Server Migration DNS Propagation Solution

I have used this technique for a few years now so thought I should post it here as it doesn’t appear to break.

Last done on 2 plesk servers and a naked server (no control panel) this week all using various sub versions of Cent 6.x.

Replace XXX.XXX.XXX.XXX with the destination servers IP address.

WARNING: Use this technique at your own risk. Ensure that you have a way of getting to the server to turn the firewall off.  For example a KVM.

Prior to doing this I create a file called server.html on both servers in the root web with “Old Server” and “New Server” as the contents so I can see what server is being served on the main domain name.

Note I don’t redirect SSH or Plesk as I need to be able to access these per server still.

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