Prominent features of Oracle Linux 6.9 include support for TLS (Transport Layer Security) 1.2 on all system components, along with vsftpd support for TLS 1.2 and auditd support for incremental_async, implementation of the cpuid utility supporting AMD, Intel, and VIA CPUs, improved SSSD (System Security Services Daemon) support for Active Directory (AD), and better support when running as a Hyper-V guest. Under the hood, the OS is powered by Unbreakable Enterprise Kernel (UEK) Release 4 (4.1.12-61.1.28.el6uek) for 64-bit (x86_64) platforms, Unbreakable Enterprise Kernel (UEK) Release 2 (2.6.39-400.294.3.el6uek) for 32-bit (i386) systems, and a Red Hat Enterprise Linux-compatible kernel (2.6.32-696.el6) for both 32- and 64-bit machines.