This chapter describes concerns for security administrators
of clustered systems. Clustered systems refer
to those systems using hardware and software that permit sharing of
disks, resources, and a common operating system among various computers.
Clusters of VAX processors are said to be joined in an OpenVMS cluster
environment; whereas clusters including both Alpha processors and
VAX processors are said to be joined in an OpenVMS Cluster environment.
To properly secure your cluster, you should be familiar with the information
in the HP OpenVMS Cluster Systems Manual.
The HP OpenVMS Cluster Systems Manual describes the tasks of the cluster manager. The cluster manager's
job is the same as that of any system manager, but the cluster manager
has to implement changes across many nodes. The security administrator
for a cluster generally requires the same training and skills as a
cluster manager, and at some cluster sites, the same person serves
in the role of security administrator as well as cluster manager.
At other sites, there may be one or more security administrators in
addition to a cluster management team.
When a site separates the security administrator function
from the cluster management function, coordination, cooperation, and
communication between these functions becomes vital. As in previous
chapters, this chapter uses the title of security administrator to
refer to individuals who have the responsibility for system security,
regardless of what other responsibilities they hold.