I use elasticluster to setup a cluster of GCE virtual machines. My question is related to hardware: When I order a cluster of virtual machines, I would like to know if virtual machines of GCE are connected via cable or wireless?
Virtual machines are connected with a virtual layer 3 network. This is implemented as a software defined network on top of a (cabled) datacenter switching fabric. You can only use IPv4 unicast because of this.
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I have a cluster of virtual machines, each virtual machine has two NICs, one of which is used to communicate between virtual machines and the other is used to communicate with the Internet. An accident occurred when I wanted to connect to the master node with the agent node: when connecting to the master with the agent, the log shows that two IPs were requested, but my configuration only uses one IP, because the other IP is not available between VMs, does anyone know how to remove one of the IPs
In the environment shown in the picture, I just want to connect 192.168.117.11:6443 instead of connecting two
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Is there any way to setup a 'SPAN' or 'Mirror' port using VirtualBox so as to copy/mirror all network traffic from a particular virtual network to a promiscuous-mode adapter on a Virtual machine?
The use case is as follows - I need to teach a class on security and was figuring the easiest way for students to practise. The monitoring machine will likely have Zeek(Bro) installed and will be used to analyse packet metadata.
I have two networks listed in the "Remote network IP ranges" and the VPN is flapping between them. Only one of the remote networks is ever reachable at a time. How can I get it to keep both networks available all the time?
As Google Cloud VPN doesn't support multiple SAs, you need to establish one SA with a traffic Selector that has all the subnets which most of the routers should have it, If your hardware doesn't support it then you need to create one tunnel for every subnet.
I have installed the Cloudera Quickstart VM on my windows 8 host machine. I would like to know if it is possible to use sqoop in the VM to import data from a mysql database running in the host machine. The VM runs centOS. If so, what would be the configuration changes that i'd have to make.
Thanks
It depends on how you have your VM setup. If your VM is just using an internal network for your network interface devices, then no.
If your network interface devices are setup to use NAT or bridged, then yes. Bridged network interfaces are the easiest to work with, as it involves no routing. If your network is set to bridged mode, then your VM will be getting a DCHP address from the same location as your Host. Connecting to the mysql database is just the usual <hostip>:3306.
If the network device is set to NAT, then you've got to figure out how to route between the two networks. It's probably just a lot easier to set your VM to bridged mode than cover how to route your NAT'd interface.
Just check if you are able to ping your local machine from VM. Try ping in vm. If it works then sqoop should be able to connect to your local mysql. I am using same configuration as you are using and it works fine for me.
I am running VirtualBox on MacOS, I have a windows xp vm. I also have mysql database running inside the vm. The vm is configured to use Bridged Network Adapter.
When I am connected to a wi-fi network (at home), I am able to connect to the data running on the vm from my mac (host), by using the IP address of the vm in the connection string.
How do I do this when I am not connected to the network (when I am travelling on a train for example)?
What setting do I need to change on the VM so that my host can connect to the mysql database running on the xp vm?
There is no need for the VM to access the outside network etc... It is enough for the host to be able to access the database on the vm.
This can be solved by using port forwarding in VirtualBox with NAT as the networking mode.