Due to various constraints I've found myself in the following situation:
I have access to an API which starts a service on the loopback device of a computer (127.0.0.1). This computer is actually running on a VM being hosted by the client. The client will be using the same API to connect (which, of course, will connect via the loopback device).
The API is intended to be a service which executes on the same machine as the host and the client - it's a communication layer essentially. The two software components (ie, the endpoints), are incompatible, so we have them configured this way: the client hosting the server on a VM.
The VM is Virtualbox, with a Bridged Adaptor network setup.
They're both running Windows XP.
How do I get them to communicate?
EDIT: I cannot make changes to the communication service, but I can make whatever other changes are necessary to the VM or the host.
Expanding on #EJP's suggestion to use port forwarding, the required command is covered in User Manual, ยง6.3.1 Configuring port forwarding with NAT. Suppose your service on guest "VM name" is a web server listening on port 80. You can forward host port 12345 to guest port 80 like this:
VBoxManage modifyvm "VM name" --natpf1 "service,tcp,,12345,,80"
When you browse http://127.0.0.1:12345 on your host, the guest server will respond. You can delete the setting using something like this:
VBoxManage modifyvm "VM name" --natpf1 delete "service"
You can examine the setting using something like this:
VBoxManage showvminfo "VM name"
You're going to have to change the service not to bind to 127.0.0.1 if you can. Otherwise you will have to install some kind of proxy in the VM, or organize some port forwarding if you can.
Related
I'm developing some webhook required direct access public domain to internal machine, thinking use SSH tunnel to forward data, or got alternative solution?
Hosting server & development machine are in same network
192.168.1.2/24 (Hosting server)
2nd machine is virtual mapping using forticlient firewall without static or dynamic IP in visible in hosting server, so is 1 way initial communication right now.
In this case possible to setup SSH tunnel forward all traffic from 192.168.1.2:80 to handle in development machine port 8080?
How to ssh syntax look like?
Thanks.
This could be done by setting up an SSH tunnel to the remote machine:
ssh -L localhost:80:localhost:8080 development-system
Every request to port 80 on the hosting-server is now forwarded to port 8080 on the development-system.
Please note, that the port 80 on the hosting-server could only be used, when you start the SSH command as root. Also note that the port 80 is only accessible from the hosting-server. To access the port 80 on the hosting-server from everywhere use the following:
ssh -L 80:localhost:8080 development-system
Be sure that you want that.
A good introduction to the topic could be found at
https://www.ssh.com/ssh/tunneling/example
https://unix.stackexchange.com/questions/115897/whats-ssh-port-forwarding-and-whats-the-difference-between-ssh-local-and-remot
My Chef workstation is a virtual machine. I initially setup this machine with Hosted Chef server while the machine was docked in my computer's dock and hardlined to the internet.
When I undock the workstation, the knife ssl command fails with the following error:
c2-device#c2failover-VirtualBox:~$ cd chef/
c2-device#c2failover-VirtualBox:~/chef$ knife ssl check
Connecting to host api.chef.io:443
ERROR: Network Error: getaddrinfo: Name or service not known
Check your knife configuration and network settings
c2-device#c2failover-VirtualBox:~/chef$
I have since assigned a resolvable IP address to the VM workstation as it was using DHCP prior. I'm not sure how to resolve this issue or what the issue may be when undocking my workstation. Does anyone have any possible causes or solutions to the issue I'm seeing?
my network interface is configured as follows:
auto lo
iface lo inet loopback
# The primary network interface
auto eth0
iface eth0 inet static
address XXX.XXX.X.XXX
netmask XXX.XXX.XXX.X
gateway XXX.XXX.XX.XXX
dns-nameservers X.X.X.X
I have not been able to find much in the chef documentation about this issue. Thanks for any help in advance, I'm fairly new to Chef.
This is not related to Chef or knife. You'll need to ensure the VM is able to reach the Internet in general. Overall we do not recommend using a VM as your workstation, you the actual desktop or laptop that you work on.
I want to be able to SSH into a VM Guest of Virtualbox where the guests are sharing a NAT Network.
LocalNat Portforwarding (See https://www.pythian.com/blog/test-lab-using-virtualbox-nat-networking/ Set Up Portforwarding) is inconvenient vs. having an IP address on the NAT for the host.
Port forwarding requires me to keep specifying the port, e.g. in scp -P 2222 from-file localhost: and it messes with SSH keys as localhost now has two host identities, my laptop and the VM's ssh-rsa key.
Rather than port-forward, is there not a way of just adding another IP for my Virtualbox host?
Thanks, Martin.
You can set up a host-only network in addition to the NAT network. A host-only network is a local network which can connect to both the host and to individual VMs. The host and the VMs can communicate with each other through it.
Using the virtualbox GUI, go to Virtualbox manager > File > Preferences > Network and set up a host-only network. Enable the DHCP server. You could use these settings:
host adapter address is 192.168.56.1
DHCP server address is 192.168.56.100
Both masks are 255.255.255.0
The server address range is 192.168.56.101-192.168.56.254
This gives you the addresses from ...56.2 through ...56.99 to use as static addresses. You can manually assign them to VM interfaces if you like.
After setting up this network, you should see a virtual interface on your host system with the correct IP address (the one assigned to the adapter).
Now, go to network settings for the VM. Add a new network adapter. Set "attached to" to the "host-only adapter", and the name to the host-only network that you set up earlier.
Start the VM. It should see the host-only adapter in addition to whatever adapters it was using before. If it's a modern operating system, it'll probably query the DHCP server and set up the interface on its own. Alternately, from inside the VM OS, you could manually assign static addresses to these interfaces.
You can assign a host-only adapter to a VM in addition to its existing NAT adapter. In the past I've had a windows VM and an Ubuntu Linux VM set up this way. Both VMs and the host had no trouble communicating with each other as well as the Internet.
i have an ibm server, a tp-link router with an static ip and DHCP activated, i want to configure one of the net boards in the ibm server.
I installed Ububntu server and access to the net board configuration using this command:
vi /etc/network/interfaces
I configure the server with this
address -> i put an ip that i resrve in the router
netmask
network
broadcast
gateway
I have a subdomain from no ip i have entered in the server so i can do remote connection to the server throw this subdomain and ssh. I have put the subdomain in /etc/host.conf
The thing is i have access to the subdomain in the web and out of the LAN net. But when i try to connect to the server throw ssh it's gave me connection refused.
EDIT:
Using the command arp-scan -I eth0 -l i found that the IP of the server is asigned two times it's look like it's the same ethernet board with two MAC address thar are the same except the las number.
Ok, what's work for me was to reinstall openssh on the server and in my computer. After that I have access throw ssh.
I have a WCF service running on "http://localhost:12345/ServiceName". I also have a VM running under hyper-v in Windows 8 public beta. Is there any way that I can connect to this service from the VM? I cant seem to set up a bridged network connection in the hyper-v manager. An alternative would be for the WCF service to bind to the Win8 machine name or IP, but I don't know how I would find out what that endpoint is from the VM side. The WCF service can be changed in any way needed...
Any help would be much appreciated!
Many thanks,
Jon
Not sure this will work with a Windows VM, but I managed to open host's URL from inside an Ubuntu VM:
On Host disable the Firewall or add a rule to allow connections to the respective port (12345 in your case).
On VM edit /etc/hosts, replace 127.0.0.1 localhost with IP_OF_HOST localhost.
Now http://localhost:12345/ServiceName should open from inside the VM.
you can create Virtual Switch in Hyper-V(Virtual Switch Manager) Then you can connect it to your VM(right click on VM ->setting -> create Legaci network adapter -> connect abouve virtual switch to it). after that you should install intigration to Hyper-V for your OS in VM. then you can connect to your virtual switch in your VM. after that you can access internet as well. you your host machine has it. type your host machine's IP address in web browser and you can access any service in host machine
You also need to run as admin on the host machine command shell netsh http add urlacl url=http://*:12345/ user=Everyone where 12345 is the port number of your service.