NCast PR-HD - Manual (Page 67)

NCast Presentation Recorder Reference Manual
If the interface is enabled, secure the interface with a unique and non-dictionary password, and configure the
IP restriction field to only allow the IP address of the controller unit to command the Presentation Recorder.
7.6.1. Telnet
Uncheck access if the serial command interface is not in use.
7.6.2. Password
Choose a password, which has random characters and numbers and is at least 8 characters in length.
Unfortunately, Telnet protocol sends this password in clear-text, so network sniffers may be able to
compromise this entry.
7.6.3. IP Restriction
This limits the valid IP addresses, which may send commands to the Presentation Recorder. Normally this
field should contain a single IP address, which is the IP of the controller in charge of the Presentation
Recorder. Thus, if the password is compromised an attacker will still not gain access to the unit. This field
may contain:
www.xxx.yyy.zzz A single address
www.xxx.yyy.* An address range
www.xxx.yyy.0/24 A subset of a network (CIDR notation)
www.xxx.yyy.zzz,sss.ttt.uuu.vvv A comma-separated list of addresses
www.xxx.yyy.zzz,sss.ttt.uuu.* A comma-separated list of addresses and ranges
Standard CIDR notation is documented in IETF RFC 4632.
7.6.4. Port
For security reasons the default Telnet port is not utilized. Enter a port number if the factory setting is not
acceptable.
7.7. S CHEDULER
7.7.1. Overview
The PR-HD Series Scheduler is a feature that allows the manager of one or more Presentation Recorders to
schedule these appliances through use of a Google calendar or through use of industry-standard iCalendar
files. The manager can start and stop each Presentation Recorder at a predetermined time, load unique
settings for each individual presentation, send serial control commands to each Presentation Recorder to
provide additional functionality, and specify how and where the Presentation Recorder sends its output, all
without touching the actual Presentation Recorder user interface. All that is required is one or more
Presentation Recorders, each with a connection to the Internet, and access to a Google calendar or an
iCalendar file, no matter where in the world the equipment is located.
7.7.2. Components of the Solution
The Scheduler Implementation uses three components to allow automatic start/stop scheduling of one or
more Presentation Recorders in a network. These components are:
• An administrative interface based on Google Calendar or other Calendar system using iCalendar
• A scheduler process which queries the calendar information and activates the Presentation
Recorder.
• The Presentation Recorder IP serial command interface, which receives commands at the
scheduled times.
7.7.3. Scheduler Overview
The following sections describe how to use a Google Calendar account or an iCalendar file to setup a
schedule for one or more Presentation Recorders and how to use the Scheduler web page.
NCast Corporation Revision 2.2
Page 67