Hi,

I have 4 solaris 9(32-Bit) Sparc machines on the same subnet.
All 4 of them have different times( off by 10-15 mins).
I need to synchronize all 4 of them.

Please advise what I should do to sync them to the proper time, and
with each other.

Thanks

0ktalmagik <0ktalmagik@gmail.com> wrote:
> Hi,
> 
> I have 4 solaris 9(32-Bit) Sparc machines on the same subnet.
> All 4 of them have different times( off by 10-15 mins).
> I need to synchronize all 4 of them.
> 
> Please advise what I should do to sync them to the proper time, and
> with each other.

If you have an internet connection
	http://www.pool.ntp.org/

If the servers are isolated and all you want is they all have the same, but
possibly incorrect, time then set one up as a NTP time server and make the
others clients.
	http://www.sun.com/blueprints/0801/NTPpt2.pdf

-- 
Geoff Lane, Airstrip One

0ktalmagik wrote:

> Hi,
> 
> I have 4 solaris 9(32-Bit) Sparc machines on the same subnet.
> All 4 of them have different times( off by 10-15 mins).
> I need to synchronize all 4 of them.
> 
> Please advise what I should do to sync them to the proper time, and
> with each other.
> 
> Thanks
> 

There may be other ways but I believe that the best way is to configure 
NTP on all four machines.  Sun still distributes a truly antique version 
of xntpd (ca. 1999); the current version is 4.2.2 released in 2006! The 
"x" (for experimental) was dropped years ago and it's now called ntpd. 
The old version works but the new one is much improved.

See http://ntp.isc.org/bin/view/Servers/WebHome
where you will find links to lists of publicly available NTP time 
servers, "rules of engagement" and other good and valuable information.

See http://ntp.isc.org/bin/view/Main/SoftwareDownloads
for the source code for the reference implementation.  That's the 
build-it-yourself version.   Prebuilt versions, recent but perhaps not 
absolutely current may be found at http://www.sunfreeware.com/ or at 
http://www.blastwave.org.

Using time servers on the internet, you should be able to keep your 
systems within a few milliseconds of each other and UTC.  If you need 
better accuracy and/or tighter synchronization it's possible to get to 
within a few microseconds using a GPS Timing Receiver as a hardware 
reference clock.

I would suggest configuring one of your four machines as an internal 
server.  It would get time from a selection of internet server.  The 
other three machines would be get time from the internal server.

Comp.protocols.time.ntp is the newsgroup for NTP.