linux安装yum源时，备份/etc/yum.repos.d/CentOS-Base.repo，却找不到这个文件

Question

备份时找不到，或者说是就没有这个，直接下载一个网易的yum源，有没有影响啊？

阿神 · Answer

No impact, it is recommended to use epel and Centos sources. It is also recommended to use the Tsinghua University mirror:

epel: https://mirrors.tuna.tsinghua...
centos: https://mirrors.tuna.tsinghua...