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Rewrite introduction section of User_Manual
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Overview
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=====
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Civetweb is small and easy to use web server. It is self-contained, and does
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not require any external software to run.
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Civetweb is small and easy to use web server.
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It may be embedded into C/C++ host applications or used as a stand-alone
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server. See `Embedding.md` for information on embedding civetweb into
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host applications.
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The stand-alone server is self-contained, and does not require any external
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software to run. Some Windows users may need to install the
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[Visual C++ Redistributable](http://www.microsoft.com/en-us/download/details.aspx?id=30679).
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Installation
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----
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### Some Windows users may be the install the
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[Visual C++ Redistributable for Visual Studio 2012](http://www.microsoft.com/en-us/download/details.aspx?id=30679)
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On Windows, UNIX and Mac, the civetweb stand-alone executable may be started
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from the command line.
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Running `civetweb` in a terminal, optionally followed by configuration parameters
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(`civetweb [OPTIONS]`) or a configuration file name (`civetweb [config_file_name]`),
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starts the web server.
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For UNIX and Mac, civetweb does not detach from the terminal.
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Pressing `Ctrl-C` keys will stop the server.
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On Windows, civetweb iconifies itself to the system tray icon when started.
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Right-click on the icon pops up a menu, where it is possible to stop
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civetweb, or configure it, or install it as Windows service. The easiest way
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to share a folder on Windows is to copy `civetweb.exe` to a folder,
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double-click the exe, and launch a browser at
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civetweb, or configure it, or install it as Windows service.
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When started without options, the server exposes the local directory at
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[http](http://en.wikipedia.org/wiki/Hypertext_Transfer_Protocol) port 8080.
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Thus, the easiest way to share a folder on Windows is to copy `civetweb.exe`
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to this folder, double-click the exe, and launch a browser at
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[http://localhost:8080](http://localhost:8080). Note that 'localhost' should
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be changed to a machine's name if a folder is accessed from other computer.
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On UNIX and Mac, civetweb is a command line utility. Running `civetweb` in
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terminal, optionally followed by configuration parameters
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(`civetweb [OPTIONS]`) or configuration file name
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(`civetweb [config_file_name]`) starts the
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web server. Civetweb does not detach from terminal. Pressing `Ctrl-C` keys
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would stop the server.
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When started, civetweb first searches for the configuration file.
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If configuration file is specified explicitly in the command line, i.e.
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`civetweb path_to_config_file`, then specified configuration file is used.
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Otherwise, civetweb would search for file `civetweb.conf` in the same directory
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where binary is located, and use it. Configuration file can be absent.
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the executable is located, and use it. This configuration file is optional.
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Configuration file is a sequence of lines, each line containing
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command line argument name and it's value. Empty lines, and lines beginning
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with `#`, are ignored. Here is the example of `civetweb.conf` file:
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The configuration file is a sequence of lines, each line containing one
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command line argument name and the corresponding value.
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Empty lines, and lines beginning with `#`, are ignored.
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Here is the example of `civetweb.conf` file:
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document_root c:\www
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listening_ports 8080,8043s
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listening_ports 80,443s
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ssl_certificate c:\civetweb\ssl_cert.pem
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When configuration file is processed, civetweb process command line arguments,
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if they are specified. Command line arguments therefore can override
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configuration file settings. Command line arguments must start with `-`.
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For example, if `civetweb.conf` has line
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`document_root /var/www`, and civetweb has been started as
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`civetweb -document_root /etc`, then `/etc` directory will be served as
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document root, because command line options take priority over
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configuration file. Configuration options section below provide a good
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overview of Civetweb features.
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When a configuration file is used, additional command line arguments may
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override the configuration file settings.
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All command line arguments must start with `-`.
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For example: The above `civetweb.conf` file is used, and civetweb started as
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`civetweb -document_root D:\web`. Then the `D:\web` directory will be served
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as document root, because command line options take priority over the
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configuration file. The configuration options section below provides a good
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overview of the Civetweb features.
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Note that configuration options on the command line must start with `-`,
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but their names are the same as in the config file. All option names are
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