npt/xntpd time sync from AIX to Win2k 1

[dwcasey]

Anyone done this? I have my ntp.conf setup:

server xx.xx.xx.xx prefer # server01.domain.com
#
logfile /var/adm/ntp.log
statsdir /var/ntp/ntpstats/
driftfile /etc/ntp.drift
tracefile /etc/ntp.trace

And xntpdc -s shows:

server02:/var/adm # xntpdc -s
remote local st poll reach delay offset disp
=======================================================================
server01.domain xx.xx.xx.xx 2 64 17 0.00060 3593.4264 1.87503

But my time on AIX is not changing...xntpdc -s shows:

server02:/var/adm # xntpdc -c "pstats xx.xx.xx.xx"
remote host: server01.domain.com
local interface: xx.xx.xx.xx
time last received: 55s
time until next send: 9s
reachability change: 247s
packets sent: 4
packets received: 4
bad authentication: 0
bogus origin: 0
duplicate: 0
bad dispersion: 4
bad reference time: 0
candidate order: 0

 

[dwcasey]

I should also add that manually executing the ntpdate command works fine against the Win2k NTP server. Date/time gets set fine that way.

But what I'm seeing with xntpd is that after a minute or, it goes away...the subsystem stops running. Do I have to specify any additional options to have it get updated AND to keep running? Thanks again.

 

[bi]

Take a look at this long thread. Another user had problems keeping xntpd running and this thread gives tips on that:

thread52-302779

 

[dwcasey]

Will do, thanks.

I did find one thing, though. Appears that if there is too much of a diff between the two machines, AIX does not want to set the time??? Anyway, thanks for the link.

 

[bi]

xntp uses slewing (I think that's the name) so the time change will be gradual. Older variations of time sync used slamming (again, I think that's the name): the time would be changed immediately ("slammed&quot. This could cause problems with databases (especially if the time went back, rather than forward).

If you don't see a gradual decline in the difference in the time between the two servers in about an hour, post back and we'll work it out.

Thanks for the star!