Dell POWEREDGE M1000E - Manual (Page 131)

NOTE: For bit mask number values, see the database property chapter of the RACADM Command Line
Reference Guide for iDRAC7 and CMC
2. Specify a DNS server using one of the following options:
– If DHCP is enabled on CMC and you want to use the DNS address obtained automatically by the DHCP server,
type the following command:
racadm config -g cfgLanNetworking -o
cfgDNSServersFromDHCP 1
– If DHCP is disabled on CMC or you want manually to input your DNS IP address, type the following commands:
racadm config -g cfgLanNetworking -o
cfgDNSServersFromDHCP 0
racadm config -g cfgLanNetworking -o
cfgDNSServer1 <primary DNS IP address>
racadm config -g cfgLanNetworking -o
cfgDNSServer2 <secondary DNS IP address>
Extended Schema Active Directory Overview
Using the extended schema solution requires the Active Directory schema extension.
Active Directory Schema Extensions
The Active Directory data is a distributed database of attributes and classes . The Active Directory schema includes the
rules that determine the type of data that can be added or included in the database. One example of a class that is
stored in the database is the user class. Some example user class attributes can include the user’s first name, last
name, phone number, and so on.
You can extend the Active Directory database by adding your own unique
attributes and classes for specific
requirements. Dell has extended the schema to include the necessary changes to support remote management
authentication and authorization using Active Directory.
Each
attribute or class that is added to an existing Active Directory Schema must be defined with a unique ID. To
maintain unique IDs across the industry, Microsoft maintains a database of Active Directory Object Identifiers (OIDs) so
that when companies add extensions to the schema, they can be guaranteed to be unique and not to conflict with each
other. To extend the schema in Microsoft's Active Directory, Dell received unique OIDs, unique name extensions, and
uniquely linked attribute IDs for the attributes and classes that are added into the directory service.
• Dell extension: dell
• Dell base OID: 1.2.840.113556.1.8000.1280
• RAC LinkID range: 12070 to 12079
Overview of Schema Extensions
Dell has extended the schema to include an Association , Device , and Privilege property. The Association property is
used to link together the users or groups with a specific set of privileges to one or more RAC devices. This model
provides an administrator maximum flexibility over the different combinations of users, RAC privileges, and RAC devices
on the network without much complexity.
When there are two CMCs on the network that you want to integrate with Active Directory for authentication and
authorization, create at least one association object and one RAC device object for each CMC. You can create multiple
association objects, and each association object can be linked to as many users, groups of users, or RAC device objects
as required. The users and RAC device objects can be members of any domain in the enterprise.
However, each association object can be linked (or, may link users, groups of users, or RAC device objects) to only one
privilege object. This example allows an administrator to control each user’s privileges on specific CMCs.
The RAC device object is the link to RAC firmware for querying Active Directory for authentication and authorization.
When a RAC is added to the network, the administrator must configure the RAC and its device object with its Active
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