OEL5 install public YUM server

Steps to install public YUM server in your Oracle installation.
either if they are Enterprise Linux, RedHat or just use RPMs.

Example for Enterprise Linux 5:

# cd /etc/yum.repos.d
# wget http://public-yum.oracle.com/public-yum-el5.repo

Open the yum configuration file in a text editor:
vi public-yum-el5.repo

Change enabled=0 to enabled=1 from the repository you need.

Go to http://public-yum.oracle.com/ for complete instructions on other Linux versions.

 examples
yum list
yum install firefox