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| Oracle Integrated Lights Out Manager (ILOM) 3.1
Oracle servers provide a standard, low-speed connection between the host and Oracle ILOM called a Keyboard Controller Style (KCS) interface. This interface is fully compliant with the Intelligent Platform Management Interface (IPMI) Version 2.0 specification and likewise cannot be disabled.
Any operating system user who has kernel or driver access to the physical KCS device is able to modify Oracle ILOM settings without authentication. Typically, only root or Administrator users can access this device. However, it is possible to configure most operating systems to provide wider access to this device.
An operating system user with KCS access can do the following:
Add or create Oracle ILOM users.
Change user passwords.
Access the Oracle ILOM CLI as an ILOM Administrator.
Access logs and hardware information.
Typically, the device is called /dev/kcs0 or /dev/bmc on Linux or Oracle Solaris and ipmidrv.sys or imbdrv.sys on Microsoft Windows. Access to this device, also referred to as a Baseboard Management Controller (BMC) driver or an IPMI driver, must be carefully controlled using the appropriate access control mechanisms that are part of the host operating system.
For information about how to control access to hardware devices, see the documentation for the host operating system.