Why you might need this?
It make easier for you to transfer file in or out from your other OS.
What you need?
1. VM Virtual box : https://www.comparitech.com/net-admin...
2. OS (in this case ubuntu_server) : https://www.osboxes.org/ubuntu-server/
3. IP address in the ubuntu server
4. GUI tool : https://www.comparitech.com/net-admin...
VM Setting :
1. Change the network attach to : Bridged Adapter
2. Make sure the name connect to correct wireless device. Normally it stated word wireless.
Code :
1. Update the software inside ubuntu : sudo apt update
2. FTP software in ubuntu : sudo apt install proftpd-basic
3. Check availability of FTP software in ubuntu : ftp localhost
4. List the command that you can use inside FTP software : help
5. Exit of FTP software in ubuntu : bye
6. To get the IP address inside the ubuntu OS : ip a
7. List the file that available in ubuntu : ls
More info can ask here ( / discord )