1. Connect to VPN
sudo openvpn user.ovpn
  1. Show our IP address
ifconfig/ip a
  1. Show networks accessible via the VPN
netstat -rn
  1. SSH to a remote server
ssh user@ipaddr
  1. FTP to a remote server
ftp ipaddr

Download file from internet using curl

curl -o filename https://example.com/your/awesome/file.sh
 
"for example, download LinEnum and save locally as LinEnum.sh file"
curl -o LinEnum.sh https://raw.githubusercontent.com/rebootuser/LinEnum/master/LinEnum.sh