Oracle Linux Installation -A Centos alternative from Oracle
Oracle Linux is an enterprise Linux distribution from Oracle now they have made the access to software repositories free you can download and use it with support if you pay for subscription or you can use with self support without paying .
Get it from here :
https://yum.oracle.com/oracle-linux-i...
Switch from Centos to Oracle Linux script :
https://github.com/oracle/centos2ol
Related article :
https://linux.oracle.com/switch/centos/