[LUAU] Favorite NTP server?

Al Plant noc at hdk5.net
Thu Feb 20 15:43:27 PST 2014


Brian Chee wrote:
> Why not run your own NTP server? The stratum1 Raspberry Pi would cost under
> $100 in hardware and that includes a pretty long external GPS patch antenna
> that you can stick to the inside of a window.
> 
> http://www.satsignal.eu/ntp/Raspberry-Pi-NTP.html
> 
> Though the GPS unit from Adafruit has an external antenna connector and the
> patch antenna is bitchin. I'm considering combining projects to do a gps
> synched clock (7 segment displays) that also serves NTP.
> 
> /brian chee
> 
> ########## 

Brian,

   Cool Project....

  AL.


> On Thu, Feb 20, 2014 at 3:10 PM, Jeff Mings <jeffm at lava.net> wrote:
> 
>> Yes, Brian, the first NTP pool address I listed is from ntp.pool.org, but
>> it may be farther away /slower depending upon which server in the pool
>> answers the query.
>>
>>     Al, I always appreciate your suggestions, but I noticed that the NASA
>> NTP server is really not supposed to be publicly available:
>> http://support.ntp.org/bin/view/Servers/PublicTimeServer000270
>> Strangely, the ntp.hawaii.edu server doesn't have a stratum rating, and I
>> know that a few years ago, it oddly jumped forward to the year 2030:
>> http://support.ntp.org/bin/view/Servers/PublicTimeServer000453
>>
>>     In terms of ping time and likely long-term reliability, the NIST
>> server in LA is looking like my best option : nist1-la.ustiming.org
>>
>> Sincerely,
>> -Jeff
>>
>>
>>
>>
>> On 02/20/2014 12:52 PM, Brian Chee wrote:
>>
>>> Can't answer that, but Alan Whinery is behind it and it's providing NTP
>>> for
>>> UHM ITS facilities. Have you thought of ntp.pool.org?
>>>
>>> /brian chee
>>>
>>>
>>>
>>> On Thu, Feb 20, 2014 at 2:48 PM, Jeff Mings <jeffm at lava.net> wrote:
>>>
>>>  That was fast!  You are SO on it, Mr. Chee!  :D
>>>>      Since you work with the UH IT dept., I'm not surprised you produced
>>>> a
>>>> UH server.  Is this particular server _reliably_ deployed?  I.e., will it
>>>> likely be consistently available 5 years from now?  There are a lot of
>>>> devices, like phones, that I need to set a good NTP server on that I
>>>> might
>>>> not check for several years.
>>>>
>>>> Thanks Brian,
>>>> -Jeff
>>>>
>>>> On 02/20/2014 12:44 PM, Brian Chee wrote:
>>>>
>>>>  ntp1.hawaii.edu canonical name = ntproundtop.hawaii.edu.
>>>>> Name: ntproundtop.hawaii.edu
>>>>> Address: 128.171.235.62
>>>>>
>>>>>
>>>>> On Thu, Feb 20, 2014 at 2:40 PM, Jeff Mings <jeffm at lava.net> wrote:
>>>>>
>>>>>   Hi All!
>>>>>
>>>>>>       After the new NTP DOS vulnerability, a lot of NTP servers are
>>>>>> changing
>>>>>> their operation.
>>>>>>
>>>>>>       I have used the navy's atomic clock at tick.mhpcc.hpc.mil for
>>>>>> quite
>>>>>> some time, but it appears that they may be reducing access to it now.
>>>>>>
>>>>>>       Many of my clients use RoadRunner locally, which doesn't seem to
>>>>>> have
>>>>>> a publicly-listed NTP server in this area.  I could use the pool from
>>>>>> CentOS, or even the one from Apple, but I want to make sure I use a
>>>>>> server
>>>>>> or pool of them that won't be overwhelmed/useless like the Microsoft
>>>>>> NTP
>>>>>> servers.  So far, using 0.us.pool.ntp.org  looks like a solid choice
>>>>>> for
>>>>>> long-term reliability, but nist1-la.ustiming.org yields better ping
>>>>>> times, and the NIST has a nice status page at
>>>>>> http://tf.nist.gov/tf-cgi/
>>>>>> servers.cgi   for checking service.
>>>>>>
>>>>>> Any better suggestions?
>>>>>>
>>>>>> Thanks,
>>>>>>
>>>>>> -Jeff
>>>>>>
>>>>>>
>>>>>> _______________________________________________
>>>>>> LUAU at lists.freesoftwarehawaii.org mailing list
>>>>>> http://lists.freesoftwarehawaii.org/listinfo.cgi/luau-
>>>>>> freesoftwarehawaii.org
>>>>>>
>>>>>>
>>>>>>
>>>>>  _______________________________________________
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>>>>
>>>>
>>>
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>>
> 
> 
> 


-- 

~Al Plant - Honolulu, Hawaii -  Phone:  808-284-2740
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