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Need to migrate the Cpanel server to a new subnet

Discussion in 'General Discussion' started by ed.kalk, Oct 22, 2008.

  1. ed.kalk

    ed.kalk Well-Known Member

    Jun 19, 2008
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    Minneapolis, MN
    I've already added a second IP to the eth1 interface and the system says that there is a new IP available.

    I'm thinking that the next step is to switch the DNS server IP to the new IP. I'm thinking that the step after that is to switch each domain over to the new IP. I'm thinking that the step after that is to remove the old IP.

    What is the best way to do this? Can it be done with 0 downtime?
    Am I wrong in thinking this whole thing can be done?
    #1 ed.kalk, Oct 22, 2008
    Last edited: Oct 22, 2008
  2. DaveUsedToWorkHere

    DaveUsedToWorkHere Well-Known Member

    Dec 28, 2001
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    You can use the IP Migration Wizard in WHM to accomplish this. It's a two step process to eliminate downtime. In the first part, you add the new IPs and migrate your sites. Then, after DNS propagates with the new IP info, you can complete the process and remove the entries for the old IPs.

    This will only work if you can have all the IPs bound to the server during the transition though. If you have to dump the old IPs, you can migrate but DNS will take a few hours to catch up.

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