How to put a network driver on Ubuntu?

Question

ubuntu

Installed Ubuntu 20
It seemed to me that she did not ask where and how to install it
. After installation, she did not find the network
. And when I try to install the drivers from the disk, it gives an error when starting the exe file
. How to deal with this situation?

Old asus motherboard 2014

Answer 1

90% of the commands that are written there, gives me that they do not exist

Because they do not write themselves, but copy from each other what someone wrote 15 years ago. And it really worked 15 years ago, and even 7 years ago it worked.
First,
https://habr.com/ru/post/320278/
https://setiwik.ru/sravnenie-iproute2-vs-net-tools/
https://server-gu.ru/net-tools- to-iproute2/
Second,
https://www.google.com/search?q=netplan

Answer 2

Dive into the terminal and type ip a or ip address as you like
. It will at least show you if you have interfaces