NTP Time Server

[linkazoid]

Hi,

 

It seems that our time has drifted off to around 5 minutes from our LFGL NTP time server.

 

I don't want to just resync the server with the time server as this will probably screw up the clients. I was thinking to manually adjust our DC time by two minutes each day, and force the PCs to resync. What would be the best way to correct this? We have XP and Win7 Clients.

 

Thanks,

 

Michael

[ChrisH]

Just do it over 2 days in 2 increments the clients will catch up on boot. Have you not got your server to auto sync anyway ?

[linkazoid]

This is what the config from our DC01 shows:

w32tm /query /configuration
[Configuration]

EventLogFlags: 2 (Local)
AnnounceFlags: 5 (Local)
TimeJumpAuditOffset: 28800 (Local)
MinPollInterval: 6 (Local)
MaxPollInterval: 10 (Local)
MaxNegPhaseCorrection: 1800 (Local)
MaxPosPhaseCorrection: 1800 (Local)
MaxAllowedPhaseOffset: 300 (Local)

FrequencyCorrectRate: 4 (Local)
PollAdjustFactor: 5 (Local)
LargePhaseOffset: 50000000 (Local)
SpikeWatchPeriod: 900 (Local)
LocalClockDispersion: 10 (Local)
HoldPeriod: 5 (Local)
PhaseCorrectRate: 7 (Local)
UpdateInterval: 100 (Local)


[TimeProviders]

NtpClient (Local)
DllName: C:\Windows\system32\w32time.dll (Local)
Enabled: 1 (Local)
InputProvider: 1 (Local)
AllowNonstandardModeCombinations: 1 (Local)
ResolvePeerBackoffMinutes: 15 (Local)
ResolvePeerBackoffMaxTimes: 7 (Local)
CompatibilityFlags: 2147483648 (Local)
EventLogFlags: 1 (Local)
LargeSampleSkew: 3 (Local)
SpecialPollInterval: 900 (Local)
Type: NTP (Local)
NtpServer: 0.pool.ntp.org,0x1 (Local)

NtpServer (Local)
DllName: C:\Windows\system32\w32time.dll (Local)
Enabled: 1 (Local)
InputProvider: 0 (Local)
AllowNonstandardModeCombinations: 1 (Local)

VMICTimeProvider (Local)
DllName: C:\Windows\System32\vmictimeprovider.dll (Local)
Enabled: 0 (Local)
InputProvider: 1 (Local)

 

Restarting the client does not adjust the time

[ChrisH]

I wrote my notes here if you wan't to work through it.

[fiza]

Hi,

 

It seems that our time has drifted off to around 5 minutes from our LFGL NTP time server.

 

I don't want to just resync the server with the time server as this will probably screw up the clients. I was thinking to manually adjust our DC time by two minutes each day, and force the PCs to resync. What would be the best way to correct this? We have XP and Win7 Clients.

 

Thanks,

 

Michael

 

what is the address of the NTP time server for LGFL? I want to check how far out we are.

[linkazoid]

what is the address of the NTP time server for LGFL? I want to check how far out we are.

 

Not sure if i'm allowed to publicise it. But you can find it on the following document if you are a NC. https://support.lgfl.org.uk/secure/resources/guides/fetch_secure_doc.ashx?page=ug_NTP-pdf

[fiza]

Not sure if i'm allowed to publicise it. But you can find it on the following document if you are a NC. https://support.lgfl.org.uk/secure/resources/guides/fetch_secure_doc.ashx?page=ug_NTP-pdf

 

Thanks. I am an NC but I couldnt find that user guide. Thanks for the link.