apt-get erro de resolução de nomes

Question

Acabei de digitar o sudo apt-get update e estou recebendo o seguinte erro:

Err http://de.archive.ubuntu.com natty InRelease

Err http://security.ubuntu.com natty-security InRelease

Err http://de.archive.ubuntu.com natty-updates InRelease

Err http://security.ubuntu.com natty-security Release.gpg
  Temporary failure resolving 'security.ubuntu.com'
Err http://de.archive.ubuntu.com natty Release.gpg
  Temporary failure resolving 'de.archive.ubuntu.com'
Err http://de.archive.ubuntu.com natty-updates Release.gpg
  Temporary failure resolving 'de.archive.ubuntu.com'
Reading package lists... Done
W: Failed to fetch http://de.archive.ubuntu.com/ubuntu/dists/natty/InRelease  

W: Failed to fetch http://de.archive.ubuntu.com/ubuntu/dists/natty-updates/InRelease  

W: Failed to fetch http://security.ubuntu.com/ubuntu/dists/natty-security/InRelease  

W: Failed to fetch http://de.archive.ubuntu.com/ubuntu/dists/natty/Release.gpg  Temporary failure resolving 'de.archive.ubuntu.com'

W: Failed to fetch http://security.ubuntu.com/ubuntu/dists/natty-security/Release.gpg  Temporary failure resolving 'security.ubuntu.com'

W: Failed to fetch http://de.archive.ubuntu.com/ubuntu/dists/natty-updates/Release.gpg  Temporary failure resolving 'de.archive.ubuntu.com'

W: Some index files failed to download. They have been ignored, or old ones used instead.

    

Answer 1

Temporary failure resolving 'de.archive.ubuntu.com'

Isso é indicativo de um problema de DNS. Certifique-se de que seus servidores DNS estejam configurados corretamente no cliente e verifique se os servidores estão realmente funcionando como deveriam.