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- [Instructor] Deploying virtual machines or VMs

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in an Azure environment is relatively straightforward

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and out of scope for this course.

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However, there are some subtle things

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you need to keep in mind to avoid potential dead ends.

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In this course, I set up remote desktops

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for both windows and Ubuntu VMs.

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The Ubuntu VMs use the server version

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of the operating system or OS

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which doesn't provide graphical user interface

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or GUI by default.

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To enable remote desktop access,

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I had to install additional software

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including the XFCE for desktop environment.

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You can find step-by-step instructions on this website.

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Activating file rules on Ubuntu VMs

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can lead to losing a remote desktop connection.

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If that happens, don't panic, you still have console access.

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Click on the serial console option.

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I also had to create a virtual sub-net called DMZ

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who's subnet ID is 10.0.1.0/24.

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In addition to the default subnet 10.0.0.0/24.

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Another thing I had to do was to enable forwarding

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on each virtual network interface card as shown here.

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Also, I added a new route table

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to explicitly direct all the packets

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going from 10.0.1.0/24

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to the default subnet 10.0.0.0/24.

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To our gateway interface, 10.0.1.4

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on the Ubuntu router host.

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You can see my route setting here.

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This that may not be necessary

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if you're using different cloud platforms,

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such as VMware or proxmox.

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Whenever you restart your Ubuntu router VM,

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the forwarding option is disabled by default.

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Therefore you need to enable forwarding

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each time by issuing the command

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echo 1 > /proc/sys/net/ipv4/ip_forward.

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If you don't want to use a cloud

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to try out the hands-on exercises,

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you can download proxmox

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which allows you to install VMs on a local machine.

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Oracle VirtualBox is another such solution.

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That's it.

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Although there may be challenges

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while setting up your own VM environment,

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it's worth the trouble.

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Trying out what I demonstrate throughout this course

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will make the concept sink in

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and allow you to develop a deeper understanding.