HP 226824-001 - ProLiant - ML750 Manual de Introdução - Página 15

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HTTPS, single sign-on, and secure task execution

An additional role of the SMH framework is to provide a secure communications environment for the

Insight Management Agents architecture. SNMP does not provide secure, encrypted communications

between the managed server and the remote requesting process. To address this, the SMH framework

implements HTTPS, a separate, SSL-based, secure communications link and protocol between each

managed server and the SIM server. While SIM continues to use the standard SNMP service to

retrieve basic MIB information, all sensitive traffic (including threshold Sets, configuration data, and

other commands) is sent over this secure link using HTTPS.

A configurable trust relationship also provides certificate-based authentication between the managed

servers and the SIM server. This authentication eliminates the need for a user to manually log-in to

each managed server and forms the basis for the Insight Manager single sign-on functionality.

Without the SMH framework, SIM single sign-on would not be possible. The trust model also allows

SIM to perform automated tasks on managed servers without storing the credentials of the user who

sets up the task. This is known as Secure Task Execution.

The SMH framework implements the remote configuration capabilities of the Insight Management

Agents architecture using the Configure Agent Settings functionality, which is part of the Replicate

Agent Settings service. To accomplish this, the service establishes a protocol that allows HP SIM to

query the SMH framework for the configuration settings of various components of the client-side

Insight architecture. This includes the Insight agent settings, general SNMP settings, the SMH security

settings, and others. Changes to configuration settings can then be passed back and forth between

the SIM server and the SMH framework over the SSL link. When the Replicate Agent Settings service

receives the new parameters, it changes the configuration settings on the managed server.

The Replicate Agents Settings capability in HP SIM is built using this core service of the SMH

framework. In HP SIM, an administrator can use the Replicate Agents Settings functionality to

duplicate the agent settings of one reference server across an entire group of managed servers.

Without the SMH framework and the Replicate Agents Settings service installed on the managed

servers, the Replicate Agents Settings functionality in HP SIM cannot work.