How to List all Domain Controllers on your Domain

Open the CLI and type to following Window Server 2003 native commands:

DSQUERY Server

Otput Screen:

"CN=testserver,CN=Servers,CN=sydney,CN=Sites,CN=Configuration,DC=test,DC=com,DC=au"

"CN=DC1,CN=Servers,CN=Campbelltown,CN=Sites,CN=Configuration,DC=test,DC=com,DC=au"
"CN=DC2,CN=Servers,CN=Campbelltown,CN=Sites,CN=Configuration,DC=test,DC=com,DC=au"
"CN=SDC1,CN=Servers,CN=City,CN=Sites,CN=Configuration,DC=test,DC=com,DC=au"
"CN=SDC2,CN=Servers,CN=City,CN=Sites,CN=Configuration,DC=test,DC=com,DC=au"

or, if you prefer the host names only then type:

DSQUERY Server -o rdn

Output Screen:
testserver

DC1
DC2
SDC1
SDC2

You can also use the below command on window server 2003:

           nltest /dclist:DomainName

For example:

       nltest /dclist:test.com.au