apt-get update Failing

Question

I am getting the following message when trying to run sudo apt-get update on my Kali virtual machine. What could be the cause?

root@kali:~# sudo apt-get update
Get:1 http://http.kali.org/kali kali-rolling InRelease [3,415 B]
Err:1 http://http.kali.org/kali kali-rolling InRelease
  Clearsigned file isn't valid, got 'NOSPLIT' (does the network require authentication?)
Reading package lists... Done       
E: Failed to fetch http://http.kali.org/kali/dists/kali-rolling/InRelease  Clearsigned file isn't valid, got 'NOSPLIT' (does the network require authentication?)
E: The repository 'http://http.kali.org/kali kali-rolling InRelease' is no longer signed.
N: Updating from such a repository can't be done securely, and is therefore disabled by default.
N: See apt-secure(8) manpage for repository creation and user configuration details.
root@kali:~#

# cat /etc/resolv.conf
# Generated by NetworkManager
search *omitted*.com
nameserver 192.168.10.240
nameserver 192.168.32.215

Answer 1

Edit your /etc/apt/sources.list and add an s in the first http:

deb https://http.kali.org/kali kali-rolling main non-free contrib

Hope this helps

Answer 2

I solved by changing from http to https by using nano type : nano /etc/apt/sources.list then : change url fro http :// to https://

Answer 3

for me It didn't worked by adding just 's' in http, in fact, Kali doesn't use the https. However, I found out my internet provider was blocking this website 'kali.org' because I have opted the child safety 'on'. as soon as I whitelist the 'kali.org' on their website by login to my internet provided account. all went through without any error.