sudo vi /etc/apt/apt.conf.d/proxy.conf
#Add the following lines:
Acquire::http::Proxy "http://username:password@proxy-server-ip:8181/";
Acquire::https::Proxy "https://username:password@proxy-server-ip:8182/";
sudo apt update
sudo apt install inxi
inix -Nn
sudo apt install bcmwl-kernel-source
sudo apt install openssh-server