Eu experimentei esse erro depois de alterar meu endereço IP para estático. Ao fazer isso, não digitei os ips na gravação, fazendo com que o servidor não acessasse a Internet.
Eu recebo erros quando uso o sudo apt-get update ou a instalação de pacotes.
Err http://ca.archive.ubuntu.com precise InRelease
Err http://security.ubuntu.com precise-security InRelease
Err http://ca.archive.ubuntu.com precise-updates InRelease
Err http://ca.archive.ubuntu.com precise-backports InRelease
Err http://security.ubuntu.com precise-security Release.gpg
Temporary failure resolving 'security.ubuntu.com'
Err http://ca.archive.ubuntu.com precise Release.gpg
Temporary failure resolving 'ca.archive.ubuntu.com'
Err http://ca.archive.ubuntu.com precise-updates Release.gpg
Temporary failure resolving 'ca.archive.ubuntu.com'
Err http://ca.archive.ubuntu.com precise-backports Release.gpg
Temporary failure resolving 'ca.archive.ubuntu.com'
Reading package lists... Done
W: Failed to fetch http://ca.archive.ubuntu.com/ubuntu/dists/precise/InRelease
W: Failed to fetch http://ca.archive.ubuntu.com/ubuntu/dists/precise-updates/InRelease
W: Failed to fetch http://ca.archive.ubuntu.com/ubuntu/dists/precise-backports/InRelease
W: Failed to fetch http://security.ubuntu.com/ubuntu/dists/precise-security/InRelease
W: Failed to fetch http://ca.archive.ubuntu.com/ubuntu/dists/precise/Release.gpg Temporary failure resolving 'ca.archive.ubuntu.com'
W: Failed to fetch http://security.ubuntu.com/ubuntu/dists/precise-security/Release.gpg Temporary failure resolving 'security.ubuntu.com'
W: Failed to fetch http://ca.archive.ubuntu.com/ubuntu/dists/precise-updates/Release.gpg Temporary failure resolving 'ca.archive.ubuntu.com'
W: Failed to fetch http://ca.archive.ubuntu.com/ubuntu/dists/precise-backports/Release.gpg Temporary failure resolving 'ca.archive.ubuntu.com'
W: Some index files failed to download. They have been ignored, or old ones used instead.
Eu experimentei esse erro depois de alterar meu endereço IP para estático. Ao fazer isso, não digitei os ips na gravação, fazendo com que o servidor não acessasse a Internet.