Quick Tip: Configuring A Redundant Domain Controller When Using Microsoft Active Directory And Ilo Or Ilo 2 - Compaq BL10e - HP ProLiant - 512 MB RAM Update Manual

Technology Update Volume 8, Number 1
Quick tip: Configuring a redundant domain controller when using Microsoft
Active Directory and iLO or iLO 2
Server administrators using Microsoft Active Directory (AD) can integrate it with Integrated Lights-Out devices to maintain iLO
user accounts. Integrating with a directory services application such as Active Directory allows administrators to use the
Lightweight Directory Access Protocol (LDAP) directory to authenticate and authorize user privileges to multiple iLO devices.
The technology brief titled "Integrating HP ProLiant Lights-Out processors with Microsoft® Active Directory," available at
http://h20000.www2.hp.com/bc/docs/support/SupportManual/c00190541/c00190541.pdf, describes the integration
steps. The document includes a statement about iLO being able to use a backup domain controller if the primary domain
controller is unavailable.
In a Microsoft Active Directory configuration, there is no need to configure the actual iLO device to allow a backup domain
controller. The Microsoft DNS server will automatically update the Domain Name System (DNS) name to reflect domain
controller availability. Administrators should configure iLO to reference the DNS name of the domain, not the specific IP address
of the domain controller. If the primary DC is unavailable, the DNS lookup of the domain will not return that server's IP, so that
iLO can connect to the next available domain controller.
Alternatively, in the iLO configuration, administrators can use a comma or a semicolon between the IP addresses for iLO to try
when contacting the AD (see Figure 2-1).
Figure 2-1. Multiple directory server addresses in iLO configuration
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