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NTP Protocol

...

Configuration

The server.xml file contains the bas configuration for the NTP server :

Code Block

<ntpServer id="ntpServer" ipPort="60123" nbThreads="2"/>

With such a configuration, the NTP server will listen to port 60123, with UDP and TCP transports selected.

Common Service Configuration Parameters

Here is the list of parameters you can set. The bold parameters are mandatory.

The PID for this service. A PID is a unique identifier for an instance of a service. PID's are used by OSGi's Config Admin service to dynamically inject configuration into a service when the service is started

Parameter

Default value

Description

Optionnal

id

"ntpServer"

Do not change this value : it is used internally to identify the NTP server instance

NA

serviceName

Apache NTP Service

The friendly name of this service.

yes

enabled

true

Tells if the server is enabled or not.

yes

ipAddress

localhost

The IP address for this service.

yes

ipBacklog

50

The backlog size for both UDP and TCP transport

yes

enabled

false

Whether this service is enabled.

ipPort

123

The IP port for this service. . It is valid for both UDP and TCP transports.
to define only one of those two transports, or to set a specific port for each transport, use the two following
parameters

yes

nbThreads

2

The number of thread used by the service IoProcessor

yes

tcpBacklog

50

The backlog size for the TCP transport.

yes

tcpPort

123

The TCP port

ipAddress

No default.

The IP address for this service.

yes

serviceName nbTcpThreads

Apache NTP Service 2

The friendly name of this service.

servicePid

org.apache.ntp

number of thread used by the TCP service IoProcessor

yes

udpBacklog

50

The backlog size for the UDP transport

yes

udpPort

123

The UDP port for this service.

yes

nbUdpThreads

2

The number of thread used by the UDP service IoProcessor

yes

Note

The last six parameters should be used only if one want to set up only a single transport, or when UDP and TCP transport don't share the same port.

More Information

For help with more advanced configurations, check out our Interoperability Guide.