Import the 2048-bit and 1024-bit security keys from the old server on the new server.
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On the new server, select Menu → Configuration → Server Settings.
Click Security Keys from the Setting Categories column, then click Edit.
Click Import.
Import the 2048-bit key.
Click Browse, locate the exported 2048-bit security key .zip file.
Click Open.
Click Next.
Confirm that you have selected the correct key on the Summary tab, and click Save.
Import the 1024-bit key.
Click Browse, locate the exported 1024-bit security key .zip file.
Click Open.
Click Next.
Confirm that you have selected the correct key on the Summary tab, and click Save.