root@kkk:~# rm -rf /etc/apt/sources.list
root@kkk:~# nano /etc/apt/sources.list
root@kkk:~# apt-get clean
root@kkk:~# apt-get update
Err http://security.kali.org sana/updates Release.gpg
Could not resolve 'kali.koyanet.lv'
Hit http://http.kali.org sana Release.gpg
Hit http://http.kali.org sana Release
Hit http://http.kali.org sana/main amd64 Packages
Hit http://http.kali.org sana/non-free amd64 Packages
Hit http://http.kali.org sana/contrib amd64 Packages
Ign http://http.kali.org sana/contrib Translation-tr_TR
Ign http://http.kali.org sana/contrib Translation-tr
Ign http://http.kali.org sana/contrib Translation-en
Ign http://http.kali.org sana/main Translation-tr_TR
Ign http://http.kali.org sana/main Translation-tr
Ign http://http.kali.org sana/main Translation-en
Ign http://http.kali.org sana/non-free Translation-tr_TR
Ign http://http.kali.org sana/non-free Translation-tr
Ign http://http.kali.org sana/non-free Translation-en
Hit http://http.kali.org sana/main i386 Packages
Hit http://http.kali.org sana/non-free i386 Packages
Hit http://http.kali.org sana/contrib i386 Packages
Reading package lists... Done
W: Failed to fetch http://security.kali.org/kali-security/dists/sana/updates/Release.gpg Could not resolve 'kali.koyanet.lv'
W: Some index files failed to download. They have been ignored, or old ones used instead.
root@kkk:~#