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DNS Server on a LAN Network

Hey

Thank you for reading this question.

We are busy setting up a Domain at our office. We would like to know if we use the Server as our DNS by default and the Router as a Secondary DNS, will it give a problem or is it posiable to have 2 DNS Servers on a LAN Network?

Thank you
George
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GeorgeFurnell
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GeorgeFurnell
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1 Solution
 
waynej1979Commented:
You can have 2 dns servers on the network, if primary fails secondary should provide dns resolution to clients for internet access.
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liveaspankajCommented:
It will not be router ip. It will be the IP of the server that will host the domain or any other Nameserver in your LAN.

Name server is a server that has information of a domain name and knows where(IP) the domain is hosted on.
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liveaspankajCommented:
there can be any number of DNS
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Chris DentPowerShell DeveloperCommented:
This question is contextual. If you take these two pieces of information:

> We are busy setting up a Domain at our office
> if we use the Server as our DNS by default and the Router as a Secondary DNS

And if you read "Domain" as Active Directory Domain, then the answer to "will this cause a problem" is Yes.

If it were a stand-alone network without any reliance on DNS you could do what you please. As long as DNS, or more specifically internal name resolution, is a critical service (as it is for AD Domains) this option cannot be used.

HTH

Chris
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CGretskiCommented:
It doesn't matter how many DNS servers you configure your client to use ( more than one is better for fault-tolerance ) .

If by Domain you meant Active directory ( as opposed to NT4 domain, or just DNS domain ) then the following caveat applies:
All DNS servers your clients can use must be able to resolve your domain/Active Directory's DNS records.

If for example the router could only query external DNS; no domain records and your client happened to use the router ( maybe the server had been offline previously ) the client wouldn't be able to contact the domain to service logons.
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GeorgeFurnellAuthor Commented:
Hey Chris

Regrading your respons.

Can we use are Server IP and ISP DNS as default DNS for Workstations.

Thanks
Geogre
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Chris DentPowerShell DeveloperCommented:

No, if you have an AD Domain you can only use servers that can answer about the AD Domain. Typically this means only Domain Controllers, but more advanced options include using a Secondary DNS server on another server system.

However, either way it excludes use of the Router, or ISPs DNS servers, in client configuration. People will become unhappy.

Chris
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GeorgeFurnellAuthor Commented:
Hey

Thank you for the Info. Understand the consept better.

Regards
George
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