我刚刚输入了sudo apt-get update并收到以下错误：
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.
答案1
暂时无法解析“de.archive.ubuntu.com”
这表明存在 DNS 问题。请确保客户端上的 DNS 服务器设置正确，并验证服务器是否正常运行。