DNS DHCP and Parent Child domain

[Ihab Abedrabbo]

Hello.
I actually have a multipart question. I am about to
create a Windows 2000 Active Directory domain structure,
and need some general help. I actually need a YES/NO
reply to my questions below!

I will have a FatherDomain with 2 SubDomainss.
FatherDomain.com is the first domain controller of my
FatherDomain.com, while Child1 and Child2 are sub domains
"i.e child domains"

FatherDomain.com (Subnet 10.10.1.x/24)
| |
Child1 Child2
(Subnet 10.10.2.x/24) (Subnet 10.10.3.x/24)

DC01 hosting FatherDomain.com will host my DNS, DHCP, and
WINS. Each domain is physically located on a different
floor (and also different vlan) connected with a
layer3 Cisco router, but they are in the same office, i.e
not geographically distant.

Q1:
Do I have to install DNS on each domain controller in
Child1 and Child2? and Why?

Q2:
If Child1 domain controller is offline for some reason,
would user01 coming from ClientPC.Child1 be authenicated
by FatherDomain without problems? I mean, would
FatherDomain work as an authenticating domain if its child
domain is offilne?

Q3:
If the above answer is YES, would users notice difference
in logon times?

Q4:
Can I use the FatherDomain GPO to propagate to all client
computers in Child1 and Child2, or do I have to deploy
a GPO on each domain?

Q5:
DC01 which is hosting the FatherDomain will act as a DHCP
server, releasing IPs to DHCP clients. How can I tell my
DHCP server to release a specific IP based on where the
DHCP request comes from? I mean, a computer coming from
the 10.10.3.x/24 subnet should get an IP like 10.10.3.21/24
and not 10.10.2.21 or 10.10.1.21

Thank you for your help.
Please contact me on (e-mail address removed)

 

[Ace Fekay [MVP]]

Hello.
I actually have a multipart question. I am about to
create a Windows 2000 Active Directory domain structure,
and need some general help. I actually need a YES/NO
reply to my questions below!

I will have a FatherDomain with 2 SubDomainss.
FatherDomain.com is the first domain controller of my
FatherDomain.com, while Child1 and Child2 are sub domains
"i.e child domains"

FatherDomain.com (Subnet 10.10.1.x/24)
| |
Child1 Child2
(Subnet 10.10.2.x/24) (Subnet 10.10.3.x/24)

DC01 hosting FatherDomain.com will host my DNS, DHCP, and
WINS. Each domain is physically located on a different
floor (and also different vlan) connected with a
layer3 Cisco router, but they are in the same office, i.e
not geographically distant.

Q1:
Do I have to install DNS on each domain controller in
Child1 and Child2? and Why?

You could. Eliminates query traffic across the routers.

Q2:
If Child1 domain controller is offline for some reason,
would user01 coming from ClientPC.Child1 be authenicated
by FatherDomain without problems? I mean, would
FatherDomain work as an authenticating domain if its child
domain is offilne?

No. Different domains, therefore different user accounts.

Q3:
If the above answer is YES, would users notice difference
in logon times?

Non Sequitor...

Q4:
Can I use the FatherDomain GPO to propagate to all client
computers in Child1 and Child2, or do I have to deploy
a GPO on each domain?

GPOs can be applied at Site, Domains or OUs. In your case, you would do it
by OUs in their respective domains only.

Q5:
DC01 which is hosting the FatherDomain will act as a DHCP
server, releasing IPs to DHCP clients. How can I tell my
DHCP server to release a specific IP based on where the
DHCP request comes from? I mean, a computer coming from
the 10.10.3.x/24 subnet should get an IP like 10.10.3.21/24
and not 10.10.2.21 or 10.10.1.21

You would use either mutliple NICs, one for each subnet (that;s the hard
way) or use DHCP Relay Agents.

Thank you for your help.
Please contact me on (e-mail address removed)

Your welcome. I tried to keep it to a simple YES or NO, but based on your
questions, I believed you needed a little understand and short explanation.

--
Regards,
Ace

Please direct all replies to the newsgroup so all can benefit.
This posting is provided "AS IS" with no warranties.

Ace Fekay, MCSE 2000, MCSE+I, MCSA, MCT, MVP
Microsoft Windows MVP - Active Directory