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在 CentOS 7 中，我如何通过“带有用户名和密码的代理”连接终端并使用以下命令：

yum update

现在，当我使用此命令时，出现此错误：

Loaded plugins: fastestmirror, langpacks
Could not retrieve mirrorlist http://mirrorlist.centos.org/?release=7&arch=x86_64&repo=os error was
14: curl#7 - "Failed to connect to 2a02:2498:1:3d:5054:ff:fed3:e91a: Network is unreachable"


 One of the configured repositories failed (Unknown),
 and yum doesn't have enough cached data to continue. At this point the only
 safe thing yum can do is fail. There are a few ways to work "fix" this:

    1. Contact the upstream for the repository and get them to fix the problem.

    2. Reconfigure the baseurl/etc. for the repository, to point to a working
        upstream. This is most often useful if you are using a newer
        distribution release than is supported by the repository (and the
        packages for the previous distribution release still work).

    3. Disable the repository, so yum won't use it by default. Yum will then
        just ignore the repository until you permanently enable it again or use
        --enablerepo for temporary usage:

            yum-config-manager --disable <repoid>

    4. Configure the failing repository to be skipped, if it is unavailable.
        Note that yum will try to contact the repo. when it runs most commands,
        so will have to try and fail each time (and thus. yum will be be much
        slower). If it is a very temporary problem though, this is often a nice
        compromise:

            yum-config-manager --save --setopt=<repoid>.skip_if_unavailable=true

Cannot find a valid baseurl for repo: base/7/x86_64
4

2 回答 2

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yum 使用 HTTP，因此您需要为您的环境设置一个 http 代理。

看看这个：https ://www.centos.org/docs/5/html/yum/sn-yum-proxy-server.html

于 2014-10-22T06:10:44.313 回答
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尝试运行该命令，您将连接到上传或任何您想要的内容只需添加：dhclient然后按输入此命令：yum update

于 2015-10-13T17:46:05.933 回答