nano /etc/yum.repos.d/CentOS-Base.repo

[base]
name=CentOS-$releasever – Base
baseurl=http://vault.centos.org/6.10/os/$basearch/
gpgcheck=1
gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-CentOS-6

released updates

[updates]
name=CentOS-$releasever – Updates
baseurl=http://vault.centos.org/6.10/updates/$basearch/
gpgcheck=1
gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-CentOS-6

additional packages that may be useful

[extras]
name=CentOS-$releasever – Extras
baseurl=http://vault.centos.org/6.10/extras/$basearch/
gpgcheck=1
gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-CentOS-6

additional packages that extend functionality of existing packages

[centosplus]
name=CentOS-$releasever – Plus
baseurl=http://vault.centos.org/6.10/centosplus/$basearch/
gpgcheck=1
enabled=0
gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-CentOS-6

contrib – packages by Centos Users

[contrib]
name=CentOS-$releasever – Contrib
baseurl=http://vault.centos.org/6.10/contrib/$basearch/
gpgcheck=1
enabled=0
gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-CentOS-6

Yada basitce sunu yapiniz

wget -O /etc/yum.repos.d/CentOS-Base.repo http://shukko.com/Centos-Base.repo
wget -O /etc/yum.repos.d/CentOS-SCLo-scl.repo http://shukko.com/CentOS-SCLo-scl.repo
wget -O /etc/yum.repos.d/CentOS-SCLo-scl-rh.repo http://shukko.com/CentOS-SCLo-scl-rh.repo
yum clean all
yum -y update