DNS resolution over multicast in a combined bind/ADS server environment

[John]

Hello,

we intend to install a DNS server under Linux, also because the new
mailserver Zimbra seems to require a local DNS server.
Before we had only a W2K3 based AD domaincontroller which was(is) the
DNS server for 5 WXP clients (with database clients installed)


I heard that it's problematic to have an AD domaincontroller in the
network with the name abcdefg.local (resolution over multicast)
.

Questions:
1.
What is the real problem in having an ADS with the name abcdefg.local
in the same network with a Linux based DNS server?


2.
Could the W2K3 based ADS continue to be the DNS server for the 5 WXP
clients?


Any feedback is appreciated very much. Thank you!


Bill