[AG-TECH] NTP Questions

[Thomas M. Mueller]

try using dateconfig for easy ntp setup.

On Fri, 2002-07-12 at 11:19, Mike Daw wrote:
> I've got a couple of questions related to NTP. Bear with me, this is not a
> short email...
> 
> I've built my audio and video capture machines manually (i.e. not AGiB).
> That means that I installed all the bits separately. That also means that my
> NTP wasn't nicely configured and "just working".
> 
> Don Morton helpfully told me what should go in my file /etc/ntp.conf:
> 
> server ntp-1.accessgrid.org
> driftfile /etc/ntp/drift
> 
> I restarted ntpd afterwards.
> 
> My time stayed as it was (about 10 minutes wrong!). Do I have to wait to get
> into synch? Maybe, but my settings don't look right anyway. (Read on...)
> 
> I've been scooting around some of the docs about ntp and tried running
> ntpq - with 'pe', 'as' and 'rv'. I got this:
> 
> ---------Start output
> [root at audio root]# ntpq
> ntpq> pe
>      remote           refid      st t when poll reach   delay   offset
> jitter
> ============================================================================
> ==
>  ag.mcs.anl.gov  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 48124  8000   yes   yes  none    reject
> ntpq> rv 48124
> status=8000 unreach, conf, no events,
> srcadr=ag.mcs.anl.gov, srcport=123, dstadr=192.150.184.66, dstport=123,
> leap=11, stratum=16, precision=-17, rootdelay=0.000,
> rootdispersion=0.000, refid=0.0.0.0, reach=000, unreach=13, hmode=3,
> pmode=0, hpoll=6, ppoll=10, flash=00 ok, keyid=0, offset=0.000,
> delay=0.000, dispersion=0.000, jitter=4000.000,
> reftime=00000000.00000000  Thu, Feb  7 2036  6:28:16.000,
> org=00000000.00000000  Thu, Feb  7 2036  6:28:16.000,
> rec=00000000.00000000  Thu, Feb  7 2036  6:28:16.000,
> xmt=c0d96d24.d4832335  Fri, Jul 12 2002 15:58:44.830,
> filtdelay=     0.00    0.00    0.00    0.00    0.00    0.00    0.00    0.00,
> filtoffset=    0.00    0.00    0.00    0.00    0.00    0.00    0.00    0.00,
> filtdisp=   16000.0 16000.0 16000.0 16000.0 16000.0 16000.0 16000.0 16000.0
> ntpq> quit
> [root at audio root]#
> ---------End output
> 
> Do I have a problem?
> 
> Second question. (Is anyone still with me, I wonder...) On my other machine,
> I tried installing xntp. Possibly not a smart idea, but anyway.
> 
> Here, I got a different (possibly worse because I've got 'reach=no' rather
> than 'auth=no'?) output:
> 
> ---------Start output
> root at video etc]# /usr/sbin/ntpq
> ntpq> pe
>      remote           refid      st t when poll reach   delay   offset
> disp
> ============================================================================
> ==
>  ag.mcs.anl.gov  0.0.0.0         16 u    -   64    0     0.00    0.000
> 16000.0
> ntpq> as
> ind assID status  conf reach auth condition  last_event cnt
> ===========================================================
>   1 37636  8000   yes    no
> ntpq> quit
> ---------End output
> 
> Help would be gratefully received...
> 
> Thanks,
> Mike
> 
> -----------------------oOo-----------------------
> Michael Daw
> Computer Services for Academic Research (CSAR)
> 
> Manchester Computing, Kilburn Building,
> University of Manchester, Manchester M13 9PL, UK
> 
> Tel: +44 (0)161 275 7026
> Fax: +44 (0)161 275 6800
> Email: michael.daw at man.ac.uk
> 
> http://www.csar.cfs.ac.uk/staff/daw/
> -----------------------OoO-----------------------
>