[Gllug] Linux ntp talking to MS Windows

[Alain Williams]

Hi,

I have a Linux server (RedHat Enterprise 4) that I am trying to synchronise the
time off a MS Windows server 2003 standard edition. It doesn't work.

I can connect with ntpdc and see that it is slowly drifting:

	ntpdc> pe
	     remote           local      st poll reach  delay   offset    disp
	=======================================================================
	*LOCAL(0)        127.0.0.1       10   64  377 0.00000  0.000000 0.03052
	=vega.XXXX       10.0.0.3         2 1024  377 0.00052 -2.063748 0.17433
	=lantree.XXXX    10.0.0.3        16 1024    0 0.00000  0.000000 0.00000

(Yes, I never got a reply from the second one).
The above shows that ntpdc works.

If I go:
	ntpdate vega
the time becomes synchronised exactly (and ntpdc confirms this), now is about a day
since I last did this.

I do notice that Linux ntpd sends out NTPv4 packets and vega replies NTPv3, but the
documentation suggests that this should work. (This I learned from tcpdump).

I have a feeling that I have done something stupid, npt is normally a no brainer.

Can anyone point me in the right direction ?

TIA

-- 
Alain Williams
Parliament Hill Computers Ltd.
Linux Consultant - Mail systems, Web sites, Networking, Programmer, IT Lecturer.
+44 (0) 787 668 0256  http://www.phcomp.co.uk/

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