After installing Kali Linux from an ISO file, you may need to manually update the kali linux repository sources.list file with the official list of repositories.
This guide will show you how to add Kali Linux repositories to sources.list.
Apt requires software repositories to download packages and install them on your computer.
So, let’s begin.

Kali Linux distribution has officially followed the Swiss hacker knife BackTrack. Kali Linux is – just like BackTrack – a Linux especially for those who are interested in penetration testing, the (un) security of systems or want to recover data that seems to have disappeared. And yet, a lot is different. Offensive Security officers have risked a fresh start, leaving behind legacies.

Kali Linux thoroughly cleans up its predecessor’s historic toolkit and presents users with a well-stocked set of specialized tools in categories appropriate to their intended use. “We reviewed every tool included in BackTrack, eliminating many programs that either did not work or whose functions overlapped with other tools “, write the responsible persons in the wiki. If you had to know what to look for at BackTrack, the new sorting would rather invite you to browse.