how to use ntp in busybox

[walter harms]

Am 23.11.2015 07:49, schrieb Wei, Catherine:
> Hi:
>      I've checked the ntpclient, and found that it can monitor the time 
> difference between server and local machine, but seems it cannot support 
> runtime configuration as Michael D. Setzer II said.
> 

We use it busybox ntp for some time now, also with ntpclient since it is convenient.
btw: ntpdate is removed from ntp some time ago.

Why do you need a runtime configuration at all ? you can always restart with a new setup,
write a small wrapper and you can use a file again.



re,
 wh



> Best regards.
> Catherine
> 
> On 11/23/2015 01:11 PM, Michael D. Setzer II wrote:
>> Not sure if this would do what you want, but I've used it with busybox setup.
>>
>> http://doolittle.icarus.com/ntpclient/
>>
>> On 22 Nov 2015 at 20:50, Isaac Dunham wrote:
>>
>> Date sent:      	Sun, 22 Nov 2015 20:50:29 -0800
>> From:           	Isaac Dunham <ibid.ag at gmail.com>
>> To:             	"Wei, Catherine" <Catherine.Wei at arris.com>
>> Subject:        	Re: how to use ntp in busybox
>> Copies to:      	"busybox at busybox.net" <busybox at busybox.net>
>>
>>> On Mon, Nov 23, 2015 at 01:40:29AM +0000, Wei, Catherine wrote:
>>>> Hi:
>>>>       In our system, we're considering if we could use ntp in busybox to
>>>> replace the ntp supported by ntp.org, which has large footprint, so I'm
>>>> doing some investigation about ntp in busybox recently but I met some
>>>> problems. I found that there's only ntpd in busybox, no ntpdate and ntpq.
>>>>       In our current system, we have a ntp wrapper to control ntp
>>>> behavior based on our requirement. We use ntpdate to sync time when
>>>> system is started, and we use ntpq to monitor and control the ntpd
>>>> behavior. For example:
>>>>        1. After ntpdate synced time, use ntpq to enable ntp.
>>>>        2. When we add our own ntp server to the server list, we will use
>>>> something like this "ntpq -c "keyid id" -c "passwd pwd" -c ":config
>>>> server 10.172.1.1 minpoll 3 maxpoll 4 burst"
>>>>
>>>>        I don't know if there's some tools related to ntpq in busybox, so
>>>> we can remove the current ntp in our system and use ntpd in busybox.
>>>> Appreciate your quick response, thank you very much.
>>>>
>>> Busybox ntp does not support any runtime configuration; ntpq corresponds
>>> to unimplemented functionality.
>>>
>>> ntpdate is not provided, but equivalent behavior can be obtained with
>>> ntpd -q -p PEER [-p PEER2 ...]
>>>
>>> OpenNTPD, from which Busybox ntpd came, provides an "ntpctl" command,
>>> but it's misnamed: it only displays information from ntpd.
>>>
>>> You might get further looking at NTPsec.
>>>
>>>
>>> HTH,
>>> Isaac Dunham
>>> _______________________________________________
>>> busybox mailing list
>>> busybox at busybox.net
>>> http://lists.busybox.net/mailman/listinfo/busybox
>>
>> +----------------------------------------------------------+
>>    Michael D. Setzer II -  Computer Science Instructor
>>    Guam Community College  Computer Center
>>    mailto:mikes at kuentos.guam.net
>>    mailto:msetzerii at gmail.com
>>    http://www.guam.net/home/mikes
>>    Guam - Where America's Day Begins
>>    G4L Disk Imaging Project maintainer
>>    http://sourceforge.net/projects/g4l/
>> +----------------------------------------------------------+
>>
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