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  • yum解决 "Couldn't resolve host 'apt.sw.be'" 错误

    1.yum无法安装工具
        failure: repodata/repomd.xml from dag: [Errno 256] No more mirrors to try.
    http://apt.sw.be/redhat/el7/en/x86_64/dag/repodata/repomd.xml: [Errno 14] curl#6 - "Could not resolve host: apt.sw.be; Unknown error"
    说明yum 源太老---解决办法:
    最好的办法,换成国内的源
    -bash-4.2$ ls
    bak               CentOS-Debuginfo.repo  CentOS-Sources.repo  zabbix.repo
    CentOS-Base.repo  CentOS-fasttrack.repo  CentOS-Vault.repo
    CentOS-CR.repo    CentOS-Media.repo      dag.repo
    首先备份
    -bash-4.2$ mv * bak
    下载阿里的源
    -bash-4.2$ sudo wget -O /etc/yum.repos.d/CentOS-Base.repo http://mirrors.aliyun.com/repo/Centos-7.repo
    -bash-4.2$ ls
    bak  CentOS-Base.repo
    清除缓存 并更新
    -bash-4.2$ sudo yum makecache
    现在就可以装工具了
    -bash-4.2$ sudo yum install tree -y

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  • 原文地址:https://www.cnblogs.com/dbslinux/p/10571080.html
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