WHM server migration

achraf benamira

• March 19, 2025 08:34

I have a CentOS 7 dedicated cloud server running WHM 110, and I want to upgrade it to AlmaLinux 9. However, this migration is not supported directly, so I purchased another server to perform the migration of all accounts. The question is: how do I migrate those accounts to the new server with no downtime

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  cPRex Jurassic Moderator

  • March 19, 2025 14:32

  Hey there!  The best way to do that work would be with the Transfer Tool:

  https://docs.cpanel.net/whm/transfers/transfer-tool/

  This allows you to move all the accounts between the two servers with just a few clicks.

  If you plan the DNS changes properly there would be little or no downtime.  I always recommend changing the main TTL in the zone file to 300 a week before the migration, as that will allow future DNS changes to update quickly.

  Alternatively, if all of your domains use the same nameservers and you plan to keep those, you would just need to change the IP address the nameservers point to at the registrar after the migration is complete.  That would allow for zero downtime as the DNS will either point to the old or new system during the few minutes that the nameserver records update.

  Let me know if that helps!

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