ISPCONFIG MIGRATIO TOOL - Problems getting past SSH login

Discussion in 'Installation/Configuration' started by vestport, Nov 9, 2025.

  1. vestport

    vestport Member

    Migration tool won’t get by SSH login. It gets all the way there and then keeps looping and asking for IP, port22 and password. I can login with the command below and get to a prompt with the line below that it suggests to try. Not sure why it keeps looping in the app. Am I missing another program on the source or target that is preventing migration? It does say 1 key copied when I login with SSH and then to try the line below where I can successfully login to a prompt. Within migration tool however it just keeps looping the login. Not sure what to do or if I am missing something.

    It says to try the following and I can login successfully to a # prompt but migration too keeps looping to login otherwise.
    ssh -p '22' -o 'StrictHostKeyChecking=no' -o 'ConnectTimeout=5' 'root@myIP'


    otherwise migration tool gets most of the way (just to the SSH login) and just looping with:

    “What is the ip for the target web server to connect via SSH?” and back to “What is the ip for the target web server to connect via SSH? Again after providing the correct information.

    Any help appreciated.

    Thanks in advance for any replies!


    Art
     
  2. till

    till Super Moderator Staff Member ISPConfig Developer

    The most likely reason is that your old server is too old so that the SSH daemon on the new system rejects the login by SSH key. You can try this:

    Enable the legacy algorithms in sshd by modifying the /etc/ssh/sshd_config file on the new server, adding the following lines:

    Code:
    HostKeyAlgorithms +ssh-rsa
    PubkeyAcceptedAlgorithms +ssh-rsa
    Then we restarted the SSH service on the new server with:

    Code:
    systemctl restart sshd
     
    ahrasis likes this.
  3. vestport

    vestport Member

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