yum no package available

1. Create and open a new file called /etc/yum.repos.d/dag.repo
(vi /etc/yum.repos.d/dag.repo )

2. Add the following text to the file:
[dag]
name=DAG RPM Repository
baseurl=http://apt.sw.be/redhat/el$releasever/en/$basearch/dag
gpgcheck=1
enabled=1

3. Finally, save and close the file.