On Mon, 10 Feb 2003, Jameson C. Burt wrote:
> Curiously, since I already run ntpd on my main computer
> ("server" serving DHCP and NFS to my LTS machine,
> and that "server" accomodates time according to 3 internet ntp-computers),
> the "ntpdate" solution works well, but the seemingly simpler
> "rdate" approach would probably require installing many more files
> on my LTSP machine.
>
> With "ntpd" already running on my server, here are the changes I made to
> my LTSP machine.
> I added
> /opt/ltsp/i386/usr/sbin/ntpdate
> /opt/ltsp/i386/lib/libreadline.so.4 #a link
> /opt/ltsp/i386/lib/libreadline.so.4.2
> And I added the following line to /opt/ltsp/i386/etc/rc.webcam,
> /usr/sbin/ntpdate `grep server /etc/hosts |sed 's/ .*//'`
> On my LTS machine, this just runs
> ntpdate 192.168.1.1
>
> Because a basic LTS keeps no "localtime" ("zoneinfo" like "US/Eastern"),
> the above will probably set your time to Greenwich Mean Time (UTC).
> Because basic LTSP cannot access DNS to get IP addresses,
> we must set any IP addresses directly, including "server"
We probably should add the concept of localtime to LTSP. we could
specify it in the lts.conf file. Shouldn't be too tough.
> [curiously, ntpdate seems to ignore /etc/hosts, going directly to DNS
> servers].
I'm guessing that ntpdate is fine, it's the missing resolver libraries
that are installed as part of the ltsp_local_apps package that you
probably haven't installed.
The libs will be packaged differently in LTSP-4, so that the basic
ltsp_core package contains the right libs for doing dns resolution.
>
> I just tried ntpdate with several internet time servers,
> without adding more files accomodating DNS for LTSP
> and without using ntpd on my "server".
> I tried using the following actual IP addresses
> in the second line below,
> ntpdate chrivh40.cch.com ntp-0.cso.uiuc.edu ntp-1.mcs.anl.gov
> ntpdate 198.147.37.140 130.126.24.53 216.204.156.2 140.221.9.20
> This works!
> One small glitch would be that IP addresses aren't as stable as
> domainnames, so rather than using the suggested 3 domainnames,
> you might use 5 IP addresses.
See my comments above for the DNS problem.
Jim McQuillan
[EMAIL PROTECTED]
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