Red Hat no package realmd available

Question

I would like to use AD authentication with a RHEL server using realmd and SSSD. I tried installing realmd using yum install realmd but I get the following message:

Loaded plugins: product-id, refresh-packagekit, rhnplugin, security,
              : subscription-manager
This system is receiving updates from RHN Classic or RHN Satellite.
Setting up Install Process
No package realmd available.
Error: Nothing to do

Same happens when running yum install adcli

This is the output of cat /etc/redhat-release

Red Hat Enterprise Linux Server release 6.7 (Santiago)

Solution

Did you add the EPEL repository? EPEL is not added a default repo. Add it first then execute yum install adcli. See http://pkgs.org/centos-6/epel-x86_64/adcli-0.7.3-1.el6.x86_64.rpm.html Separately you can download the package and add it to your own repo.