Failed to connect to NoMachine Server with error "Invalid server identification"

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  • #1254
    hchan
    Participant

    I used NoMachine 4 client on windows and client to connect to my NoMachine 4 server.

    However, both give me the following error (when I use NX protocol):

    8040 1292 18:18:17 215.681 ClientSession: Change state to ‘Started’.

    8040 1292 18:18:17 215.681 ClientSession: Started session at 0x2e4f068.

    8040 1292 18:18:17 215.681 ClientSession: Created new view at 0x45b7960 with label ‘ProgressView’ and value ‘0x656dfe’.

    Info: Connection to [my public IP] port 42228 started at 18:18:17 364.689.

    8040 3608 18:18:17 538.699 DaemonGreeter/DaemonGreeter: ERROR! Invalid server identification ‘SSH-2.0-OpenSSH_5.3

    ‘.

    Error: Invalid server identification ‘SSH-2.0-OpenSSH_5.3

    ‘.

    8040 6344 18:18:17 540.700 DaemonClientApplication/DaemonClientApplication: WARNING! Session terminated abnormally.

    Warning: Connection to [my public IP] port 42228 failed at 18:18:17 540.700.

    Warning: Error is 22, ‘Invalid argument’.

    8040 6344 18:18:17 540.700 DaemonClientApplication/DaemonClientApplication: WARNING! Error is 22, ‘Invalid argument’.

    8040 1292 18:18:17 542.700 Connection: Connection at 0x448b160 failed.

    8040 1292 18:18:17 542.700 ClientSession: Runnable at 0x448b160 caused the session at 0x2e4f068 to fail.

    8040 1292 18:18:17 542.700 ClientSession: Failing reason is ‘Could not connect to the server.

    Error is 22: Invalid argument’.

    ==================================================

    I tried to ssh to [my public IP]:42228, and my router did let me ssh into my Linux box.  Hence, I am sure the port forwarding is working.

    Any idea?

    #1278
    Britgirl
    Keymaster

    Check that you have set up your forwarding to port 4000. If you are connecting via NX, NXD listens on the default port 4000.

    #1564
    hchan
    Participant

    That explains.

    Thanks!

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