Apple QuickTime Streaming Server Darwin Streaming Server Bedienungsanleitung PDF herunterladen (Seite 20)

Controlling Access to Streamed Media

Darwin Streaming Server comes with an authentication module, QTSSAccessModule, which

you can use to control client access to streamed media ﬁles. Two schemes of authentication

are supported: Basic and Digest. By default, the server uses the more secure Digest

authentication.

The QTSSAccessModule, in addition to controlling access to streamed media, also lets you

control playlist access and administrator access to your streaming server. It does not control

access to media streamed from a relay server. Authentication for relayed media must be set

up by the administrator of the relay server.

The QTSSAccessModule is built into Darwin Streaming Server, so it is always enabled.

What Clients Need to Access Protected Media

Users must have QuickTime 5 or later to access a media ﬁle for which Digest authentication

is enabled. If your Darwin Streaming Server is set up to use Basic authentication, users need

QuickTime 4.1 or later. Users must enter their user name and password to view the media

ﬁle. Users who try to access a media ﬁle with an earlier version of QuickTime installed will

see the error message “401: Unauthorized.”

Setting Up Access Control

For access control to work, an access ﬁle must be present in the directory you selected as

your Movies Directory. If an access ﬁle is not present in the Darwin Streaming Server movies

directory, all clients are allowed access to the media in the directory.

To set up access control, you must do all of the following:

m create an access ﬁle

m create a user ﬁle

m add users to the ﬁle

You can also create a group ﬁle, but it’s optional.

Step 1: Create an Access File

An access ﬁle is a text ﬁle called “qtaccess” that contains information about users and groups

who are authorized to view media in the directory in which the access ﬁle is stored. The

directory you use to store streamed media can contain other directories, and each directory

can have its own access ﬁle. When a user tries to view a media ﬁle, the server checks for an

access ﬁle to see whether the user is authorized to view the media. The server ﬁrst looks for

an access ﬁle in the directory where the media ﬁle is located. If an access ﬁle is not found, it

looks for it in the enclosing directory. The ﬁrst access ﬁle that's found is used to determine

whether the user is authorized to view the media ﬁle.

Note: The access ﬁle for Darwin Streaming Server works similarly to the Apache Web server

access ﬁle.

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Apple QuickTime Streaming Server Darwin Streaming Server Bedienungsanleitung Seite 20