Suddenly, I'm at eth4. I want to migrate this VM to openstack. How can I find/purge the MAC address cache for interfaces, so a ...
0
votes
0answers
121 views

Wifi not working after using ethernet cable and virtualized linux

I installed Lubuntu on VirtualBox (which is installed on a Windows 7 64-bit host) and then on VMware Player successfully to learn some bash programming. Then I connected my computer to the internet ...
0
votes
0answers
97 views

Ubuntu VMs not following the default route

I have a couple subnets in my network, all connected and routed through a Dell 6248 (layer 3 switch) Sometimes a server stops routing through the default gateway, its just plain weird. Example: ...
0
votes
0answers
167 views

No network interface for the lan9118 emulated on QEMU 1.4.0 overo machine

Im using QEMU 1.4.0 Ubuntu 13.04 distribution. Im trying to make the virtrual machine part of the host network so Im ussing this command: sudo qemu-system-arm -M overo -m 1024 -sd ./test.img -clock ...
0
votes
0answers
58 views

Ubuntu in Virtual PC virtual machine doesn't connect to network

I have installed ubuntu 12.04 in my system virtually using Virtual PC. I am not able to connect to network in the Virtual Ubuntu OS 12.04, so kindly suggest on it.
0
votes
1answer
585 views

How to setup non-local bridged network for Xen?

I've had an absolute nightmare the past 5 days trying to set up the proper bridged networking for Xen. I've tried so many guides and all have failed to provide a solution for my specific question. ...
4
votes
4answers
18k views

In VirtualBox, how do I set up host-only virtual machines that can access the Internet?

In setting up virtual machines with VirtualBox, I often want the following characteristics vm has a static ip host can access vm without port forwarding vm can access the internet I can move ...
6
votes
2answers
11k views

Host-only network with Virtual box and Windows host machine: cannot find device eth1

(ANSWER BELOW) I have problem with implementing Host-Only network in Virtualbox. my host machine is running under Windows 7 Ultimate, and guest OS is Ubuntu Server 12.04.2 64bit. I configure virtual ...
1
vote
0answers
1k views

Bridge networking is not working in virtual box 4.2.8 with ubuntu 12.04 host and ubuntu 11.10 guest

Very good article but there is a problem for me. I am using virtual box 4.2.8 with ubuntu 12.04 host and ubuntu 11.10 guest. I am unable to setup bridge networking beetween host and guest. here i am ...
1
vote
1answer
662 views

How to access the internet from a virtual machine in Gnome Boxes?

I installed Gnome Boxes, created a new virtual machine and booted an ISO. The ISO boots up fine and the network inside the virtual machine got automatically configured by the distro (with dhcpd): IP ...
0
votes
0answers
465 views

Guest VM can only be accessed from Host, not over network

I have an Ubuntu Server machine which is acting as a VM host for KVM guests made with vmbuilder. I want to expose the VM's to the network. Currently, the VM guest can get out to the network, and I ...
2
votes
1answer
322 views

How to setup IPv6 on ubuntu host with two VMs

I want to setup IPv6 network with two VMs(virtual box) on a ubuntu 12.04 host. One VM is backtrack and second is window XP. I want to know that how can i setup a fully IPv6 network so that i can ...
0
votes
1answer
412 views

How Can I add two Bridged Interfaces on seperate LANS into KVM?

I Currently Have a Running server with multiple KVMs running different Servers within each, now I would like to add another separate interface to serve another group of KVMs on the same server. There ...
0
votes
1answer
629 views

Trouble connecting to wifi in Windows 7 VM

I run Ubuntu 12.10 as host and I am trying to use VirtualBox for gaming with a Windows 7 guest. I cannot, however, connect to my wireless internet in the guest. Any suggestions?
2
votes
2answers
397 views

KVM - Guest does not recognize second NIC

I have a server running Proxmox (a virtualization platform), and created a KVM virtual machine with Ubuntu Server 12.10. After configuring the network, everything works fine, but if I add a second ...
1
vote
1answer
462 views

How to change the IP address on my Ubuntu virtual NIC

I have a physical windows system, on which I run VMware Workstation. On a VMware virtual machine I run Ubuntu 12.10 and a LAMP webserver. Problem: Now my local IP address for my virtual NIC (the one ...
1
vote
2answers
2k views

IP Alias to Virtual Machine

Thank you in advance for any help you can give. I have searched and searched and have not found an answer to my issue. I'm not sure if this should be in virtualisation or networking - since it's ...
1
vote
1answer
2k views

12.04 on VirtualBox -No internet access on Guest OS

I have Windows 7 as my Host OS which has wired Ethernet working. My guest OS on VirtualBox is Ubuntu 12.04. The problem is that I cannot browse. I have: Enabled sharing on Windows; Have used NAT, ...
1
vote
0answers
193 views

Ubuntu server on VM, outgoing network working, but incoming is not

I have recently installed Ubuntu server with LAMP, OpenSSH and mail on Oracle's VM, it's incoming networking was working, apache's default message could be seen when opening 127.0.0.1:8080. But now ...
0
votes
1answer
327 views

How to access guest VMs from outside network?

My problem is how to access guest VM from outside network. I am going to describe my problem in details. I have single machine with Ubuntu Server 12.04 LTS contains two NICs. One NIC is connected to ...
1
vote
1answer
851 views

ubuntu vm cannot find new network cards

After copying the virtual hard disk of a vm I made to a new machine, ubuntu no longer recognises the network cards and spews out errors like: failed to bring up eth0 ..... no such device I'm ...
2
votes
2answers
3k views

Bridging: Loosing WLAN network connection with 4addr on option - Why?

Question: For use with my Xen VM, I need to create a virtual network interface (vif) that is bridged to wlan0. If in /etc/network/interfaces I add auto xenbr0 iface xenbr0 inet dhcp And ...
1
vote
1answer
531 views

How do I configure networking when using XEN on 12.04 Server

I'm following this guide, https://help.ubuntu.com/community/XenProposed, and I'd like to setup a static IP address, but I don't know how. I'm using 12.04 Server. This is the step I'm having trouble ...
0
votes
1answer
1k views

Unable to set default gateway on a hosted Windows virtual server

I'm running Ubuntu server via Hyper-V and have successfully installed it but seem unable to ping the server or ping any other machines on the network from the server. After doing a bit of reading ...
0
votes
2answers
896 views

How do I get internet access in my kubuntu 12.04 virtual machine using NAT and a wireless connection?

I use virtualbox 4.1.14 directly from the developers including the extension (not the ppa) on an ubuntu 11.10 system. I try to access the internet from the kubuntu live cd that I have booted inside ...
2
votes
0answers
107 views

Regulating outgoing traffic on a virtual machine? [closed]

I am making a virtual network setup for my high school cybersecurity team to practice. I am connecting all the VMs together through a VPN and then people who are practicing will VPN in and ssh/remote ...
1
vote
0answers
633 views

General internet slow on Ubuntu 11.10 if running standalone but not inside VM [closed]

I got a new machine for work and was already using Ubuntu before that with a chain loader setup to load Windows 7 on another disk. My employer likes that cause he can just rip out the ubuntu disk and ...
2
votes
1answer
251 views

How do I simulate a network?

I want to simulate the following network with 2 laptops connected over internet. How can I do it? How can I set up the intefaces? [I'm using KVM if it matters]. Any help appreciated.
8
votes
3answers
2k views

Resources for making an Ubuntu-based router?

I need a dead simple (read dumbies) guide to setting an Ubuntu 10.10 machine up as a router. Here's the scenario: I have several Ubuntu 10.10 VM's that run on the same virtual network. I want them ...
22
votes
6answers
545 views

What would be the most practical way for a web developer to develop on Ubuntu but test on IE [duplicate]

I work as web developer and have Firefox and Chrome installed on my Ubuntu system. However, most of the nightmares for web developers are getting things to work on Internet Explorer, mostly IE7 and ...
1
vote
1answer
1k views

How to configure a second IP address and bind it to a VBoxHeadless virtual machine?

I've requested my ISP to dedicate me a second Internet IP address and have got it. Now I need to configure it (I've never had any experience with using multiple IP addresses on one network interface) ...
5
votes
2answers
4k views

How can I start DHCP3-server later, so that it waits for a bridge interface to initialise before loading?

I have Ubuntu 10.04 server currently setup with dhcp3-server as well as a bridged interface (br0) for use with virtual machines. The problem I have is that when the server reboots, dhcp3-server fails ...
2
votes
2answers
448 views

Virtual Ubuntu Network Configuration

I have Ubuntu as main OS. I have created virtual Ubuntu in Sun VirtualBox and I get this error: can not connect(ssh)/ping computers in local network. If I configure network manually I even can not ...