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DNS Suffix

Dell Poweredge 2600 server
May 26, 2010 at 08:31:25
Specs: Windows Server 2003

Quick question ... easily answered I'm sure by those in the know :-) If I have an AD domain controller set up as a DNS server, member servers (in that AD domain) get their DNS suffix from the domain controller. But what about if I am using the domain controller as a DNS server for other non Windows systems (e.g. Linux, VMware ESX etc) ... do they also pick this information up from the domain controller or do I need to explicitly set it in the various Linux / VMware dialog boxes etc?


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May 27, 2010 at 08:39:12
Add the DHCP component to the DC. As long as the other OS's are set to DHCP they'll pick up there IP address's accordingly. Additionally if they are servers they should be set to static or reserved in DHCP.

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May 27, 2010 at 10:26:36

I don't see how pickup up an IP address via DHCP has anything to do with picking up a DNS suffix?


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May 27, 2010 at 10:34:36
"get their DNS suffix from the domain controller"

Um you wrote that alan_the_geek
How do you think that assignment happens?

In your tcp/ip properties what do you think the tcp/ip dns tab entry "append these suffixes is about?

If your non windows devices are not using dhcp then yes you will have to manually assign the suffix

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May 27, 2010 at 11:15:24

I didn't know how the assignment happens, that's why I asked... since domain members automatically get their DNS suffix from their domain controller, I wanted to know was this also the case for Linux, VMware etc boxes which had a fixed IP address but used the domain controller (DC) for DNS... so to summarise:

(i) If I have a non-Windows server that's using an AD DC for DNS and DHCP then the server will pick up its DNS suffix from the DC.

(ii) If I have a non-Windows server that's using an AD DC for DNS but not for DHCP, then the server DNS suffix will need to be manually assigned.

(iii) Am I correct in saying that the above rules apply for all Windows DNS servers (not just the ones that are set up as domain controllers)?

I was unaware that there was a link between DHCP and DNS in relation to the above, so thanks for clarifying that and apologies if I was excessively agressive in the tone of my previous reply.


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May 27, 2010 at 12:23:23
(i) only if set in dhcp server scope properties
(ii) correct
(iii) correct

DNS server, by itself, does no assigning to any device concerning ip or dns settings. It's sole purpose is to resolve names/ips.

Hope this helps

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