This is my /etc/apt/sources.list contain
deb http://http.kali.org/kali kali-rolling main contrib non-free
deb-src http://http.kali.org/kali kali-rolling main contrib non-free
a command like apt-get update or installing anything like apt-get install terminator. these commands are not working.
yet I am unable to update it or download anything. I have Linux 2019.1. As it is an old version but I need it for my work. How to fix this issue?
After running command sudo apt-get update I got output
Get:1 http://kali.cs.nctu.edu.tw/kali kali-rolling InRelease [30.6 kB]
Get:2 http://kali.cs.nctu.edu.tw/kali kali-bleeding-edge InRelease [14.1 kB]
Err:1 http://kali.cs.nctu.edu.tw/kali kali-rolling InRelease
The following signatures were invalid: EXPKEYSIG ED444FF07D8D0BF6 Kali Linux Repository <[email protected]>
Get:3 http://kali.cs.nctu.edu.tw/kali kali-experimental InRelease [23.0 kB]
Err:2 http://kali.cs.nctu.edu.tw/kali kali-bleeding-edge InRelease
The following signatures were invalid: EXPKEYSIG ED444FF07D8D0BF6 Kali Linux Repository <[email protected]>
Err:3 http://kali.cs.nctu.edu.tw/kali kali-experimental InRelease
The following signatures were invalid: EXPKEYSIG ED444FF07D8D0BF6 Kali Linux Repository <[email protected]>
Reading package lists... Done
W: GPG error: http://kali.cs.nctu.edu.tw/kali kali-rolling InRelease: The following signatures were invalid: EXPKEYSIG ED444FF07D8D0BF6 Kali Linux Repository <[email protected]>
E: The repository 'http://http.kali.org/kali kali-rolling InRelease' is not 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.
W: GPG error: http://kali.cs.nctu.edu.tw/kali kali-bleeding-edge InRelease: The following signatures were invalid: EXPKEYSIG ED444FF07D8D0BF6 Kali Linux Repository <[email protected]>
E: The repository 'http://http.kali.org/kali kali-bleeding-edge InRelease' is not 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.
W: GPG error: http://kali.cs.nctu.edu.tw/kali kali-experimental InRelease: The following signatures were invalid: EXPKEYSIG ED444FF07D8D0BF6 Kali Linux Repository <[email protected]>
E: The repository 'http://http.kali.org/kali kali-experimental InRelease' is not 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.