TANDBERG D14049.04 Network Card User Manual


 
59
D14049.04
JULY 2008
Grey Headline (continued)
About the NTP Server
The NTP server is a remote server with which the VCS
synchronizes in order to ensure its time setting is accurate. The
NTP server provides the VCS with UTC time.
Accurate timestamps play an important part in authentication,
helping to guard against replay attacks. For this reason, if you
are using authentication, both the VCS and the endpoints must
use an NTP server to synchronize their system time.
Traversal clients must always authenticate with traversal
servers, even if the server’s Authentication Mode is Off.
Therefore in order for a traversal client and traversal server to
connect to each other, both must be congured with details of
an NTP server.
About the Time Zone
The NTP server provides the VCS with UTC time. You can
also determine the local time to be used on your system by
conguring the Time Zone. This takes the UTC time and offsets
it by the number of hours specied by the selected time zone to
make the local time.
The local time is used throughout the web UI and to set the
timestamp that appears at the start of each line in the Event
Log.
Save
Click here to save your
changes.
To congure the VCS’s NTP settings:
System Conguration > NTP
You will be taken to the NTP page.
xConguration NTP Addres
s
xConguration TimeZone Nam
e
NTP server
Sets the IP address or
FQDN (or server address, if
a DNS Domain Name has
also been congured) of the
NTP server to be used when
synchronizing system time.
Time zone
Sets the local time zone of
the VCS.
Conguration
Overview
TANDBERG VIDEO COMMUNICATIONS SERVER
ADMINISTRATOR GUIDE
Introduction Getting Started
Overview and
Status
System
Conguration
VCS
Conguration
Zones and
Neighbors
Call
Processing
Bandwidth
Control
Firewall
Traversal
Appendices
Applications Maintenance
NTP