I'm publishing my data through MQTT in a Windows 10 Virtual Machine via specific IP, hosted by Ubuntu 18.04 and I'm trying to save this data on my host OS. I created a bridge between the host and the guest OS so my guest can be seen by the router (My host receives Ping from my guest and the guest is at the same subnet mask as my host).
I can see the data in the MQTT-Lens in my host machine at the same IP by subscribing to the topic. I wrote a script to save the data. The script is working just fine if I manually publish some data. But it's not subscribing to the same network while I'm publishing data from my guest OS.
Does anyone have any idea? How can I make sure I'm addressing the same broker in my host and guest OS?
Related
I am working with an Ubuntu 18.04 virtual machine. I can SSH into this machine via puTTy on the same computer. However, how can I access this machine from another computer? Or do I have any option to set this machine as a cloud server so others can access and run it?
I think that would all depend on how the networking is configured on your VM.
You can configure the network as bridged (where the VM has it's own dedicated IP address on the local subnet), NAT (where the VM shares the IP with the system running Workstation, but NAT rules can be configured to handle traffic), or host-only (where only the system running Workstation is able to connect to it).
Bridged is probably the easiest to use for your situation.
More information on these networking configs: Common Networking Configurations for Workstation
I want to access the virtual machine IP in the host (by ping or curl or something), but it is not ok. How could I make it?
The host machine is a win10 PC.
A virtual machine using VMware workstation 15, Ubuntu 16.04 server. It has IP address 192.168.178.138 and 10.0.0.11. I can access the 192.168.178.138, but cannot access 10.0.0.11. (no matter ping or curl...)
All are NAT mode in VMware Workstation.
Now I have a web application running on 10.0.0.11:80. How could I access it in my host machine.
Btw I have another VM with 192.168.178.39 and 10.0.0.31, and this VM can access the 10.0.0.11:80 by curl.
I can show the topo as below.
(A little Chinese but it won't affect reading, just ignore it)
Yes, now I solve this question by myself.
It seems that you cannot use the Host-only mode (Actually I can only use this mode...).
You need to set the virtual interface in your host PC (The IP, gateway, or anything else...);
Then you need to set in the VMWare workstation, set it to use speical lan (VM net 2 for me);
Then you can access it from the host machine and other vm, maybe you need to search something like NAT translation in VMWare workstation to access your web application deployed in the VM from outer network.
That's what I do, now I can access my horizon dashboard in the browser (The Ubuntu server don't have any browser... T-T sad ...)
Settings Picture
I am building a sample vagrant box to install Jenkins and push it to atlas cloud.Please find below the steps that I followed.
Vagrant init ubuntu/trusty64
and the normal command to initialize the vagrant machine.
vagrant up
After this if i type command to ssh into the machine
vagrant ssh
It gives me error saying please increase timeout and so.
The main question is how can I ssh into the newly created vagrant machine.
To understand this, I have to go through all the basics. Please find below my findings.
Not attached
In this mode, VirtualBox reports to the guest that a network card is present, but that there is no connection -- as if no
Ethernet cable was plugged into the card. This way it is possible to "pull" the virtual Ethernet cable and disrupt the connection, which can be useful to inform a guest operating system that no network connection is available and enforce a reconfiguration.
Network Address Translation (NAT)
If all you want is to browse the Web, download files and view e-mail inside the guest, then this
default mode should be sufficient for you, and you can safely skip the rest of this section. Please note that there are certain limitations when using Windows file sharing (see Section 6.3.3, “NAT limitations” for details).
NAT Network
The NAT network is a new NAT flavour introduced in VirtualBox latest versions.
Bridged networking
This is for more advanced networking needs such as network simulations and running servers
in a guest. When enabled, VirtualBox connects to one of your installed network cards and exchanges network packets directly, circumventing your host operating system's network stack.
Internal networking
This can be used to create a different kind of software-based network which is visible to selected virtual machines, but not to applications running on the host or to the outside world.
Host-only networking
This can be used to create a network containing the host and a set of virtual machines, without the need for the host's physical network interface. Instead, a virtual network interface (similar to a loopback interface) is created on the host, providing connectivity among virtual machines and the host.
Generic networking
Rarely used modes share the same generic network interface, by allowing the user to select a driver which can be included with VirtualBox or be distributed in an extension pack.
At the moment there are potentially two available sub-modes:
UDP Tunnel
This can be used to interconnect virtual machines running on different hosts directly, easily and transparently, over existing network infrastructure.
VDE (Virtual Distributed Ethernet) networking
This option can be used to connect to a Virtual Distributed Ethernet switch on a Linux or a FreeBSD host. At the moment this needs compiling VirtualBox from sources, as the Oracle packages do not include it.
Out of these, only NAT and Host-only network is important.So, to solve this issue, I modified the predefined Vagrant file with the following code.
jenkins.vm.provider "virtualbox" do |vb|
jenkins.vm.network "private_network",ip:'192.168.56.5',:adapter => 2
jenkins.vm.hostname = 'jenkins.ci'
vb.name = "Jenkins"
end
Here, I have created a private network with static Ip and also, I specified the adapters count to use 2. The Private adapter is Host-only adapter and 1st adapter which is default one is NAT.
I am working on a project in which we logon to client's machine using Cirtix receiver. The machine which we connect to using Citrix receiver is basically a Windows 7 machine. Once we are in the client's windows box, inside that we have virtual box, in which VM has been added and which has all the needed software for us to do the development; for example JBOSS, database etc.
In the host machine (windows 7), we have putty, and using putty we sometimes login to the VM (i.e. terminal). The confusion which I have is as below:
We login to the VM terminal using IP address: 127.0.0.1. This is where my confusion is. 127.0.0.1 normally is the IP address with which we can refer to the current machine; so how using this IP address we are able to connect to the VM which is added to the virtual box? Doesn't the VM which is in virtualbox has its own IP address with which we can connect to? Or is there some concept which I am not aware of.
Can anyone help me in understanding this? I am not well versed with virtualization, so for the gurus this might be a naive question.
Every VM will have their uuids so to access the VM inside virtualBox or any hypervisor for that matter. so you can use that particular VM uuid and u should be able to console to that VM.
in virtual box try below
You can use: VBoxManage list vms to list all currently registered VMs with their settings, names and UUIDs.
Once you know the UUID you can also start a vm by:
VBoxManage startvm which is essentially same as: VBoxManage startvm "Name-of-vm"
Also Vm has two interfaces one loopback which will have an address of 127.0.0.1 and the rest of the interfaces so to access the VM with particular ip you need to assign an IP to that VM interface and than try with that IP.Also you might have that port 22 open for that loopback ip so may be that is the reason you are able to connect on loopback
I hope this answers your question
Networking is not a strong skill set of mine and I'm new to VirtualBox..so here we go -
I've got a Windows (XP) VM running on VirtualBox. I am able to use remote desktop to connect to the VM with no problems.
The Problem: I need to connect to another network via VPN on the virtual machine. However, once connected, all local network resources become unavailable. As a result, my remote desktop session is disconnected.
Question: Is there another way to remotely access the VM? Is there some way that VirtualBox can route me to the VM without using the Windows RDC functionality so that I can have an active VPN connection but still control the VM remotely.
Should have done some more research. This feature is already built into VirtualBox. You can log into the VM through the host machine.
All you have to do is turn on remote display in the settings for the VM and choose the port that you want to use (make sure to make appropriate firewall changes). Then you remote to that port on the host machine.
Ex: Host machine has an IP of 192.168.1.200 and you set up port 3395 for the remote display - you would open Remote Desktop Connection and use 192.168.1.200:3395 and it would open the VM.
More detail from the VirtualBox site.
http://www.virtualbox.org/manual/ch07.html