Date: Mon, 08 Feb 2010 09:16:40 -0500 From: DAve <dave.list@pixelhammer.com> To: 'User Questions' <freebsd-questions@freebsd.org> Subject: Re: NTP Stratum Message-ID: <4B701CC8.6010407@pixelhammer.com> In-Reply-To: <4B6CBCA1.4080108@radel.com> References: <4B6C94C7.6030609@pixelhammer.com> <4B6CBCA1.4080108@radel.com>
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Jon Radel wrote:
> DAve wrote:
>> Afternoon from Blizzard central in Indiana,
>>
>> I have three DNS servers across the state that I have installed and
>> configured ntpd on. They seem to be working well except they are
>> announcing themselves as Stratum 0 servers.
>>
>> As many times as I have read the man pages I can't seem to figure out
>> how I *should* set them to announce themselves at a lower stratum.
>
> Not enough information about what you're trying to do: Are these
> synchronized against an outside source of time? Are you using a local
> source of time such as a GPS receiver? Or are your servers sitting
> there with nothing but the undisciplined local clock and something like:
>
> server 127.127.1.0 # local clock
> fudge 127.127.1.0 stratum 0
>
> in the config file?
>
> What's
>
> ntpq -c peers
>
> showing?
I am syncing with three server from N.us.pool.ntp.org. I have no fudge
configured.
]# ntpq -c peers
remote refid st t when poll reach delay offset
jitter
==============================================================================
ns-01.tls.net .INIT. 16 u - 1024 0 0.000 0.000
4000.00
+www.broadbandja 66.250.45.2 3 u 510 1024 377 61.944 3.528
0.230
*point2.adamants 128.138.140.44 2 u 447 1024 377 59.360 0.863
0.154
+66.36.239.104 69.64.37.141 3 u 507 1024 377 28.763 2.623
1.182
I am pretty sure I am just reading the man pages incorrectly, but then
others things seem confusing as well.
>
> As a general sort of rule, if you're synchronized to some trusted time
> from somewhere, your stratum is going to be one higher than the stratum
> of the server you're synchronized against, and you rather have to go out
> of your way to override that.
>
Uhhh, the confusing part.
Dennis Glatting wrote:
> If you have them sync'd to external servers your servers will assume a
> stratum lower than those.
I vote for higher, I have no fudge configured and my servers are
claiming to be stratum 0 when I check them from outside. But!! Never
trusting my observations until checking again, I see when I tested that
my clocks were off. So if I cannot sync, my server continues to answer
time queries but claims to be stratum 0.
I am thinking I am getting closer to grasping this.
DAve
--
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