https://ius.io/GettingStarted/#manual-install

Example: IUS RHEL 6

rpm -Uvh https://rhel6.iuscommunity.org/ius-release.rpm

CentOS 6

rpm -Uvh https://centos6.iuscommunity.org/ius-release.rpm

Example: IUS RHEL 7

rpm -Uvh https://rhel7.iuscommunity.org/ius-release.rpm

CentOS

rpm -Uvh https://centos7.iuscommunity.org/ius-release.rpm

We now want to confirm the repo has been added and been enabled:

# yum repolist | grep IUS
ius                 IUS Community Packages for Enterprise Linux 6 - x86_6    297

Note: yum repolist only shows enabled repos, to view all repos: yum repolist all