Synchronizing clocks in a network – Lenovo ThinkServer TD200 User Manual

Page 24

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number from 00 - 23 as represented on a 24-hour clock. The minutes (mm) and
seconds (ss) must be numbers from 00 - 59.

6.

In the GMT offset field, select the number that specifies the offset, in hours,
from Greenwich mean time (GMT), corresponding to the time zone where the
server is located.

7.

Select or clear the Automatically adjust for daylight saving changes check box
to specify whether the IMM clock automatically adjusts when the local time
changes between standard time and daylight saving time.

8.

Click Save.

Synchronizing clocks in a network

The Network Time Protocol (NTP) provides a way to synchronize clocks
throughout a computer network, enabling any NTP client to obtain the correct time
from an NTP server.

The IMM NTP feature provides a way to synchronize the IMM real-time clock with
the time that is provided by an NTP server. You can specify the NTP server that is
to be used, specify the frequency with which the IMM is synchronized, enable or
disable the NTP feature, and request immediate time synchronization.

The NTP feature does not provide the extended security and authentication that
are provided through encryption algorithms in NTP Version 3 and NTP Version 4.
The IMM NTP feature supports only the Simple Network Time Protocol (SNTP)
without authentication.

To set up the IMM NTP feature settings, complete the following steps:
1.

Log in to the IMM on which you want to synchronize the clocks in the
network. For more information, see Chapter 2, “Opening and using the IMM
Web interface,” on page 9.

2.

In the navigation pane, click System Settings and scroll down to the IMM
Date and Time

area.

3.

Click Set IMM Date and Time.

4.

Under Network Time Protocol (NTP), you can select from the following
settings:

NTP auto-synchronization service

Use this selection to enable or disable automatic synchronization of the
IMM clock with an NTP server.

NTP server host name or IP address

Use this field to specify the name of the NTP server to be used for
clock synchronization.

NTP update frequency

Use this field to specify the approximate interval (in minutes) between
synchronization requests. Enter a value between 3 - 1440 minutes.

Synchronize Clock Now

Click this button to request an immediate synchronization instead of
waiting for the interval time to lapse.

5.

Click Save.

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Integrated Management Module: User Guide

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