Enabling Network Time Servers - Avaya S8500 Installing And Configuring

Enabling Network Time Servers

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Important:
Avaya strongly recommends enabling Network Time Protocol (NTP) and
Important:
configuring at least one network time server. If a network time server is not used,
the Date/Time settings on the media server should be reset regularly (at least
monthly), using the Maintenance Web Interface. The network time strategy
should be determined by the network administrator.
Enabling Network Time Protocol allows you to specify one, two, or three network time servers to
provide accurate time-of-day data to the clocks on the media servers. The network time servers,
in turn, get their source timing from one of several available, highly accurate, time services on
the Internet.
To use a network time server, the NTP service must be enabled. The Avaya Installation Wizard
prompts for enabling the NTP service.
If you are not using the Installation Wizard, follow these steps:
1. Open the Maintenance Web Interface
2. Select Configure Server under Server Configuration
3. Select Configure individual services and go to Configure Time Server
4. Enter the NTS information on the Configure Time Server screen and click Change
5. Click on the Firewall link under Security.
6. Enable ntp 123/udp in the "Output from Server" column by clicking on the checkbox.
Note:
It is not necessary to enable the "Input to Server" ntp service but if it is already
Note:
enabled, you don't have to disable it.
In the next section,
prompts for information about network time servers. When prompted, enter the DNS name or IP
address for the primary (and secondary and tertiary, if any) network time server. If you enter a
DNS name instead of an IP address for the network time server, the DNS server IP address
must be specified. You are prompted for this information by the Installation Wizard.
If you are not using the Installation Wizard, the network time servers can be configured using
the Configure Server function on the Maintenance Web Interface.
For detailed information about NTP, see RFC 958.
Installing and Configuring the Avaya S8500 Media Server
Using the Installation Wizard
Enabling Network Time Servers
on page 46, the Avaya Installation Wizard
45
February 2006