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Your local ecflow_ui cannot directly access ecflow servers running at the Centre. Instead, you will connect ecflow_ui to your local SSH port forwarding session. Open ecflow_ui connection settings and ; make sure to use "localhost" in the "Host" fields, not the actual ECMWF hostnames. The local SSH session will securely forward your connections to the remote SSH server running inside ECMWF on machine1 and from there to the Centre's ecFlow servers.
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