/etc/yum.repos.d
Example Repo File
[centos_base] name=CentOS Base baseurl=http://mirrors.rit.edu/centos/7.9.2009/os/x86_64/ enabled=1 gpgcheck=0 sslverify=False proxy=http://proxy.dsteele.com:80
/etc/apt/sources.d
CentOS Repo Mirrors