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DNS Clustering Advice Requested

Discussion in 'Bind / DNS / Nameserver Issues' started by markb14391, Sep 12, 2008.

  1. markb14391

    markb14391 Well-Known Member

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    Hi All,

    First, best wishes to the cPanel staffers and everyone else affected by Hurricane Ike.

    I'm wondering if people can give me some suggestions on DNS clustering. I am setting up a hosting business with two dedicated servers. Each will be split into VPS for various purposes. On one server, a VPS will host cPanel shared hosting. On the other, a VPS will host cPanel reseller hosting. Each cPanel installation will handle failover e-mail for the other.

    I want the hostnames and nameservers on both servers to be under the same domain. Hostnames are no problem, for example I can set up illinois01.mydomain.com and california01.mydomain.com. But I'm not sure how to set up DNS clustering. I see these options:

    1) Set up two nameservers on each cPanel/WHM installation and cluster with synchronized changes. For example, installation 1 might have ns1.mydomain.com and ns2.mydomain.com...and the other installation would have ns3 and 4.

    2) Set up one or more cPanel/WHM DNS Only installations, then have everything cluster with synchronized changes. Each DNS Only installation would be done in its own VPS, one on each dedicated server.

    3) Maybe there's another way that I haven't thought of.

    Any recommendations would be greatly appreciated. I think my biggest question is whether DNS Only is needed, and what the benefits would be. I do plan to expand the hosting business and add more servers later, in case that influences the decision.

    Thanks and best regards,

    Mark
     
  2. cPanelDavidG

    cPanelDavidG Technical Product Specialist

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    I'm seeing what you describe in option 2 becoming more and more common. The idea behind this setup is you can easily move sites from one server to another without having to have your customers update their nameservers at their registrar. The DNS clustering can be seen as a secondary benefit in such configurations.
     
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