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Install virtualbox 7 from virtualbox.org
Create virtual machine from:

debian-115-sudo-unattended-M9o.iso

This ISO was created during our first (Tatari 64) session and is attached to Teams assignment ("Sissejuhatus, OS (Debian) unattended install")

NOTE! THE TRICKY PART WAS:
To achieve unattended install we need to
[v] Skip Unattended Installation
Hardware:
Virtual Hard Disk:
Summary:
If you are behind WiFi in your Host machine:

After the installation process is successfully finished, it’s time to configure our second network adapter. We have to login directly into our Virtual Machine (no Putty, Kitty, Powershell, etc.) as
```
User: it
Password: Passw0rd
```
NB! Typing in your password is not echoed.

This is how your NIC configuration file should look like (use
```
sudo nano /etc/network/interfaces
```
to edit and save your file):
```
# This file describes the network interfaces available
# on your system and how to activate them. For more 
# information, see interfaces\(5\).

source /etc/network/interfaces.d/*

# The loopback network interface
auto lo
iface lo inet loopback

# The primary network interface
allow-hotplug enp0s3
iface enp0s3 inet dhcp

# The secondary network interface
allow-hotplug enp0s8
iface enp0s8 inet static
address 192.168.100.10
netmask 255.255.255.0
```
Now you should reboot your virtual machine with
```
sudo reboot
```
Next, connect to just restarted virtual machine with Putty, Kitty, Powershell on:
```
ip 192.168.100.10 port 22
```
NOTE:

Segment 192.168.56.x is used by Microsoft Windows, SO PLEASE DO NOT USE IT

```

Now when our connection is established, we are happy with this:

login as: it

it@192.168.100.10's password:

Linux bull-unattended 5.10.0-18-amd64 #1 SMP Debian 
5.10.140-1 (2022-09-02) x86_64

The programs included with the Debian GNU/Linux system 
are free software; the exact distribution terms for each
program are described in the individual files in 
/usr/share/doc/*/copyright.

Debian GNU/Linux comes with ABSOLUTELY NO WARRANTY, 
to the extent permitted by applicable law.

Last login: Sat Oct 15 13:30:25 2022

it@bull-unattended:~$ ip a

1: lo: <LOOPBACK,UP,LOWER\_UP> mtu 65536 qdisc 
     noqueue state UNKNOWN group default qlen 1000
   link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
   inet 127.0.0.1/8 scope host lo
   valid_lft forever preferred_lft forever
   inet6 ::1/128 scope host
   valid_lft forever preferred_lft forever

2: enp0s3: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 
   qdisc pfifo_fast state UP group default qlen 1000
   link/ether 08:00:27:3e:7e:1e brd ff:ff:ff:ff:ff:ff
   inet 10.0.2.15/24 brd 10.0.2.255 scope 
     global dynamic enp0s3
   valid_lft 86214sec preferred_lft 86214sec
   inet6 fe80::a00:27ff:fe3e:7e1e/64 scope link
   valid_lft forever preferred_lft forever

3: enp0s8: <BROADCAST,MULTICAST,UP,LOWER\_UP> mtu 1500 
   qdisc pfifo_fast state UP group default qlen 1000
   link/ether 08:00:27:3b:ea:d3 brd ff:ff:ff:ff:ff:ff
   inet 192.168.100.10/24 brd 192.168.100.255 scope 
     global enp0s8
   valid_lft forever preferred_lft forever
   inet6 fe80::a00:27ff:fe3b:ead3/64 scope link
   valid_lft forever preferred_lft forever

it@bull-unattended:~$ ping -c 1 google.com

PING google.com (216.58.210.142) 56(84) bytes of data.

64 bytes from mad06s09-in-f142.1e100.net 
  (216.58.210.142): icmp_seq=1 ttl=57 time=9.32 ms

--- google.com ping statistics ---

1 packets transmitted, 1 received, 0% packet loss, time 0ms
rtt min/avg/max/mdev = 9.323/9.323/9.323/0.000 ms

it@bull-unattended:~$

Well, The tldr Lab starts here, but this is another tale..