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Zone Transfer

Answers

  • Hi,

    A zone transfer is the transfer of an entire zone file from one server to another. For example you can create secondary zone which is a read-only copy of a primary zone. Basically, we can use them to offload some of DNS traffic like queries, from areas in our network that are more heavily used. If your primary zone were to become unavailable, the secondary zone could provide name resolution until the primary zone is restored.

    Insted of replicating/transferring the whole zone you can also create a stub zone which is also a copy of zone and only store the name server and SOA records. They can be used to minimize the network traffic. You should consider using stub zones in multisite scenarios where replication of large zone may be an issue.

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    • Marked as answer by Shimith Wednesday, April 26, 2017 7:16 AM
    Wednesday, April 26, 2017 6:21 AM

All replies

  • Hi,

    A zone transfer is the transfer of an entire zone file from one server to another. For example you can create secondary zone which is a read-only copy of a primary zone. Basically, we can use them to offload some of DNS traffic like queries, from areas in our network that are more heavily used. If your primary zone were to become unavailable, the secondary zone could provide name resolution until the primary zone is restored.

    Insted of replicating/transferring the whole zone you can also create a stub zone which is also a copy of zone and only store the name server and SOA records. They can be used to minimize the network traffic. You should consider using stub zones in multisite scenarios where replication of large zone may be an issue.

    ------------------------------------------------------------------------------------------------------------
    If you found this post helpful, please give it a "Helpful" vote. 
    Please remember to mark the replies as answers if they help.
    (nedimmehic.org)

    • Marked as answer by Shimith Wednesday, April 26, 2017 7:16 AM
    Wednesday, April 26, 2017 6:21 AM
  • Thanks alot Nedim

    Wednesday, April 26, 2017 7:16 AM
  • Hi,

    Copying the DNS database from one server to another is accomplished through a process known as a zone transfer. Zone transfers are required for any non-Active Directory-integrated zone that has more than one name server responsible for the contents of that zone. The mechanism for zone transfers varies, however, depending on the version of DNS. Zone transfers are always pulled by the secondary servers from the primary servers.

    Primary DNS servers can be configured to notify secondary DNS servers of changes to a zone and to begin a zone transfer. They can also be configured to perform a zone transfer on a scheduled basis.

    Hope it helps.




    Wednesday, April 26, 2017 10:21 AM