[THIN] Re: NT 4 domain controller issue

  • From: "Shaw-Dutton, Andrew - HPS" <andrew@xxxxxxxx>
  • To: "'thin@xxxxxxxxxxxxx'" <thin@xxxxxxxxxxxxx>
  • Date: Wed, 16 Apr 2003 10:21:47 +0100

Hi Mike

As mentioned yesterday need to edit lmhosts file, and ensure that you are
using it for lookups. The following is the complete procedure, you may be
able to omit the first paragraph depending on how your TS is configured for
name resolution.

To force a client to use a specific domain controller we need only do the
following:

Start the registry editor 
Move to
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\NetBT\Parameters 
From the Edit menu select New - DWORD value 
Enter a name of NodeType and press ENTER 
Double click on the new value and set to 4 (this sets the network to an
M-mode/mixed which means it will perform a broadcast before querying name
servers for resolution). By default a system is 1 if no WINS servers are
configured (B-node/broadcase) or 8 if at least one WINS server is configured
(H-node/queries name resolution first then broadcasts) 
Double click on the EnableLMHOSTS value and set to 1. If it does not exist
select New - DWORD value from the Edit menu and enter a name of
EnableLMHOSTS 
Close the registry editor 
Reboot the machine 
The machine is now configured to broadcase for a domain controller on a
local subnet and then query a name server. If no domain controllers are
found on the WINS server, or WINS is not used it will then search the
LMHOSTS file. The next stage is to edit this file.

Check for the LMHOSTS file
C:\>dir %systemroot%\system32\drivers\etc\lmhosts 
If the file does not exist copy the sample host file
C:\>copy %systemroot%\system32\drivers\etc\lmhosts.sam
%systemroot%\system32\drivers\etc\lmhosts
1 file(s) copied. 
Edit the file using edit.exe, don't use notepad.exe
C:\>edit %systemroot%\system32\drivers\etc\lmhosts 
Goto the end of the comments and add a new line of the format
<ip address> <name of DC> #PRE #DOM:<domain name> #<comment>
e.g. 200.200.200.50 titanic #PRE #DOM:savilltech #savilltech domain
controller 
Save the changes to the file and exit edit.exe 
Force the machine to reload the LMHOSTS file (or just reboot)
C:\>NBTSTAT -R
Note: The -R must be in capitals, the command is case sensitive 
Check the cache
C:\>NBTSTAT -c 
At this point the configuration is complete and a reboot is advisable. 

If this fails to work get in touch with your comms team and ask them to add
ip helpers to the router local to your TS.

Thanks
Andrew

-----Original Message-----
From: Lee, David (CITY TREASURY) [mailto:David.Lee@xxxxxxxxxxxxxxx]
Sent: 15 April 2003 16:45
To: 'thin@xxxxxxxxxxxxx'
Subject: [THIN] Re: NT 4 domain controller issue



SET command to configure the %logonserver% variable?

-----Original Message-----
From: Michael Boggan [mailto:MBoggan@xxxxxxxxxxx]
Sent: 15 April 2003 16:26
To: 'THIN'
Subject: [THIN] NT 4 domain controller issue


I have a domain that spans 2 segments connected over the wan.  On one side
is the PDC and a BDC along with a WINS server.  On the other side, there is
a BDC and a WINS server.  On that side there are several WinNT TSE / Citrix
XP servers.  On most of those servers, when a user logs in it uses the BDC
on that side to authenticate and run the login script from, but when users
log into one of the servers, it is using the PDC on the other segment.  This
is causing problems with slow logins and missing drive mappings from the
login script.  Is there any way to tell that server which DC to use?  What
controls that?
 
_________________________________
 
Michael Boggan
Network Engineer/Citrix Admin
Virtual Desktop Inc.
Dallas, Texas
Ph: (972) 960-6400
Fax: (972) 960-6445
email: mboggan@xxxxxxxxxxx
http://www.virtualdesktopinc.com <http://www.virtualdesktopinc.com> 
_________________________________
 


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