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Everybody.

I recently installed Ubuntu 16.04 on the computer I use in the company I'm working at.

The net is going without any problem, but when I try the famous:

sudo apt update command

I see these errors:

 Err:5 http://archive.ubuntu.com/ubuntu xenial-updates InRelease                                                                               
  Le fichier signé en clair n'est pas valable, ce qui a été reçu est « NOSPLIT ». Peut-être le réseau nécessite-t-il une authentification.

Please, can somebody tell me how I can use apt over this network ?

1 Answers1

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I had a look on the net and I found these secured mirrors: deb https://mirrors.kernel.org/ubuntu xenial main restricted universe multiverse deb-src https://mirrors.kernel.org/ubuntu xenial main restricted universe multiverse