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There are a number of commercial products based on Red Hat Enterprise Linux (RHEL). Information about these products and the version of RHEL they are based on is often difficult to come by, since this fact is not widely publicised. Sometimes it is possible to run the 'uname -r' command to get the kernel release and then cross-reference it with the RHEL version history.
Autodesk's Smoke, Flame and Lustre software all run on HP z800 machines pre-configured with a custom RHEL 5 distribution. An additional software package called the 'Discreet Kernel Utility' or DKU is added for additional proprietary device drivers and resources.
Trend Micro Interscan Messaging Security Virtual Appliance 7.0 is based on CentOS 5.0 (a re-compilation of Red Hat Enterprise Linux 5.0)
VMware ESXi is VMware's enterprise-class hypervisor. ESX, the older larger-footprint version, consisted of two parts: the VMkernel, a proprietary hypervisor kernel, and the Service Console, a Linux-based management interface. The Service Console was based on following Red Hat products:
ESX Server 2.x Service Console is based on Red Hat Linux 7.2.
ESX Server 3.0 Service Console is based on Red Hat Enterprise Linux 3.0 Update 6.
ESX Server 3.5 Service Console is based on Red Hat Enterprise Linux 3.0 Update 8.
ESX Server 4.0 Service Console is "compatible with" Red Hat Enterprise Linux 5.2.
