[rescue] fw_ntp on IRIX
Sheldon T. Hall
shel at cmhcsys.com
Sun Oct 31 21:42:06 CST 2004
My apologies in advance if you see this more than once; I'm sending it to a
couple of lists.
I'm trying to get the current fw_ntp (from freeware.sgi.com) running on my
Challenge under IRIX 6.5.20. It works, but it will only communicate with
_some_ of the servers it should.
I have xntpd running on Solaris 7 on a SPARCclassic, inside the same
firewall.
On the Challenge (tandem.artell.net):
/etc # ntpq -p
remote refid st t when poll reach delay offset
jitter
============================================================================
==
+rtfm.artell.net bigben.ucsd.edu 3 u 129 1024 377 1.898 -42.438
4.246
*cmhcsys.cmhcsys time.nist.gov 2 u 84 1024 377 134.157 -35.446
8.915
66.111.46.200 0.0.0.0 16 u - 1024 0 0.000 0.000
4000.00
otc2.psu.edu 0.0.0.0 16 u - 1024 0 0.000 0.000
4000.00
bigben.ucsd.edu 0.0.0.0 16 u - 1024 0 0.000 0.000
4000.00
cudns.cit.corne 0.0.0.0 16 u - 1024 0 0.000 0.000
4000.00
... note that it's not talking to any of the last four servers.
On the Solaris box (rtfm.artell.net):
/etc # ntpq -p
remote refid st t when poll reach delay offset
disp
============================================================================
==
-tandem cmhcsys.cmhcsys 3 u 198 1024 376 6.21 44.599
18.08
+cmhcsys.cmhcsys time.nist.gov 2 u 36 64 337 141.82 1.992
3.02
xotc2.psu.edu gps1.tns.its.ps 2 u 40 1024 377 118.23 155.133
104.06
*bigben.ucsd.edu time.sdsc.edu 2 u 57 64 377 75.79 1.333
3.72
-cudns.cit.corne tick.usno.navy. 2 u 29 64 377 130.23 -3.287
6.73
Note that the Solaris box is talking to some of the same servers that won't
talk to the Challenge.
tandem and rtfm are peers, everyone else is a server, and outside my
firewall. I'd suspect the iptables setup on tandem, except that it is
talking to _one_ outside server. I suspect a difference in the NTP protocol
used (SGI's fw_ntp uses V4, Sun's xntpd uses V3) but both machines can talk
to the _same_ outside server.
I'm sure I've overlooked something, but ....
Clues appreciated.
Thanks.
-Shel
--
Sheldon T. Hall
shel at cmhcsys.com
206-842-2858
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