Broadcast Tools SS 4.1 III Bedienungsanleitung PDF herunterladen (Seite 16)

The operation of each of these modules is explained in detail in the chapters that follow.

However, we first need to cover some basic concepts common to all Rivendell modules.

Section 1.1 The Rivendell Security Paradigm

All Rivendell modules make use of the following four classes of system resources:

● Hosts

● Users

● Groups

● Services

We'll cover each of these concepts in turn.

1.1.0 Hosts

Every physical computer within a given network that is running Rivendell software is

referred to as a host. Any host in a Rivendell network can be individually configured and

controlled from any other host (provided the system administrator has enabled this

capability). Hosts can be used for a wide variety of applications, including content

ingestion and management, automatic recording (sometimes referred to as netcatching),

on-air play out or log (sometimes also referred to as playlist) generation. It is also

possible for a single host to perform all of these functions.

1.1.1 Users

Every host on a Rivendell network has one or more users available to it. In this context,

a 'user' is merely a set of access policies established by the system administrator that

defines what tasks a given host is or is not allowed to perform. Every host has at least

one user, called the default user. As the name suggests, this is the set of user policies

that are loaded by default when the system starts up. It is also possible to change the user

currently in use on a given host by running the RDLogin module.

1.1.2 Groups

A Rivendell group is a system of categories that is used by the audio library to classify

and organize the audio within the library. Groups are a very powerful capability, and

many operations within Rivendell can be specified on the basis of group membership.

The actual classification scheme, including the number of available groups and their

names, is completely arbitrary so as to allow each facility to tailor a schema that best fits

its own operational requirements. Designing and implementing the group schema is one

of the most important tasks facing the Rivendell system administrator, as a well-designed

schema can make long-term maintenance and management of the system substantially

easier vis-a-vis a poorly thought out one. We will cover groups in detail in the chapters

devoted to the RDLibrary and RDAdmin modules.

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Broadcast Tools SS 4.1 III Bedienungsanleitung Seite 16