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SSH Tectia 
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    About This Document>>
    Installing SSH Tectia Client >>
    Getting Started >>
    Configuring SSH Tectia Client >>
    Connecting to a Remote Host Computer>>
    Transferring Files>>
    Tunneling Applications>>
    GUI Reference>>
    Troubleshooting >>
    Command-Line Tools >>
        ssh2 >>
            Synopsis
            Options
            ssh2 Return Values
        scp2 >>
        sftp2 >>
        ssh-keygen2 >>
        ssh-cmpclient >>
        ssh-certview >>

ssh2 Return Values

On normal execution, ssh2 exits with the status of the command run. On successful runs this is normally 0 (zero).

If ssh2 encounters an error, you usually see the reason in an error message. However, accommodating for that in, for example, batch files is difficult, so some usual exit values for ssh2 are documented here. Note that the command you have run may also return the same exit values. Unfortunately, little can be done to avoid this, as the exit value space is so small (8 bits).

  • 128 + signal number

    This is returned if ssh2 encounters a fatal signal. For example, 143 would be returned for SIGTERM (signal number 15).

  • 64 + disconnect code

    This is returned on disconnect, clean or otherwise. The disconnect codes are the following:

        host not allowed to connect      1
        protocol error                   2
        key exchange failed              3
        reserved                         4
        MAC error                        5
        compression error                6
        service not available            7
        protocol version not supported   8
        host key not verifiable          9
        connection lost                 10
        by application                  11
        too many connections            12
        auth cancelled by user          13
        no more auth methods available  14
        illegal user name               15
    

    For example, 74 would mean connection lost.

  • -1

    Returned on a call for ssh_fatal().

  • 254

    Usually means that ssh2 failed to exec something (generic catch-all in the libraries for failures to fork or exec).

  • 1

    Generic error.

  • 2

    Connecting to remote host failed.

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