We have to edit the sources.list file in /etc / apt / sources.list. root@kali:~# vi /etc/apt/sources.list (OR) root@kali:~# leafpad /etc/apt/sources.list (OR) root@kali:~# cat /etc/apt/sources.list
First add official Repo to Kali:
After launch of Kali 2016.1, kali-rolling is our current active repository. The following entries in their sources are expected for Kali Rolling users:
