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Time Synchronizing

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Hello,
We have implemented the new Novell5.1 on IBM box. I noticed that at the end of week the time is off by 20 mins. What's the best way to synchronize the time with a reliable source?
Any ideas?
Thanx

13 replies

by jimbb

If you want to use an external source, first of all your server should be a Reference server, not a Single reference (which is the default). Single reference servers ignore anything, and presume they are the only ones who are right.
Second, you can use a receiver for an atomic clock (heaps of manufacturers), which usually is an antenna you connect to a serial port, combined with an NLM you load that sets the clock.
Careful: can your server receive radiowaves where it is installed? Some serverrooms are pretty shielded...
Or, you can use NTP (Network Time Protocol). This way you check a time-source via IP. Again, plenty of servers available worldwide - any search-engine can help you find some. Add the IP of the servers to your "Configured Sources", using the xxx.xxx.xxx.xxx:123 format. You can add several addresses, separated by a semicolon. Of course, to be able to use this, you need a permanent internet connection, and port 123 should not be blocked on any router or firewallbetween you and the internet.

By the way, if time is off, you could have some systemboard-problem. Empty battery is the most innocent cause, but an incompatible board may also be the problem... Maybe a simple BIOS-upgrade solves things too.

Jim

by jason_foshee

I had the same problem on my NW5.0 server only after I installed SP1 thru SP6. There is a TID on Novell's site that addresses what is actually happening. Some like to have the server time set to the bosses time... but, it loses time... This tid explained how to set it up so that it didn't lose the hardware clock. Basically you had to set it to reference, and use ntp set to poll 127.0.0.1 for a loop back to the server or the server's actual ip address. There is more detail in the TID which is 10023130. This is only if you want to use the hardware clock.

by wcraigmiles

It may not be that you need to synch with a reliable source. There have been several instances where loaded modules were the cause and having a reliable source didn't help. The ide* ham and dsk series were sometime offenders as well as the idecdrom modules. So when you do go to support.novell.com and search the knowledgebase be sure to look at those itenms relating to modules. From first glance it may appear they do not apply, but click on them and see if the module they are talking about is one you have loaded.

So you may have done everything correctly and somehow the vendor still bit you. These are the types of problems where we earn our pay.

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