sys ntp

sys ntp(1)		      BIG-IP TMSH Manual		    sys ntp(1)



NAME
       ntp - Configures the Network Time Protocol (NTP) daemon for the
       BIG-IP(r) system.

MODULE
       sys

SYNTAX
       Configure the ntp component within the sys module using the following
       syntax.

   MODIFY
	modify ntp
	  options:
	    description [string]
	    include [string]
	    restrict [add | delete | replace-all-with] {
	      [string] {
		address [IP address]
		default-entry [enabled | disable]
		description [string]
		ignore [enabled | disable]
		kod [enabled | disable]
		limited [enabled | disable]
		low-priority-trap [enabled | disable]
		mask [IP address]
		no-modify [enabled | disable]
		non-ntp-port [enabled | disable]
		no-peer [enabled | disable]
		no-query [enabled | disable]
		no-serve-packets [enabled | disable]
		no-trap [enabled | disable]
		no-trust [enabled | disable]
		ntp-port [enabled | disable]
		version [enabled | disable]
	      }
	    }
	    restrict none
	    servers [add | delete | replace-all-with] {
	      [hostname | IP address] ...
	    }
	    servers none
	    timezone [string]

	edit ntp
	  options:
	    all-properties
	    non-default-properties

   DISPLAY
	list ntp
	list ntp [option]
	show running-config ntp
	show running-config ntp [option]
	  options:
	    all-properties
	    non-default-properties
	    one-line

DESCRIPTION
       You can use this component to configure the NTP servers for the system.

EXAMPLES
       modify ntp servers add {192.168.1.245}

       Adds the NTP server with the IP address, 192.168.1.245, to the system.

       modify ntp servers replace-all-with {time.f5net.com}

       Replaces the existing list of NTP servers with a single host,
       time.f5net.com.

       modify ntp timezone "America/Los_Angeles"

       Sets the system time to Pacific Standard Time.

       modify ntp restrict add { basicrestrict { default-entry enable ignore
       enable } }

       Adds a default restriction denying all packets.

OPTIONS
       description
	    User defined description.

       include
	    Warning: Do not use this option without assistance from the F5
	    Technical Support team. The system does not validate the commands
	    issued using the include option. If you use this option
	    incorrectly, you put the functionality of the system at risk.

       restrict
	    Specifies a set of access restrictions.

	    address
		 The address for the entry. See also, the mask option. The
		 default value is 0.0.0.0.

	    default-entry
		 Specifies whether the entry is the default entry. The default
		 value is disabled.

	    description
		 User defined description.

	    ignore
		 Specifies whether all packets will be ignored. The default
		 value is disabled.

	    kod  Specifies whether a kod (kiss of death) packet will be sent
		 when an access violation occurs. The default value is
		 disabled.

	    limited
		 Specifies whether service will be denied if packet spacing
		 limits are violated. The default value is disabled.

	    low-priority-trap
		 Specifies whether lower priority traps will be overridden by
		 normal priority traps. The default value is disabled.

	    mask The mask for the entry. See also, the address option. The
		 default value is 0.0.0.0.

	    no-modify
		 Specifies whether ntpq and ntpdc queries that attempt to
		 modify the server are allowed. The default value is disabled.

	    non-ntp-port
		 When enabled, the restrict entry will be matched only if the
		 source port is not the standard NTP UDP port (123). The
		 default value is disabled.

	    no-peer
		 Specifies whether packets will be denied if they mobilize a
		 new association. The default value is disabled.

	    no-query
		 Specifies whether ntpq and ntpdc queries will be denied. The
		 default value is disabled.

	    no-serve-packets
		 Specifies whether all queries except ntpq and ntpdc will be
		 denied. The default value is disabled.

	    no-trap
		 Specifies whether to decline the mode 6 control message trap
		 service to matching hosts. The default value is disabled.

	    no-trust
		 Specifies whether to reject packets that are not
		 cryptographically authenticated. The default value is
		 disabled.

	    ntp-port
		 When enabled, the restrict entry will be matched only if the
		 source port is the standard NTP UDP port (123). The default
		 value is disabled.

	    version
		 Specifies whether packets will be rejected if they do not
		 match the local NTP version. The default values is disabled.

       servers
	    Configures NTP servers for the BIG-IP system.

       timezone
	    Specifies the time zone that you want to use for the system time.

SEE ALSO
       edit, list, modify, show, tmsh

COPYRIGHT
       No part of this program may be reproduced or transmitted in any form or
       by any means, electronic or mechanical, including photocopying,
       recording, or information storage and retrieval systems, for any
       purpose other than the purchaser's personal use, without the express
       written permission of F5 Networks, Inc.

       F5 Networks and BIG-IP (c) Copyright 2009-2010. All rights reserved.



BIG-IP				  2010-10-06			    sys ntp(1)