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In the previous video, we have done configuring
ssh on router1 and router2, so now we can

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remote router1 and router2 using ssh from
ubuntu server

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Next in this video, we are going to connecting
guest os with host os.

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What is guest os and host os? We will talk
more about this in this video.

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In the previous video, we already create topology
like this, so the ubuntu is connected to switch

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inside gns3, and also we have two router that
connected to a switch.

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And the ubuntu is also connected to the internet.
If you remember, ubuntu have 2 interface,

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the first interface is connected to internet,
and the second interface is connected to gns3.

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Ubuntu is guest os, so guest os is the virtual
machine.

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And then our laptop is host os.

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In this case, I use mac, so this mac is host
os. If you use windows on your laptop, so

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the windows is host os.

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In the previous video, we already learn how
to connecting ubuntu with router inside gns3.

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Now in this video, we are going to learn how
to connecting the ubuntu with our laptop.

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So we will able to remote the ubuntu server
from our laptop. Let’s just start.

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Shutdown the ubuntu server first, here we
can right click and then shutdown.

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Next, let’s go to setting, in the network
section, we have network adapter 1 that connected

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to internet, this is attached to nat,

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And then network adapter2, this is connected
to gns3, here we can see that the attached

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to is generice driver and the name is UDPTunnel.
This is changed automatically when we connecting

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the ubuntu with router inside gns3.

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And then to connecting ubuntu with our laptop,
we need to add one more interface, so let’s

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enable network adapter 3.

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Attached to is host only adapter, and here,
in the name, this is not selected.

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This is means that we don’t have host only
adapter yet. Let’s create it first.

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Cancel this, go to file, and then host network
manager. Here we can create.

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Here we can see that by default the ip address
is 192.168.56.1, close this.

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Now let’s check on our laptop, open the
terminal, ifconfig,

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Here we can see that now we have 1 new interface,
which is vboxnet0.

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Now let’s configure the ubuntu again, enable
network adapter 3, attached to is host only

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adapter, and here we can choose vboxnet0.

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Okay we have done here, let’s start the
ubuntu again.

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Let’s login, now let’s configure the ip
address that connected to our laptop. Let’s

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check the interface first, ip address,

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Okay here we only have 2 interface. So the
new interface is not detected yet. Shutdown

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the ubuntu first.

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Right click here and then choose configure.
In the network section, here we can see that

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the interface is still 2,

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Let’s also check on the virtualbox,

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Okay here the network adapter 3 is not enabled
yet, let’s enable this.

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And then in the gns3, we also need to change
this become 3.

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Okay we get an error here, this is means that
we can not add new interface when there is

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a cable connected to the ubuntu.

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Let’s close this, and then remove the cable
first.

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Configure again, and then change the network
to 3.

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Let’s also configure the template, so if
we import ubuntu in the other project, we

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don’t need to configure the network adapter
again.

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Right click here and then configure.

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Here the interface is still 2, let’s change
this become 3.

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Okay now let’s connecting the ubuntu to
the switch again. Remember that we need to

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connecting ubuntu with gns3 in the second
interface, first interface is connected to

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internet, and the last interface is connected
to our laptop.

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Let’s start the ubuntu,

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Wait for a minute .
Let’s login, now let’s check the interface,

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okay here now we have 1 new interface, which
is enp0s9. This interface is connected to

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host os or our laptopo.

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We will need to configure the ip address of
this interface based on the ip address in

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the virtual box. Let’s check it, here we
can see that the ip address in the virtualbox

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is 192.168.56.1, this is the ip address on
the host os or our laptop. Let’s check it,

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Ifconfig, here we can see that the ip address
of vboxnet0 is 192.168.56.1

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So in the ubuntu server, we need to configure
the ip address become 192.168.56.x, let’s

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say we are going to use 2, so the ip address
will be 192.168.56.2.

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let’s start, go to ubuntu, sudo nano /etc/netplan/00-installer-config.yml.

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type the password.

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Now let’s configure for enp0s9.

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Save the configuration, ctrl + x , y , enter.

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Let’s apply the configuration, sudo netplan
apply, let’s check again, ip address, okay

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here we can see that now the ip address of
enp0s9 is 192.168.56.2.

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Let’s try ping to host os, ping 192.168.56.1.,
okay this is success.

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So now we have done connecting guest os or
virtual machine with host os or our laptop.

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Now we can remote the guest os from host os
using ssh. Remember when we install the ubuntu,

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we also install ssh server.

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Open the terminal, ssh ubuntu and then the
ip address of ubuntu, which is 192.168.56.2.

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Okay I get an error here, this is because
I already remote 192.168.56.2 before. Just

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remove this.

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Let’s remote again,

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Okay we are success remote the ubuntu from
our laptop.

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I think enough for this video, thank you for
watching and see you on the next video.