Product Documentation

ntp server

Sep 12, 2016

The following operations can be performed on "ntp server":

add | rm | set | unset | show

add ntp server

Adds an NTP server to the appliance. This server can be used to synchronize the time on the appliance to the network time.

Synopsys

add ntp server (<serverIP> | <serverName>) [-minpoll <positive_integer>] [-maxpoll <positive_integer>] [-autokey | -key <positive_integer>]

Arguments

serverIP

IP address of the NTP server.

serverName

Fully qualified domain name of the NTP server.

minpoll

Minimum time after which the NTP server must poll the NTP messages. In seconds, expressed as a power of 2.

Default value: NS_NTP_MINPOLL_DEFAULT_VALUE

Minimum value: 4

Maximum value: 17

maxpoll

Maximum time after which the NTP server must poll the NTP messages. In seconds, expressed as a power of 2.

Default value: NS_NTP_MAXPOLL_DEFAULT_VALUE

Minimum value: 4

Maximum value: 17

autokey

Use the Autokey protocol for key management for this server, with the cryptographic values (for example, symmetric key, host and public certificate files, and sign key) generated by the ntp-keygen utility. To require authentication for communication with the server, you must set either the value of this parameter or the key parameter.

key

Key to use for encrypting authentication fields. All packets sent to and received from the server must include authentication fields encrypted by using this key. To require authentication for communication with the server, you must set either the value of this parameter or the autokey parameter.

Minimum value: 1

Maximum value: 65534

rm ntp server

Removes an NTP server. You can specify the server by IP address or by name.

Synopsys

rm ntp server (<serverIP> | <serverName>)

Arguments

serverIP

IP address of the NTP server to be removed.

serverName

Name of the NTP server to be removed.

set ntp server

Modifies the specified attributes of an NTP server.

Synopsys

set ntp server (<serverIP> | <serverName>) [-minpoll <positive_integer>] [-maxpoll <positive_integer>] [-preferredNtpServer ( YES | NO )] [-autokey | -key <positive_integer>]

Arguments

serverIP

IP address of the NTP server to be modified.

serverName

Name of the NTP server to be modified.

minpoll

Minimum time after which the NTP server must poll the NTP messages. In seconds, expressed as a power of 2.

Default value: NS_NTP_MINPOLL_DEFAULT_VALUE

Minimum value: 4

Maximum value: 17

maxpoll

Maximum time after which the NTP server must poll the NTP messages. In seconds, expressed as a power of 2.

Default value: NS_NTP_MAXPOLL_DEFAULT_VALUE

Minimum value: 4

Maximum value: 17

preferredNtpServer

Preferred NTP server. The NetScaler appliance chooses this NTP server for time synchronization among a set of correctly operating hosts.

Possible values: YES, NO

Default value: NO

autokey

Use the Autokey protocol for key management for this server, with the cryptographic values (for example, symmetric key, host and public certificate files, and sign key) generated by the ntp-keygen utility. To require authentication for communication with the server, you must set either the value of this parameter or the key parameter.

key

Key to use for encrypting authentication fields. All packets sent to and received from the server must include authentication fields encrypted by using this key. To require authentication for communication with the server, you must set either the value of this parameter or the autokey parameter.

Minimum value: 1

Maximum value: 65534

unset ntp server

Unset the specified attributes of an NTP server..Refer to the set ntp server command for meanings of the arguments.

Synopsys

unset ntp server (<serverIP> | <serverName>) [-autokey] [-minpoll] [-maxpoll] [-preferredNtpServer] [-key]

show ntp server

Displays information about an NTP server. You can specify the server by IP address or by name.

Synopsys

show ntp server [<serverIP> | <serverName>]

Arguments

serverIP

IP address of the NTP server about which to display information.

serverName

Name of the NTP server about which to display information.

Outputs

minpoll

Minimum poll interval of the server in secs.

maxpoll

Maximum poll interval of the server in secs.

preferredNtpServer

Preferred NTP server. The NetScaler appliance chooses this NTP server for time synchronization among a set of correctly operating hosts.

autokey

Use the Autokey protocol for key management for this server, with the cryptographic values (for example, symmetric key, host and public certificate files, and sign key) generated by the ntp-keygen utility. To require authentication for communication with the server, you must set either the value of this parameter or the key parameter.

key

Key to use for encrypting authentication fields. All packets sent to and received from the server must include authentication fields encrypted by using this key. To require authentication for communication with the server, you must set either the value of this parameter or the autokey parameter.

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