Time Synchronization

Time Synchronization

Post by William Liveze » Wed, 28 Apr 1999 04:00:00




> I have two time sync issues ...

> 1. How do I configure the Linux box (server on our LAN) to get the time
> from a time server via the Internet?

> 2. How can I get the WinXX machines on the lan to sync to the Linux
> server?

> Before we switched from Windows NT to Linux on the server, we were
> running a freebie applicaiton from ZD (ExactTime) that did a dial-out to

> either the time server in DC or in Boulder, and the WinXX machines used
> the NET TIME command to get correct time from the NT server. The
> long-distance charges were not great, but the dial-outs were a nuisance.

> BTW ... the Linux server is running RH 5.2 (kernel 2.0.36). The network
> is running Samba 2.0.

> Gerald Jensen

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Time Synchronization

Post by Bill Unr » Wed, 28 Apr 1999 04:00:00



Quote:>> I have two time sync issues ...

>> 1. How do I configure the Linux box (server on our LAN) to get the time
>> from a time server via the Internet?

If it connects with a dialup network, get chrony. If it is on an
ethernet to the net, either use chrony or the full xntp. (chrony has the
advantage of looking at your real time clock and fixing it on bootup, so
your clock is close to accurate even if the RTC is way off.
xntp has the advantage of being able to use an onboard atomic clock if
you have one.
(Yes, both are, in the linux tradition, free)

Quote:

>> 2. How can I get the WinXX machines on the lan to sync to the Linux
>> server?

?? There is probably a port of ntp to Win as well.

 
 
 

Time Synchronization

Post by Bob Hau » Wed, 28 Apr 1999 04:00:00




Quote:>>> 2. How can I get the WinXX machines on the lan to sync to the Linux
>>> server?

> ?? There is probably a port of ntp to Win as well.

Put samba on the linux server and then have the windows
machines do "net time \\linux-server-name /set /y"

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Time Synchronization

Post by Villy Kru » Thu, 29 Apr 1999 04:00:00




>Put samba on the linux server and then have the windows
>machines do "net time \\linux-server-name /set /y"

After you enable the samba server in /etc/smb.conf to also function as
a time server.

        time server = yes

Villy

 
 
 

Time Synchronization

Post by Christopher Brow » Fri, 30 Apr 1999 04:00:00


On 28 Apr 1999 14:55:02 +0200, Villy Kruse




>>Put samba on the linux server and then have the windows
>>machines do "net time \\linux-server-name /set /y"

>After you enable the samba server in /etc/smb.conf to also function as
>a time server.

>    time server = yes

You probably want to make sure that the Linux box is being
synchronized with a time server first.

"netdate" may be used to do one-time time syncs; in order to keep the
time on the Linux box more stable, you might want to have the Linux
box run an NTP server, and sync to time servers over the Internet.

See: <http://www.eecis.udel.edu/~ntp>

NTP can function reasonably happily even if the Linux box only has
intermittent connections to the Internet (and thus to the time servers
that it's syncing to).

The NTP software distribution is available in prepackaged form for
various distributions, certainly including Debian and Red Hat...
--
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Java is the most distressing thing to hit computing since MS-DOS."
-- Alan Kay

 
 
 

1. time synchronization ('timed')

I just got my first Linux (Red Hat Intel 4.0 running on a P100)
(extremely cool).  I am connected to the net via an Ethernet card,
and I am trying to set my clock as a slave from another machine on the
net.   I found the 'timed' command, and I also saw a lot of info
related to xntp.   As I don't need super-accuracy, I thought
that using timed would be less painful (enough to keep the clock
in 'shape').   So I tried

But it didn't do any good. It gives me back:

I don't have much of a clue for what I should do to get timed
to do what I want....

 Also, I understand that I should put it somewhere to restart at every
'reboot'. Would that be 'rc.local' ????

Any help will be appreciated.

Thanks,
Carlos

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