[ntp:hackers] Modern FreeBSD NTP Stratum 1 server?

Warner Losh imp at bsdimp.com
Wed Dec 16 22:41:37 UTC 2015


Ian Lepore recently committed a number of changes to make
NTPd paced by serial port PPS work more reliably. You might
want to give -current a shot...

Warner

On Wed, Dec 16, 2015 at 12:37 PM, tglassey at earthlink.net <
tglassey at earthlink.net> wrote:

> OK let me do an install and let you know tomorrow.
>
> I have my home GPSD reciever set up on freebsd with no issues there. I am
> using the LEA6T based Synergy GPS system, and this PPS distribution amp for
> splitting it up to harmonize a number of clocks.
>
> By the way - I have had kick-ass results in using the TAPR TADD-3 units
> for PPS distribution. The cost is very reasonable. The kits assembly is a
> pain but hey - get a magnifying glass and it can be done.
>
> Anyway, they (TADD-3's) for under 120 USD each will support 8 taps - 6ea
> BNC and 2 ea DB9's. The units a split across two channels which by default
> are ganged together but it can be split into a dual source model with each
> source driving 3ea BNC's and 1ea of the DB-9's.
>
> Way cool for the money.  They come from Tucson Area Packet Radio. I
> overbought on the kits so if anyone wants one let me know.
>
> Todd
>
>
>
> On 12/16/2015 11:48 AM, Terje Mathisen wrote:
>
>> tglassey at earthlink.net wrote:
>>
>>> Terje can you install GPSD as well - does it compile and link properly?
>>> Does it load?
>>>
>>
>> Yes, I did a ports installation of gpsd, accoding to it everything was
>> fine except for no PPS signal.
>>
>>>
>>> On 12/16/2015 05:59 AM, Terje Mathisen wrote:
>>>
>>>> I have been trying, unsuccessfully, for a couple of days now to replace
>>>> my old S1 server (ntp1.tmsw.no) which was entered in the pool with an
>>>> IPv6 address only:
>>>>
>>>> The new server was based on PC-BSD 10.1, then I downloaded all the
>>>> ports and all the kernel source code in order to build a custom kernel.
>>>>
>>>> (I first tried to simply use kldload to load the PPS modulu which
>>>> seemed to work but when configuring ntpd (latest ntp-dev code) it didn't
>>>> seem like pps was located so the ntpd binary was built without PPS support.)
>>>>
>>>
>>> Interesting - did a device entry appear in /dev for the install?
>>>
>>
>> Yes, afair.
>>
>> Terje
>>
>>>
>>>> Anyway, after the custom kernel was installed I did get one YES for pps
>>>> during configure, but that didn't seem to be enough, because when I load
>>>> ntpd I get messages in /var/log/messages stating that the ppsapi is
>>>> unusable. :-(
>>>>
>>>> So my question to the list is: Does anyone have recent experience in
>>>> making ntpd + pps work on FreeBSD?
>>>>
>>>> Terje
>>>> PS. The reason I'm doing this is because the old server crashed, so I
>>>> can't simply copy all the conf files from that one. :-(
>>>>
>>>>
>>>
>>
>>
> --
> Regards,
> Todd Glassey
> Standard Confidentiality Provisions and Disclaimer Provisions apply;
>
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