1 VirtualBox

Install Oracle VirtualBox

https://tecadmin.net/install-oracle-virtualbox-on-ubuntu/

1.1 Networking in VM

Networking mode Overview:

images_networking.png

Bridged mode
- The guest machine becomes a peer of all the other computers on that network virtualy. All network traffics will through the host network interface card (NIC). See the above picture, dot lines/links virtually connect guest machines’s NICs to the network, but solid lines conect all NICs representing real traffics.
Internal mode
- Similar to the bridged mode, but network traffics between guest machines can be hiden from the host machine NIC for a security reason (See above picture, the direct link between two guest machines).
NAT (Network Address Translation) mode
- The guest machine is sharing the Mac’s IP address of your Host machine.
Host-only mode
- The guest machine’s network world is wholly within your Host machine.

1.1.1 Bridged mode

Disadvantages:
1. Having troubles with accessing the network at all if your VM is not added to the domain.
2. A generated mac address of the virtual machine is recognized by the company firewall

1.1.2 NAT mode

1.1.2.1 VMware: Port forward with NAT setup

http://geekswithblogs.net/NewThingsILearned/archive/2009/11/13/connect-to-vmware-virtual-machines-using-remote-desktop.aspx

As the Hadoop uses SSH for node communications.

Under the “Edit” Menu > “Virtual Network Editor”
Click the “Add” for Port Forwarding
Then add a port forwarding configuration. Forward incoming port 10000 to 22 for SSH

Now, we can SSH the guest machine with the host IP address with port 10000. e.g. ssh -p 10000 guestVMmachine

1.1.2.2 VirtualBox: Port forward with NAT setup

Remote desktop connection on a Windows guest machine

The remote desktop must be enabled first in the guest machine (default is disabled in windows server 2008 r2).

Add a port forwarding rule in VBox network setting. The 3389 is default port of remote desktop
```
Rule1 TCP hostIp 3389 guestIp 3389
```

The Windows server uses dynamic port for some services:

# show the dynamic ports
netsh int ipv4 show dynamicport tcp
netsh int ipv6 show dynamicport udp
# set the dynamic ports
netsh int ipv4 set dynamicport tcp start=10000 num=1000
netsh int ipv4 set dynamicport udp start=10000 num=1000

In this case, multiple port forwarding can be simply done in VBox command line. (http://tombuntu.com/index.php/2008/12/17/configure-port-forwarding-to-a-virtualbox-guest-os/)

$ VBoxManage setextradata "GuestVMName" "VBoxInternal/Devices/e1000/0/LUN#0/AttachedDriver/Config/DescriptiveName/Protocol" TCP
$ VBoxManage setextradata "GuestVMName" "VBoxInternal/Devices/e1000/0/LUN#0/AttachedDriver/Config/DescriptiveName/GuestPort" 100
$ VBoxManage setextradata "GuestVMName" "VBoxInternal/Devices/e1000/0/LUN#0/AttachedDriver/Config/DescriptiveName/HostPort" 100
$ VBoxManage setextradata "GuestVMName" "VBoxInternal/Devices/e1000/0/LUN#0/AttachedDriver/Config/DescriptiveName/PortCount" 40

The adapters are referred to by the following keys:

First PCNet: pcnet/0
Second PCNet: pcnet/1
First Intel PRO/1000: e1000/0
Second Intel PRO/1000: e1000/1
Third Intel PRO/1000: e1000/2

Updating will be refected on the VM XML. <ExtraDataItem name="VBoxInternal/D ... will be added.

1.1.3 Host-only mode

1.1.3.1 VirtualBox: Add hotst-only network

Go to File > Preferences > Network > Add host-only network. The DHCP can also be configured in here.

Reference site: http://communities.vmware.com/docs/DOC-2527

http://www.virtualbox.org/manual/ch06.html

1.2 Installation and start

start vm in backgroup without GUI.

VBoxManage startvm $VM --type headless
# Windows
"C:/Program Files/Oracle VM VirtualBox/VBoxManage.exe" startvm ubuntu --type headless

To shut it down, request the shut down from the guest.

Install Oracle VirtualBox

https://tecadmin.net/install-oracle-virtualbox-on-ubuntu/

2 Hyper-V

2.1 Installation

Installing Hyper-V on windows 10:

https://docs.microsoft.com/en-us/virtualization/hyper-v-on-windows/quick-start/enable-hyper-v

Nested Virtualization:

https://docs.microsoft.com/en-us/virtualization/hyper-v-on-windows/user-guide/nested-virtualization

create a Linux virtual machine on Windows 10 using Hyper-V:

https://www.windowscentral.com/how-run-linux-distros-windows-10-using-hyper-v

2.2 hyper-v auto start on/off

# turning hyper-v off and a reboot. 
bcdedit /set hypervisorlaunchtype off

# To turn it back on and a reboot. 
bcdedit /set hypervisorlaunchtype on (or auto start)

need ot turn off hyper-v to use virtualBox

Virtual Machine