You want to install a package with a yum command. But you receive an error about the package not being available. You know that a reachable, yet unconfigured, repository has the package. You know the repository's name too.
You cannot use "subscription-manager register" to configure a new repository because you do not have the proper credentials or there is a firewall blocking the Red Hat derivative Linux server. What should you do to install a package from a different repository on a one-time basis?
Run a command such as this:
sudo yum install foobar --enablerepo=SPECIAL_REPO
# replace "foobar" with the package you want to install
# replace "SPECIAL_REPO" with the name of the repo that has it.