huntting@boulder.Colorado.EDU (Brad Huntting) (04/11/90)
I'm looking for a clean way to set the clock on our apollos.
Timed is not acceptable, because my time keeper is about 7
hops away. Never the less, using timedc I can get a
clockdiff accurate to about 10ms.
On suns there is a utility called rdate which will syncronize
the clock to a remote machine. (Though I don't know how
well it works.)
My question is:
Where can I find source for rdate?
_________________________________________________________________
/ \
Brad Huntting / \ noaa
\ __/
\ \
/ / space environment lab
/ /syd@DSI.COM (Syd Weinstein) (04/11/90)
huntting@boulder.Colorado.EDU (Brad Huntting) writes: >I'm looking for a clean way to set the clock on our apollos. >Timed is not acceptable, because my time keeper is about 7 >hops away. Never the less, using timedc I can get a >clockdiff accurate to about 10ms. I gave up on timed as using it, when the apollo assumed mastership it lost several minutes a day, taking all our clocks with it. >On suns there is a utility called rdate which will syncronize >the clock to a remote machine. (Though I don't know how >well it works.) I have suns on my net, but I changed them also over the ntpdate. (from louie.udel.edu). ntpdate will poll master clock servers and create a local service if necessary to set your clocks to wwv time. Since I don't care if my clocks are a second off, I run it as a 'casual' user and every several hours just run ntpdate to reset it. There is also a locking method for more precise use using the ntpd version. I suggest you try that. >My question is: > Where can I find source for rdate? >_________________________________________________________________ > / \ > Brad Huntting / \ noaa > \ __/ > \ \ > / / space environment lab > / / -- ===================================================================== Sydney S. Weinstein, CDP, CCP Elm Coordinator Datacomp Systems, Inc. Voice: (215) 947-9900 syd@DSI.COM or bpa!dsinc!syd FAX: (215) 938-0235
rees@dabo.ifs.umich.edu (Jim Rees) (04/11/90)
In article <1990Apr11.135251.13805@DSI.COM>, syd@DSI.COM (Syd Weinstein) writes: > I have suns on my net, but I changed them also over the ntpdate. > (from louie.udel.edu). ntpdate will poll master clock servers > and create a local service if necessary to set your clocks to > wwv time. ntpdate has a bug that prevents it from working when run from cron. Bill Sommerfeld of Apollo sent me a fix, which I didn't use all of, but this should be enough to make it work: *** ntpdate.c_o Wed Apr 11 12:32:17 1990 --- ntpdate.c Wed Apr 11 12:31:31 1990 *************** *** 1158,1163 **** --- 1158,1165 ---- full_recvbufs = 0; free_recvbufs = sys_numservers + 2; + setpgrp(0, getpid()); + /* * Point SIGIO at service routine */