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Subject: Re: [ActiveDir] how long before subnet to site registration affects a client?

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nidhinck

Posts:64

09/01/2010 9:24 PM
Hi Rich, You can also empty the DC Locater cache by typing nltest /dsgetdcomain Name /force. Permanant solution to this problem is to set up Force Rediscovery time in registry for Windows 2003 after applying http://support.microsoft.com/kb/939252 After the installation of this hotfix you have create the Force Rediscovery entry in registry. For more information check out the above hotfix url On Thu, Sep 2, 2010 at 1:17 AM, [Infraspec] Rob Silver <rob@infraspec.net>wrote: > Sorry, I clicked send too fast: > > > > Hi Rich > > > > It’s both replication and caching causing this. The subnet is stored in > AD, not DNS. The device will use its cached DC (the one in Singapore). > You can find this server by typing “set logonserver” or “nltest > /dsGetDc:domainName” at the cmd prompt. The client only flushes this cached > entry after 15 minutes of discovery that the DC is no good. Instead, you > can run “nltest /sc_reset:domainName” to get the client to look for a better > DC. If there are loads of machines, use psexec to do this on all the > machines simultaneously with a text input file. > > > > It uses the DcLocator service to find new DCs. You can repl the new site > by running “repadmin /syncall /P /e” from any server which knows about the > new subnet. Make sure you open the CMD prompt as Administrator before > running this. > > > > Regards, > > * * > > Rob Silver <http://robsilver.org/> > > > > From: activedir-owner@mail.activedir.org [mailto: > activedir-owner@mail.activedir.org] On Behalf Of Milburn, Rich > Sent: 01 September 2010 7:51 PM > To: activedir@mail.activedir.org > Subject: [ActiveDir] how long before subnet to site registration affects > a client? > > > > I found that we had jumpstations that were in a subnet which was not > registered in AD. They were using login servers in Singapore and Indonesia, > and of course any AD tool was pointing across the world also (yes I know how > to change DC but I’d rather not have to go to the trouble). I registered > the subnet in the correct site, but the jumpstation is still connecting to > Singapore. I figured it might take a bit for this to take effect, but I’m > not sure exactly what the backend processing is… does the subnet > registration have to replicate, and if so, to where, before the client will > see it? Is it the local DNS that has to see it? DNS is pointing to local > DC/DNS servers, but for some reason they were sending it (in three instances > I checked) across the world to authenticate. Does the client hold onto > whatever site it got originally referred to, and if so, until when? > > > > This is less operational urgency and more curiosity, perhaps someone else > here might find the information interesting also. > > > > Thanks > > Rich > > > > > -- Regards, Nidhin.CK Chennai Phone No: +91 9884622467

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Forums >ActiveDir Mail List Archive >List Archives > Re: [ActiveDir] how long before subnet to site registration affects a client?

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