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Migrate cPanel DNS-Only Nameservers

Discussion in 'Bind/DNS/Nameserver' started by wswd, Jan 11, 2017.

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  1. wswd

    wswd Well-Known Member

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    Hi all,

    We run a 4 nameserver cPanel-only DNS cluster. Those nameservers were installed on a 32-bit OS, which of course affects the updates now.

    What is the best means of reinstalling the nameserver boxes (OS and cPanel) whilst avoiding downtime?

    Thanks!
     
    #1 wswd, Jan 11, 2017
  2. cPanelMichael

    cPanelMichael Forums Analyst
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    Hello,

    Could you verify how the cluster is currently configured? Do you have the ability to obtain an additional server temporarily for migration purposes?

    Thank you.
     
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    #2 cPanelMichael, Jan 12, 2017
  3. wswd

    wswd Well-Known Member

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    Hi Michael,

    I'm not sure what you mean by how it is currently configured. I do have access to temporary servers.

    Thanks!
     
    #3 wswd, Jan 12, 2017
  4. cPanelMichael

    cPanelMichael Forums Analyst
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    Hello,

    For instance, is the cluster configured with direct links? There's a document here that references the configuration types:

    Guide to DNS Cluster Configurations - cPanel Knowledge Base - cPanel Documentation

    Generally, since a cluster affords you redundancy in the event one server is down, you can simply reinstall the OS and cPanel DNS-Only on each server one at a time. Once the DNS-Only installation completes, re-add the the server via WHM Home >> Clusters >> DNS Cluster on each cPanel server that syncs it's zones to the cluster.

    Thank you.
     
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    #4 cPanelMichael, Jan 18, 2017
  5. wswd

    wswd Well-Known Member

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    It's a cPanel DNS cluster, with Write-Only defined on the servers to all 4 nameservers.

    Sounds good, and thanks for the help Michael! Just wanted to make sure I wasn't missing something. :)
     
    #5 wswd, Jan 18, 2017
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  6. cPanelMichael

    cPanelMichael Forums Analyst
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    Hello @wswd,

    You're very welcome! Let us know if you encounter any issues during the migration.

    Thank you.
     
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    #6 cPanelMichael, Jan 19, 2017
  7. wswd

    wswd Well-Known Member

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    The DNS Cluster migration turned into a DNS Cluster**** but a ticket resolved everything. :)
     
    #7 wswd, Jan 20, 2017
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