HP Integrated Lights-Out 2 User Guide

Creating multiple restrictions and roles
The most useful application of multiple roles includes restricting one or more roles so that rights do
not apply in all situations. Other roles provide different rights under different constraints. Using
multiple restrictions and roles enables the administrator to create arbitrary, complex rights
relationships with a minimum number of roles.
For example, an organization might have a security policy in which LOM administrators are allowed
to use the LOM device from within the corporate network but are only able to reset the server
outside of regular business hours.
Directory administrators might be tempted to create two roles to address this situation, but extra
caution is required. Creating a role that provides the required server reset rights and restricting it
to an after-hours application might allow administrators outside the corporate network to reset the
server, which is contrary to most security policies.
In the example, security policy dictates general use is restricted to clients within the corporate
subnet, and server reset capability is additionally restricted to after hours.
Alternatively, the directory administrator could create a role that grants the login right and restrict
it to the corporate network, then create another role that grants only the server reset right and
restrict it to after-hours operation. This configuration is easier to manage but more dangerous
because on-going administration might create another role that grants users from addresses outside
the corporate network the login right, which could unintentionally grant the LOM administrators in
the server Reset role the ability to reset the server from anywhere, provided they satisfy the time
constraints of that role.
The previous configuration meets corporate security policy. However, adding another role that
grants the login right can inadvertently grant server reset privileges from outside the corporate
subnet after hours. A more manageable solution would be to restrict the Reset role, as well as the
General Use role.
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