samba - Nov 2010 - krb5.conf Second domain controller

Hello

I did net/vampire with success.

1)
I noticed that second domain controller not listening on port 3268. Is 
this normal ?
(
/usr/local/samba/private/dns_update_list  file suggest to have record 
for gc service for second domain controller )

2) Should I add record for dc2 in  /etc/krb5.conf on both servers ?
I suggest
[realms]
  TEST.LOCAL = {
   kdc = dc1.test.local:88
*kdc = dc2.test.local:88*
   admin_server = dc1.test.local:749
*admin_server = dc2.test.local:749*
   default_domain = test.local