`apt update` 每次都失败

Question

我从昨天开始就遇到这个错误，以下是输出：

Ign:1 http://archive.ubuntu.com/ubuntu jammy InRelease
Ign:2 http://archive.ubuntu.com/ubuntu jammy-updates InRelease
Ign:3 http://archive.ubuntu.com/ubuntu jammy-security InRelease
Ign:1 http://archive.ubuntu.com/ubuntu jammy InRelease
Ign:2 http://archive.ubuntu.com/ubuntu jammy-updates InRelease
Ign:3 http://archive.ubuntu.com/ubuntu jammy-security InRelease
Ign:1 http://archive.ubuntu.com/ubuntu jammy InRelease
Ign:2 http://archive.ubuntu.com/ubuntu jammy-updates InRelease
Ign:3 http://archive.ubuntu.com/ubuntu jammy-security InRelease
Err:1 http://archive.ubuntu.com/ubuntu jammy InRelease
  Temporary failure resolving 'archive.ubuntu.com'
Err:2 http://archive.ubuntu.com/ubuntu jammy-updates InRelease
  Temporary failure resolving 'archive.ubuntu.com'
Err:3 http://archive.ubuntu.com/ubuntu jammy-security InRelease
  Temporary failure resolving 'archive.ubuntu.com'
Reading package lists... Done
Building dependency tree... Done
All packages are up to date.
W: Failed to fetch http://archive.ubuntu.com/ubuntu/dists/jammy/InRelease  Temporary failure resolving 'archive.ubuntu.com'
W: Failed to fetch http://archive.ubuntu.com/ubuntu/dists/jammy-updates/InRelease  Temporary failure resolving 'archive.ubuntu.com'
W: Failed to fetch http://archive.ubuntu.com/ubuntu/dists/jammy-security/InRelease  Temporary failure resolving 'archive.ubuntu.com'
W: Some index files failed to download. They have been ignored, or old ones used instead.

Answer 1

打