Home > Active Directory, Exchange Server 2000, Microsoft > Fun with Exchange 2000 in a legacy domain

Fun with Exchange 2000 in a legacy domain

I had an issue where multiple users were unable to access Outlook.  They were receiving a password prompt upon launching the application.  I needed to find out which Global Catalog server the Exchange server was binding to, which you can do with the trusty old netstat command piped to findstr (which just isn’t a patch on grep, sorry Microsoft):

C:\>netstat -a | findstr ":3268"  
TCP    exch-srv01:1170          DC13.your.domain.com:3268  CLOSE_WAIT 
TCP    exch-srv01:1171          DC13.your.domain.com:3268  ESTABLISHED  
TCP    exch-srv01:1174          DC04.your.domain.com:3268  ESTABLISHED  
TCP    exch-srv01:1175          DC05.your.domain.com:3268  ESTABLISHED  
TCP    exch-srv01:1186          DC05.your.domain.com:3268  CLOSE_WAIT  
TCP    exch-srv01:1187          DC05.your.domain.com:3268  CLOSE_WAIT  
TCP    exch-srv01:1189          DC05.your.domain.com:3268  CLOSE_WAIT  
TCP    exch-srv01:1221          DC04.your.domain.com:3268  ESTABLISHED  
TCP    exch-srv01:1223          DC05.your.domain.com:3268  ESTABLISHED  
TCP    exch-srv01:1237          DC04.your.domain.com:3268  ESTABLISHED  
TCP    exch-srv01:1238          DC05.your.domain.com:3268  ESTABLISHED  
TCP    exch-srv01:1429          DC05.your.domain.com:3268  ESTABLISHED  
TCP    exch-srv01:1431          DC04.your.domain.com:3268  ESTABLISHED  
TCP    exch-srv01:1910          DC04.your.domain.com:3268  ESTABLISHED  
TCP    exch-srv01:1911          DC05.your.domain.com:3268  ESTABLISHED  
TCP    exch-srv01:5452          DC04.your.domain.com:3268  CLOSE_WAIT  
TCP    exch-srv01:10412         DC04.your.domain.com:3268  ESTABLISHED  
TCP    exch-srv01:10414         DC05.your.domain.com:3268  ESTABLISHED


The output of the netstat command was a little worrying as the Exchange server was only set to bind to DC04 & DC05 because DC13 was to be decommissioned as it was very sick.

The resolution was easy enough; you just need to uncheck Automatically discover servers and remove all but one GC in the Directory Access tab of the Exchange servers properties dialog in the System manager to force it to bind to a specific DC.  Once it works add the other GC(s) back in and enable automatically discover again.

NB: This is an excellent troubleshooting method if you’re having authentication problems with Exchange &  don’t know which DC is causing the problem; just connect to each one in turn until you find the culprit.

Bind to specific GC

Now comes the fun of removing the meta-data for DC13 as it wasn’t cleanly removed (DCPROMO failed to de-promote).  :-/

  1. No comments yet.
  1. No trackbacks yet.

Leave a Reply

Fill in your details below or click an icon to log in:

WordPress.com Logo

You are commenting using your WordPress.com account. Log Out / Change )

Twitter picture

You are commenting using your Twitter account. Log Out / Change )

Facebook photo

You are commenting using your Facebook account. Log Out / Change )

Google+ photo

You are commenting using your Google+ account. Log Out / Change )

Connecting to %s

%d bloggers like this: