yum proxy是什么原理啊?最重要的是国内有哪些好用代理呢?

正在装k8s,提示:

 https://packages.cloud.google.com/yum/repos/kubernetes-el7-x86_64/repodata/repomd.xml: [Errno 14] curl#22 - "The requested URL returned error: 403"

需要在/etc/yum.conf设置代理,求代理地址,网上没搜到

https://www.cnblogs.com/jdxn/p/6755136.html