[APACHE DOCUMENTATION]

Apache HTTP Server Version 1.3

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  • Module mod_log_common

    This module is contained in the mod_log_common.c file, and is compiled in by default. It provides for logging of the requests made to the server using the Common Logfile Format. This module has been replaced by mod_log_config in Apache 1.2

    Log file format

    The log file contains a separate line for each request. A line is composed of several tokens separated by spaces:
    host ident authuser date request status bytes
    If a token does not have a value then it is represented by a hyphen (-). The meanings and values of these tokens are as follows:
    host
    The fully-qualified domain name of the client, or its IP number if the name is not available.
    ident
    If IdentityCheck is enabled and the client machine runs identd, then this is the identity information reported by the client.
    authuser
    If the request was for a password protected document, then this is the userid used in the request.
    date
    The date and time of the request, in the following format:
    date = [day/month/year:hour:minute:second zone]
    day = 2*digit
    month = 3*letter

    year = 4*digit
    hour = 2*digit
    minute = 2*digit
    second = 2*digit
    zone = (`+' | `-') 4*digit
    request
    The request line from the client, enclosed in double quotes (").
    status
    The three digit status code returned to the client.
    bytes
    The number of bytes in the object returned to the client, not including any headers.

    Directives


    TransferLog

    Syntax: TransferLog file-pipe
    Default: TransferLog logs/transfer_log
    Context: server config, virtual host
    Status: Base
    Module: mod_log_common

    The TransferLog directive sets the name of the file to which the server will log the incoming requests. File-pipe is one of

    A filename
    A filename relative to the ServerRoot.
    `|' followed by a command
    A program to receive the agent log information on its standard input. Note the a new program will not be started for a VirtualHost if it inherits the TransferLog from the main server. See, just as an example, cronolog.
    Security: if a program is used, then it will be run under the user who started httpd. This will be root if the server was started by root; be sure that the program is secure.

    Security: See the security tips document for details on why your security could be compromised if the directory where logfiles are stored is writable by anyone other than the user that starts the server.


    Apache HTTP Server Version 1.3

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