How to add extanded repo on CentOS
official repo
- base
- extras
- updates
epel
yum install epel-release
https://fedoraproject.org/wiki/EPEL
el
rpm --import https://www.elrepo.org/RPM-GPG-KEY-elrepo.org
rpm -Uvh http://www.elrepo.org/elrepo-release-6-6.el6.elrepo.noarch.rpm
http://elrepo.org/tiki/tiki-index.php
sclo
yum install centos-release-scl-rh centos-release-scl
https://wiki.centos.org/AdditionalResources/Repositories/SCL
