unexpectedly closed issue - SSH

This is a discussion on unexpectedly closed issue - SSH ; Hi all, "Server unexpectedly closed network connection" shown and program exited when we used Putty's psftp(0.6) to put files to remote SSH2 server(GlobalSCAPE Enhanced File Transfer Server (v. 5.1)), the issue always occurs during file transfer. Any fix? Thanks, Alan...

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Thread: unexpectedly closed issue

  1. unexpectedly closed issue

    Hi all,

    "Server unexpectedly closed network connection" shown and program exited
    when we used Putty's psftp(0.6) to put files to remote SSH2
    server(GlobalSCAPE Enhanced File Transfer Server (v. 5.1)), the issue always
    occurs during file transfer.

    Any fix?

    Thanks,
    Alan



  2. Re: unexpectedly closed issue

    newbie wrote:
    > Hi all,
    >
    > "Server unexpectedly closed network connection" shown and program exited
    > when we used Putty's psftp(0.6) to put files to remote SSH2
    > server(GlobalSCAPE Enhanced File Transfer Server (v. 5.1)), the issue always
    > occurs during file transfer.
    >
    > Any fix?
    >
    > Thanks,
    > Alan
    >
    >


    what does the remote server log say?

  3. Re: unexpectedly closed issue

    We have no access on remote server, key authentication is ok.

    psftp -v -2 -4 -i /home/abc/.ssh/private.ppk sftptest1@A.B.C.D
    Server version: SSH-2.0-1.36_sshlib GlobalSCAPE
    We claim version: SSH-2.0-PuTTY_Release_0.60
    Using SSH protocol version 2
    Using Diffie-Hellman with standard group "group1"
    Doing Diffie-Hellman key exchange with hash SHA-1
    Host key fingerprint is:
    ssh-dss 2048 0f:3f:48:d6:37:48:................................ .
    Initialised AES-128 CBC client->server encryption
    Initialised HMAC-SHA1 client->server MAC algorithm
    Initialised AES-128 CBC server->client encryption
    Initialised HMAC-SHA1 server->client MAC algorithm
    Reading private key file "/home/abc/.ssh/private.ppk"
    Pageant is running. Requesting keys.
    Pageant has 0 SSH-2 keys
    Configured key file not in Pageant
    Using username "sftptest1".
    GlobalSCAPE Enhanced File Transfer Server (v. 5.1)Offered public key
    Offer of public key accepted
    Authenticating with public key "imported-openssh-key"
    Access granted
    Opened channel for session
    Started a shell/command
    Connected to A.B.C.D
    Remote working directory is /
    psftp> put t1.mp3.gz
    local:t1.mp3.gz => remote:/t1.mp3.gz
    psftp> Server unexpectedly closed network connection
    Fatal: Server unexpectedly closed network connection
    [abc@my_linux test1]$

    "Joachim Gann"
    ??????:g7ja2h$t25$1@news2.open-news-network.org...
    > newbie wrote:
    >> Hi all,
    >>
    >> "Server unexpectedly closed network connection" shown and program exited
    >> when we used Putty's psftp(0.6) to put files to remote SSH2
    >> server(GlobalSCAPE Enhanced File Transfer Server (v. 5.1)), the issue
    >> always occurs during file transfer.
    >>
    >> Any fix?
    >>
    >> Thanks,
    >> Alan

    >
    > what does the remote server log say?




  4. Re: unexpectedly closed issue

    newbie wrote:
    > We have no access on remote server, key authentication is ok.




    >>> "Server unexpectedly closed network connection" shown and program exited
    >>> when we used Putty's psftp(0.6) to put files to remote SSH2
    >>> server(GlobalSCAPE Enhanced File Transfer Server (v. 5.1)), the issue
    >>> always occurs during file transfer.
    >>>
    >>> Any fix?
    >>>
    >>> Thanks,
    >>> Alan

    >> what does the remote server log say?

    >
    >




    next step is look at the remote server log. Talk to server personnel and
    tell them your client IP. I won't bring up more advice before this has
    been done.

  5. Re: unexpectedly closed issue

    Hi Joachim,

    Ok, thank you.

    Regards,
    Alan
    "Joachim Gann"
    ??????:g7m8ev$h04$1@news2.open-news-network.org...
    > newbie wrote:
    >> We have no access on remote server, key authentication is ok.

    >
    >
    >
    >>>> "Server unexpectedly closed network connection" shown and program
    >>>> exited when we used Putty's psftp(0.6) to put files to remote SSH2
    >>>> server(GlobalSCAPE Enhanced File Transfer Server (v. 5.1)), the issue
    >>>> always occurs during file transfer.
    >>>>
    >>>> Any fix?
    >>>>
    >>>> Thanks,
    >>>> Alan
    >>> what does the remote server log say?

    >>
    >>

    >
    >
    >
    > next step is look at the remote server log. Talk to server personnel and
    > tell them your client IP. I won't bring up more advice before this has
    > been done.




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