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Installing additional DNS server

Hi,
wanted to know the best way to install a 2nd dns server to serve as a backup in case our primary dns server were to go down.  If i created another dns server on our network, would it require some type of copy procedure or would the 2nd one need to replicate data from the primary?  thanks
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dankyle67
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dankyle67
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Peter HutchisonSenior Network Systems SpecialistCommented:
if the DNS server is installed on a Domain Controlller, then it will be using an Integrated Active Directory zone and the dns data will be stored and replicated by the DC.

For non-DC DNS servers, you need to configure servers on the Zone Transfers tab on the Forward look zone properties so that you can copy changes between servers.
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dankyle67Author Commented:
so if i have our primary DNS server on a domain controller, and we have let's say 2 other domain controllers on the network, if i turn on dns or enable dns server role on one of them then that domain controller will be able to replicate from the primary automatically?  Are there any additional configuration steps i would need to do once i enable the DNS server on one of the other domain controllers?
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Peter HutchisonSenior Network Systems SpecialistCommented:
Yes, once DNS is installed on a DC, make sure that the Zone is configured as 'Active Directory-Integrated' on the Zone properties.
For Dynamic Updates to the zone, make sure 'Secure only' is selected to prevent zone infections by viruses etc.
On the WINS tab, add any IP addresses of your WINS servers (if any).
For Aging, configure no-frresh/refresh intervals to scavenge and remove old records.
On the DNS Server properties, add any Forwarder addresses to direct internet lookups e.g. ISP DNS servers.
On the Advanced tab, configure  server options and enable scavenging here as well.
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