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Ubuntu 18.04 从未能够 apt-get 更新；403 禁止...存储库未签名

tag-icon • tag-icon apt updates 18.04
Ubuntu 18.04 从未能够 apt-get 更新；403 禁止...存储库未签名

首先，我不是程序员，所以请写一些外行人能理解的回复。我花了好几天时间试图解决这个问题，但仍然陷入困境，所以我终于寻求帮助。

我在工作时在这台台式机上安装了 Ubuntu 18.04，除了无法更新外，其他一切都正常。我打开终端并输入sudo apt-get update，这是我收到的响应：

Err:1 http://archive.ubuntu.com/ubuntu bionic InRelease
  403  Forbidden [IP: 91.189.88.162 80]
Err:2 http://archive.ubuntu.com/ubuntu bionic-updates InRelease
  403  Forbidden [IP: 91.189.88.162 80]
Err:3 http://archive.ubuntu.com/ubuntu bionic-backports InRelease
  403  Forbidden [IP: 91.189.88.162 80]
Err:4 http://archive.ubuntu.com/ubuntu bionic-security InRelease
  403  Forbidden [IP: 91.189.88.162 80]
Reading package lists... Done
N: See apt-secure(8) manpage for repository creation and user configuration details.
N: Updating from such a repository can't be done securely, and is therefore disabled by default.
E: The repository 'http://archive.ubuntu.com/ubuntu bionic InRelease' is no longer signed.
E: Failed to fetch http://archive.ubuntu.com/ubuntu/dists/bionic/InRelease  403  Forbidden [IP: 91.189.88.162 80]
N: See apt-secure(8) manpage for repository creation and user configuration details.
N: Updating from such a repository can't be done securely, and is therefore disabled by default.
E: The repository 'http://archive.ubuntu.com/ubuntu bionic-updates InRelease' is no longer signed.
E: Failed to fetch http://archive.ubuntu.com/ubuntu/dists/bionic-updates/InRelease  403  Forbidden [IP: 91.189.88.162 80]
E: Failed to fetch http://archive.ubuntu.com/ubuntu/dists/bionic-backports/InRelease  403  Forbidden [IP: 91.189.88.162 80]
E: The repository 'http://archive.ubuntu.com/ubuntu bionic-backports InRelease' is not signed.
N: Updating from such a repository can't be done securely, and is therefore disabled by default.
N: See apt-secure(8) manpage for repository creation and user configuration details.
E: Failed to fetch http://archive.ubuntu.com/ubuntu/dists/bionic-security/InRelease  403  Forbidden [IP: 91.189.88.162 80]
E: The repository 'http://archive.ubuntu.com/ubuntu bionic-security InRelease' is not signed.
N: Updating from such a repository can't be done securely, and is therefore disabled by default.
N: See apt-secure(8) manpage for repository creation and user configuration details.

我可以打开http://archive.ubuntu.com/ubuntu在我的浏览器中没有任何问题。我可以在浏览器中访问地址 91.189.88.162，它会将我带到一个名为“Apache2 Ubuntu 默认页面”的页面。我尝试从不同的服务器更新，但每次都会遇到同样的问题。当 Ubuntu 尝试通过软件和更新应用程序进行自我更新时，也会失败。办公室里有一个防火墙“FortiNet，由 FortiGuard 提供支持”，它可以阻止可能分散小工注意力的网站。我向这里的 IT 人员寻求帮助，但我们说的语言真的不一样（我在印度）。

请让我知道我还能提供哪些信息来帮助您理解该问题。

-D

答案1

  1. 启动“软件和更新”。
  2. 选择“Ubuntu 软件”选项卡。
  3. 转到“从此处下载”。
  4. 使用下拉菜单选择“主服务器”。
  5. 出现提示时输入您的密码。
  6. 点击“关闭”。
  7. 点击“重新加载”。

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