ol5.6 Oracle Linux 5.6 Oracle Linux 5.6 Oracle Linux 5.6 오라클 리눅스 5.6 Oracle Linux 5.6 Oracle Linux 5.6 Oracle Linux 5.6 Oracle Linux 5.6 Oracle Linux 5.6 Oracle Linux 5.6 Oracle Linux 5.6 Oracle Linux 5.6 Oracle Linux 5.6 5.6 Oracle America Oracle America Oracle America 오라클 아메리카 Oracle America Oracle America Oracle America Oracle America Oracle America Oracle America Oracle America Oracle America linux ol 2011-01-28 2020-06-30