yum install rhel-7-server-extras-rpms rhel-7-server-optional-rpms

subscription-manager repos --enable rhel-7-server-optional-rpms
yum install mod_ldap -y

yum repolist all

subscription-manager attach --auto

yum check-update
subscription-manager remove --all
subscription-manager unregister
subscription-manager register
subscription-manager refresh
subscription-manager list --available
yum clean all
rm -r /var/cache/yum


subscription-manager list --available --all
subscription-manager list --installed

sh-4.2#