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  2. List of FTP server return codes - Wikipedia

    en.wikipedia.org/.../List_of_FTP_server_return_codes

    FTP server return codes always have three digits, and each digit has a special meaning. [1] The first digit denotes whether the response is good, bad or incomplete: Range

  3. errno.h - Wikipedia

    en.wikipedia.org/wiki/Errno.h

    Download QR code; Print/export ... (2), lists all errno.h macros, ... ECONNREFUSED: 111: Connection refused EHOSTDOWN: 112: Host is down

  4. List of HTTP status codes - Wikipedia

    en.wikipedia.org/wiki/List_of_HTTP_status_codes

    This class of status code indicates the client must take additional action to complete the request. Many of these status codes are used in URL redirection. [2] A user agent may carry out the additional action with no user interaction only if the method used in the second request is GET or HEAD. A user agent may automatically redirect a request.

  5. Error code - Wikipedia

    en.wikipedia.org/wiki/Error_code

    Main page; Contents; Current events; Random article; About Wikipedia; Contact us; Help; Learn to edit; Community portal; Recent changes; Upload file

  6. Error correction code - Wikipedia

    en.wikipedia.org/wiki/Error_correction_code

    Classical (algebraic) block codes and convolutional codes are frequently combined in concatenated coding schemes in which a short constraint-length Viterbi-decoded convolutional code does most of the work and a block code (usually Reed–Solomon) with larger symbol size and block length "mops up" any errors made by the convolutional decoder ...

  7. List of SIP response codes - Wikipedia

    en.wikipedia.org/wiki/List_of_SIP_response_codes

    [1]: §21.2.1 202 Accepted Indicates that the request has been accepted for processing, but the processing has not been completed. [4]: §7.3.1 [5] Deprecated. [6]: §8.3.1 [2] 204 No Notification Indicates the request was successful, but the corresponding response will not be received. [7]

  8. HTTP 403 - Wikipedia

    en.wikipedia.org/wiki/HTTP_403

    A 403 status code can occur for the following reasons: [3] Insufficient permissions: The most common reason for a 403 status code is that the user lacks the necessary permissions to access the requested resource.

  9. exec (system call) - Wikipedia

    en.wikipedia.org/wiki/Exec_(system_call)

    In computing, exec is a functionality of an operating system that runs an executable file in the context of an already existing process, replacing the previous executable.. This act is also referred to as an over