#nmblookup -A abcdel1
If given command list
ABC <1c> .
ABC <1b> . H
That means system abcdel1 is PDC for domain ABC.
In the same way you can find BDC for your domain
#nmblookup -A abcdel2
My server is PDC ?
If suppose you are on a linux system and want to be sure that the computer with name abcdel1 in your PDC ,
#nmblookup -A abcdel1
If given command list
ABC <1c> . H
ABC <1b> . H
That means system abcdel1 is PDC for domain ABC.
In the same way you can find BDC for your domain
#nmblookup -A abcdel2
#nmblookup -A abcdel1
If given command list
ABC <1c> .
ABC <1b> . H
That means system abcdel1 is PDC for domain ABC.
In the same way you can find BDC for your domain
#nmblookup -A abcdel2