Migration and NAT

eitanc

• October 07, 2023 11:37

Hello, I have an existing installation that is connected directly to the Internet. I wish to migrate it to a new server, but soon after the migration I wish to change so the server will be behind a firewall. I saw this NAT article strongly recommend that you only perform these actions on a new installation of cPanel & WHM. Do not attempt a 1:1 NAT configuration on an existing production server. " So I don't know what is the correct order of doing it, like: 1. Install a new server, migrate to it and then fw and NAT? not good, you asked to setup NOT on non-prod 2. Install the new server, NAT it with FW and then Migrate via the FW? 3. Something else? Thanks.

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  kodeslogic

  • October 08, 2023 11:25

  Begin by configuring your 1:1 NAT after the operating system installation, and proceed to install cPanel/WHM then migration.

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  cPRex Jurassic Moderator

  • October 09, 2023 14:53

  Is there a particular reason why you want to put the server behind a firewall after the migration? cPanel and the migration tools will work just fine as long as the appropriate ports are open in the firewall.

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  eitanc

  • October 09, 2023 18:07

  Currently, the "old" production, is directly connected to the Internet with local firewalld. I have to move CP to another server as CP don't support centos anymore. The other thing is that I wish to "outsource" the fw function to a dedicated fw virtual device, for a more convenient management and disable the local firewalld on cpanel. Two "jumps" to do. I prefer, it looks to me more logical, to setup the fw with the new, fresh, CP server, and then do the migration.

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