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Adjusting the time on servers

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Are there any issues that I need to keep in mind when adjusting the time on a LAN? I have W2K and running active directory. Do I need to down the server for this?

Thank you.

11 replies

by s.c.

Keep in mind that W2K may block access to shared resources if the server and the clients time are out of synch. To my knowledge the server does not have to be down.

by mallardtooxx

no the server can be up but you have to bear in mind that there may be outages...it depends on your software. If you have time critical information, and who dosen't, then you may want to make sure you sync your work stations too

by johngreer

Here's what I've done:

1) Run TIMERC3 on the server (at boot or even better every 30 minutes).

This program is free and will sync the clock with an atomic clock of your choice, but doesn't seem to exist in downloadable form anywhere, but I didfind similar programs at
http://www.freewarepub.net/Time_Clients2.htm

2) run NET TIME /YES on each workstation (at boot or even better every 30 minutes).

This command will sync the workstation clock with the server.

by kennethaj

lookup the following MS Technet articles:
216734 - How to configure an authoritative time server in win2k.
AND
120944 - Using net time for workstations and servers

Here is one possible configuration to consider.
First, configure the DC:
Fromthe command line at the DC, type (without quotes):
"net time /setsntp:ntp2.usno.navy.mil"
this will tell the server which time server to sync with, in this case it would be naval observatory time servers, then:
stop the windows time service and type the following at the command line:
"w32tm /set"
this sets the time, however, you may have to reboot.
restart the windows time service.

at the workstation, follow the above instructions substituting the navy server with your domain controller.

by ewgny

You do not have to sync your win2k workstations, they sync as part of kerberos authentication. Your First Domain controller holds all of the operation master roles. The PDC emulator Operation Master handles time. I use a simple freeware program SNTPClent v1.8 it runs as a service and you enter timeserver and the time interval you want it to sync. If you want I will e-Mail it to you. My Alias is my e-mail. Just put SNTP Client in the subject.

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