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Second Domain controller for a domain, what is the DNS IP it should be pointing to?
I already have a windows 2003 domain controller, and I want to install a second domain controller,
One things that making me confuse and do not understand is that for the second domain controller 's NIC card,
what is the DNS setting I should place.
First DC :
IP : 192.168.45.100 /24
Gateway : 192.168.45.254 /24
DNS 1 : 192.168.45.100
DNS 2 : 192.168.45.200
Second DC :
IP : 192.168.45.200 /24
gaeway : 192.168.45.254 /24
DNS 1 : <not sure > ?
DNS 2 : <not sure> ?
Actually I am trying to fulfil the following conduction, but I trying to read about notes, but not enable to find the right
explanation and how it suppose to be .
1. Such that, if there is a power failure in First DC, my workstations will able to solve DNS request from Second DC.
2. Such that, I add a new DNS entry in Second DC, it will replicate over to First DC.
Adding new DNS entry in first DC, it will replicate over to Second DC.
I had read technotes from microsoft technet, and osme related website, but none of then, I can find exmaples or sample, that explain by steps that what should I place in the DNS1 and DNS2 of my Second DC
Thank you
One things that making me confuse and do not understand is that for the second domain controller 's NIC card,
what is the DNS setting I should place.
First DC :
IP : 192.168.45.100 /24
Gateway : 192.168.45.254 /24
DNS 1 : 192.168.45.100
DNS 2 : 192.168.45.200
Second DC :
IP : 192.168.45.200 /24
gaeway : 192.168.45.254 /24
DNS 1 : <not sure > ?
DNS 2 : <not sure> ?
Actually I am trying to fulfil the following conduction, but I trying to read about notes, but not enable to find the right
explanation and how it suppose to be .
1. Such that, if there is a power failure in First DC, my workstations will able to solve DNS request from Second DC.
2. Such that, I add a new DNS entry in Second DC, it will replicate over to First DC.
Adding new DNS entry in first DC, it will replicate over to Second DC.
I had read technotes from microsoft technet, and osme related website, but none of then, I can find exmaples or sample, that explain by steps that what should I place in the DNS1 and DNS2 of my Second DC
Thank you
ASKER
Hi,
But if I DNS 1 were to set to .100 , which is pointing to my FirstDC, and if my FirstDC gones down,
will my SecondDC cannot do not have the information for the domain??
But if I DNS 1 were to set to .100 , which is pointing to my FirstDC, and if my FirstDC gones down,
will my SecondDC cannot do not have the information for the domain??
Sure it will, it will use it's Alternate DNS in the TCP/IP Configuration - which is itself.
Remember that the Zone should be set to AD Integrated, once that's set that's how it gets all the details it needs - everything is just replicated in the same way as your user and computer accounts are.
There's nothing to stop you swapping the DNS order on the second DC if you prefer though - it should be set as above at least until it's up and running as a DC though.
Chris
Oh and just to clarify - If a zone is stored in Active Directory then exactly the same information is available to any Domain Controller in AD. Any changes made on any DC in your domain will be replicated (via AD) to every other DC.
Chris
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ASKER
Thanks for your useful and detail advise. it works.
I setup as recommended for testing, and Down the First DC for 2 days.
Second DC take over the role.
<completed>
I setup as recommended for testing, and Down the First DC for 2 days.
Second DC take over the role.
<completed>
I recommend you do this (and the same setup applies to your client PCs as well, is that enough to cover 1?):
Second DC :
IP : 192.168.45.200 /24
gaeway : 192.168.45.254 /24
DNS 1 : 192.168.45.100
DNS 2 : 192.168.45.200
Inside your DNS Server itself you should ensure that the Zone Type is set to Active Directory Integrated. Since you have a 2003 Domain you should also set it so it Replicates to All Domain Controllers in the Domain. These two steps will ensure that both your DNS servers have the same set of information for your network clients and covers number 2.
HTH
Chris