RHCSA studying. classroom.example.com 10.0.2.10 has a web server and /var/www/html/repo is where we want the yum repository to be.
A little selinux problem with that in enforcing mode.
yum -y install nmap ##our test dummy.
The answer:
chcon -R -t httpd_sys_content_t “/var/www/html/repo/”
restorecon -R /var/www/html/repo
Like magic yum then works.