[PLUG] Re: ntp...how do I know it's working? (Tom Diehl)

["Mike Chirico" <mchirico@comcast.net>]

> Date: Mon, 22 Mar 2004 10:17:51 -0500 (EST)
> From: Tom Diehl <tdiehl@rogueind.com>
> To: plug@lists.phillylinux.org
> Subject: [PLUG] Re: ntp...how do I know it's working?
> Reply-To: plug@lists.phillylinux.org
>
> On Mon, 22 Mar 2004, Mike Chirico wrote:
>
> > Is there a quick way to find out if ntp is working correctly?
>
> Yup!!
> "ntpq servername"
> Try the pe as and rv commands.
>
> Below is what one of my ntp serves looks like:
> ntpq> pe
>      remote           refid      st t when poll reach   delay   offset
jitter
>
========================================================================
======
> +icarus.rogueind NAVOBS1.MIT.EDU  2 u   52 1024  377    0.170    1.831
0.334
> *taz.rogueind.co time-B.timefreq  2 u  875 1024  377    0.519   -6.018
1.470
>
> ntpq> as
> ind assID status  conf reach auth condition  last_event cnt
> ===========================================================
>   1 33220  9424   yes   yes  none  candidat   reachable  2
>   2 33221  9624   yes   yes  none  sys.peer   reachable  2
>
> ntpq> rv
> status=0674 leap_none, sync_ntp, 7 events, event_peer/strat_chg,
> version="ntpd 4.1.2@1.892 Wed Oct 29 06:06:59 EST 2003 (1)",
> processor="i686", system="Linux2.4.22-1.2174.nptl", leap=00,
stratum=3,
> precision=-16, rootdelay=70.282, rootdispersion=78.623, peer=33221,
> refid=taz.rogueind.com,
> reftime=c4097d08.05ef416b  Mon, Mar 22 2004  9:56:08.023, poll=10,
> clock=c409807a.3cfb43d8  Mon, Mar 22 2004 10:10:50.238, state=4,
> offset=-0.942, frequency=150.421, jitter=7.309, stability=0.004
> ntpq>

Thank you.  There is a "reject" on my system using the "as" command, but
I assume that's normal when authentication is disabled. Comparing your
"frequency" and "stablility" with the values on my server leaves to
wondering if something isn't working correctly.  It seems like I should
have numbers here, but I'm still reading the documentation.


ntpq> pe
     remote           refid      st t when poll reach   delay   offset
jitter
========================================================================
======
 tock.usno.navy. 0.0.0.0         16 u    -   64    0    0.000    0.000
4000.00
ntpq> as
ind assID status  conf reach auth condition  last_event cnt
===========================================================
  1 51964  8000   yes   yes  none    reject
ntpq> rv
status=c011 sync_alarm, sync_unspec, 1 event, event_restart,
version="ntpd 4.1.1c-rc1@1.836 Thu Feb 13 12:17:19 EST 2003 (1)",
processor="i686", system="Linux2.6.4-thinUSB-ch1", leap=11, stratum=16,
precision=-17, rootdelay=0.000, rootdispersion=0.360, peer=0,
refid=0.0.0.0, reftime=00000000.00000000  Thu, Feb  7 2036  1:28:16.000,
poll=4, clock=c409f3ef.98226809  Mon, Mar 22 2004 18:23:27.594, state=1,
offset=0.000, frequency=0.000, jitter=0.008, stability=0.000
ntpq>


Thanks,

Mike Chirico

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