sharing DHCP and DNS

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I have DomainA. Im adding DomainB can DomainB recieve DNS queries from
DomainA DNS server and can DomainA DHCP assign addresses to those in DomainB?
Does this even make sense?
 
andre said:
I have DomainA. Im adding DomainB can DomainB recieve DNS queries from
DomainA DNS server and can DomainA DHCP assign addresses to those in
DomainB? Does this even make sense?
Click to expand...

1. Why two domains? What's your setup/intention?
2. A DHCP server will answer any request for an address on a network...so
you couldn't run two DHCP servers (one dedicated to A, one to B) without
separating those networks with a router or a switch that supports VLANs.
3. Re DNS, if you have two AD domains, they each need their own DNS.
 
Lanwench said:
1. Why two domains? What's your setup/intention?
2. A DHCP server will answer any request for an address on a network...so
you couldn't run two DHCP servers (one dedicated to A, one to B) without
separating those networks with a router or a switch that supports VLANs.
3. Re DNS, if you have two AD domains, they each need their own DNS.


1. Two domains for two separate companies but right now the locate is the same for both companies with a two remote offices that are being setup one for each existing company.
Click to expand...

3. So I will need DNS for both domains. A separate DNS server for both now
if a client from domain a needs to resolve to a client in domain B will that
be a problem considering two different DNS servers and two different Domains?
 
Hi Andre,

You can have the domains aware of one another but you will want to be
careful not to have the domains forwarding to one another with no way to
resolve out.

Plan your forwarding of DNS carefully and define hierarchical forwarding
paths out.

Ad the others have suggested, you need real justification for creation of a
new domain. Remember Child domains have specific forwarding paths using DNS
delegations where parallel namespaces can just be aware of one another.
 
1. Two domains for two separate companies but right now the locate is the
same for both companies with a two remote offices that are being setup one
for each existing company.

Are these two domains in a single forest, or two forests with one domain each?

This makes a difference. If it's just one forest, then there's automatic
transitive trusts established. If there's separate forests, then this isn't
the case, and depending on the version of Windows and the functional level of
AD, the type of trusts available to you will vary slightly...

Also, in a single forest, these domains would share the same configuration
information, i.e. site and subnet information.

3. So I will need DNS for both domains. A separate DNS server for both now
Click to expand...
if a client from domain a needs to resolve to a client in domain B will that
be a problem considering two different DNS servers and two different Domains?

Yes, you need at least two DNS servers. If you've setup AD you already have
this. Now, there are a number of ways to configure cross-domain name
resolution, I tend to use a secondary copy of the opposite domain's DNS
domain in the local domain.

For example, two domains A and B. Two DNS domains a.com and b.com. In
domain A, the DNS server holds a writeable copy of a.com and a secondary copy
of b.com. In domain B, the DNS server holds a writeable copy of b.com and a
secondary copy of a.com.

In addition to this, you also have to set the DNS Suffix Search list on each
client to hold both domain names, e.g. a.com then b.com for DNS clients in
domain A.


--

Paul Williams

http://www.msresource.net/
http://forums.msresource.net/
 
Aplogies for hijacking this post but this may be a relevant question, can a
dhcp server in one forest serve clients in another, e.g domain1.com has a
dhcp server, can this serve domain1.com and domain2.com also?
 
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