GNU/Linux Ubuntu 18.04 ALFA Network AWUS036AC Wifi Adapter Driver Setup – Step-by-step Guide
Hi! The linked Tutorial shows you Step-by-Step How to Install Alfa Network AWUS036AC Wireless AC1200 USB Dongle Driver for Ubuntu 18.04 Bionic LTS GNU/Linux.
And the Ubuntu Bionic ALFA Network AWUS036AC Setup is based on the Realtek rtl8812AU Chipset Driver Installation.
So the linked guide explain How to Download and Install the rtl8812AU Linux Driver.
In case to check your Adapter Chipset see: How to Check Wireless Device ID on GNU/Linux.
GNU/Linux Ubuntu 18.04 Installing Alfa Network AWUS036AC Wireless Driver