619 lines
17 KiB
Plaintext
619 lines
17 KiB
Plaintext
<html>
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<head>
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<title>
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September 20, 2010 BOZOHTTPD 8 BOZOS
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</title>
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<style type="text/css">
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</style>
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</head>
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<body bgcolor="#FFFFFF" text="#000000">
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<h3 id="NAME">
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NAME
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</h3>
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<b>bozohttpd</b>
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- hyper text transfer protocol version 1.1 daemon
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<h3 id="SYNOPSIS">
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SYNOPSIS
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</h3>
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<b>bozohttpd</b>
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[<b>-</b><b>HVXbefnrus</b>]
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[<b>-</b><b>C</b><i></i><i> suffix</i><i> cgihandler</i>]
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[<b>-</b><b>I</b><i></i><i> port</i>]
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[<b>-</b><b>M</b><i></i><i> suffix</i><i> type</i><i> encoding</i><i> encoding11</i>]
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[<b>-</b><b>S</b><i></i><i> server_software</i>]
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[<b>-</b><b>c</b><i></i><i> cgibin</i>]
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[<b>-</b><b>i</b><i></i><i> address</i>]
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[<b>-</b><b>p</b><i></i><i> pubdir</i>]
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[<b>-</b><b>t</b><i></i><i> chrootdir</i>]
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[<b>-</b><b>v</b><i></i><i> virtualroot</i>]
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[<b>-</b><b>x</b><i></i><i> index</i>]
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[<b>-</b><b>Z</b><i></i><i> cert</i><i> privkey</i>]
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<i></i><i>slashdir</i>
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[<i></i><i>myname</i>]
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<h3 id="DESCRIPTION">
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DESCRIPTION
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</h3>
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The
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<b>bozohttpd</b>
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program reads a
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<em></em><em>HTTP</em>
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request from the standard input, and sends a reply to the standard output.
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Besides ~user translation and virtual hosting support (see below), all file
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requests are from
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<i></i><i>slashdir</i>
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directory.
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The server uses
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<i></i><i>myname</i>
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as its name, which defaults to the local hostname, obtained from
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<a href="../html3/gethostname.html">gethostname(3)</a>
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(but see the
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<b>-</b><b>v</b>
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option for virtual hosting.)
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<b>bozohttpd</b>
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writes logs to
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<a href="../html3/syslog.html">syslog(3)</a>
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using the ftp facaility (but see the
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<b>-</b><b>s</b>
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option for testing.)
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<b>bozohttpd</b>
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is designed to be small, simple and relatively featureless,
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hopefully increasing its security.
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<h4 id="OPTIONS">
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OPTIONS
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</h4>
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The following options are available:
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<dl compact>
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<p><dt><b>-</b><b>b</b><dd>
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This option enables daemon mode, where
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<b>bozohttpd</b>
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detaches from the current terminal, running in the background and
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servicing HTTP requests.
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<p><dt><b>-</b><b>C</b><i></i><i> suffix</i><i> cgihandler</i><dd>
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This option adds a new CGI handler program for a particular file type.
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The
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<i></i><i>suffix</i>
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should be any normal file suffix, and the
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<i></i><i>cgihandler</i>
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should be a full path to an interpreter.
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This option is the only way to enable CGI programs that exist
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outside of the cgibin directory to be executed.
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Multiple
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<b>-</b><b>C</b>
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options may be passed.
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<p><dt><b>-</b><b>c</b><i></i><i> cgibin</i><dd>
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This option enables the CGI/1.1 interface.
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The
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<i></i><i>cgibin</i>
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directory is expected to contain the CGI programs to be used.
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<b>bozohttpd</b>
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looks for URL's in the form of
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<em></em><em>/cgi-bin/<scriptname></em>
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where
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<scriptname>
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is a valid CGI program in the
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<i></i><i>cgibin</i>
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directory.
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In other words, all CGI URL's must begin with
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<em></em><em>/cgi-bin/</em>.
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Note that the CGI/1.1 interface is not available with
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<em></em><em>~user</em>
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translation.
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<p><dt><b>-</b><b>e</b><dd>
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This option causes
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<b>bozohttpd</b>
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to not clear the environment when used with either the
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<b>-</b><b>t</b>
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or
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<b>-</b><b>U</b>
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options.
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<p><dt><b>-</b><b>f</b><dd>
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This option stops the
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<b>-</b><b>b</b>
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flag from
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<b>bozohttpd</b>
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detaching from the tty and going into the background.
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<p><dt><b>-</b><b>H</b><dd>
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This option causes directory index mode to hide files and directories
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that start with a period, except for
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<code></code><code>..</code>.
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Also see
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<b>-</b><b>X</b>.
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<p><dt><b>-</b><b>I</b><i></i><i> port</i><dd>
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This option is only valid with the
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<b>-</b><b>b</b>
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option.
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It causes
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<i></i><i>port</i>
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to use used as the port to bind daemon mode.
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The default is the
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``http''
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port.
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<p><dt><b>-</b><b>i</b><i></i><i> address</i><dd>
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This option is only valid with the
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<b>-</b><b>b</b>
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option.
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It causes
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<i></i><i>address</i>
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to use used as the address to bind daemon mode.
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If otherwise unspecified, the address used to bind is derived from the
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<i></i><i>myname</i>,
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which defaults to the name returned by
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<a href="../html3/gethostname.html">gethostname(3)</a>.
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Only the last
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<b>-</b><b>i</b>
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option is used.
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<p><dt><b>-</b><b>M</b><i></i><i> suffix</i><i> type</i><i> encoding</i><i> encoding11</i><dd>
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This option adds a new entry to the table that converts file suffixes to
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content type and encoding.
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This option takes four additional arguments containing
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the file prefix, its
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``Content-Type'',
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``Content-Encoding'',
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and
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``Content-Encoding''
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for HTTP/1.1 connections, respectively.
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If any of these are a single dash
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(``-''),
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the empty string is used instead.
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Multiple
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<b>-</b><b>M</b>
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options may be passed.
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<p><dt><b>-</b><b>n</b><dd>
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This option stops
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<b>bozohttpd</b>
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from doing IP address to name resolution of hosts for setting the
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<code></code><code>REMOTE_HOST</code>
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variable before running a CGI program.
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This option has no effect without the
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<b>-</b><b>c</b>
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option.
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<p><dt><b>-</b><b>p</b><i></i><i> pubdir</i><dd>
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This option changes the default user directory for
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<em></em><em>/~user/</em>
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translations from
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``public_html''
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to
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<i></i><i>pubdir</i>.
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<p><dt><b>-</b><b>r</b><dd>
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This option forces pages besides the
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``index.html''
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(see the
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<b>-</b><b>X</b>
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option) page to require that the Referrer: header be present and
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refer to this web server, otherwise a redirect to the
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``index.html''
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page will be returned instead.
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<p><dt><b>-</b><b>S</b><i></i><i> server_software</i><dd>
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This option sets the internal server version to
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<i></i><i>server_software</i>.
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<p><dt><b>-</b><b>s</b><dd>
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This option forces logging to be set to stderr always.
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<p><dt><b>-</b><b>t</b><i></i><i> chrootdir</i><dd>
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When this option is used,
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<b>bozohttpd</b>
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will chroot to the specified directory
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before answering requests.
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Every other path should be specified relative
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to the new root, if this option is used.
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Note that the current environment
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is normally replaced with an empty environment with this option, unless the
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<b>-</b><b>e</b>
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option is also used.
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<p><dt><b>-</b><b>U</b><i></i><i> username</i><dd>
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This option causes
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<b>bozohttpd</b>
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to switch to the user and the groups of
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<i></i><i>username</i>
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after initialization.
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This option, like
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<b>-</b><b>t</b>
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above, causes
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<b>bozohttpd</b>
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to clear the environment unless the
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<b>-</b><b>e</b>
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option is given.
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<p><dt><b>-</b><b>u</b><dd>
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This option enables the transformation of Uniform Resource Locators of
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the form
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<em></em><em>/~user/</em>
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into the the directory
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<code></code><code>~user/public_html</code>
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(but see the
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<b>-</b><b>p</b>
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option above).
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<p><dt><b>-</b><b>V</b><dd>
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This option sets the default virtual host directory to
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<i></i><i>slashdir</i>.
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If no directory exists in
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<i></i><i>virtualroot</i>
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for the request, then
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<i></i><i>slashdir</i>
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will be used.
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The default behaviour is to return 404 (Not Found.)
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<p><dt><b>-</b><b>v</b><i></i><i> virtualroot</i><dd>
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This option enables virtual hosting support.
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Directories in
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<i></i><i>virtualroot</i>
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will be searched for a matching virtual host name, when parsing
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the HTML request.
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If a matching name is found, it will be used
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as both the server's real name,
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[<i></i><i>myname</i>],
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and as the
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<i></i><i>slashdir</i>.
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See the
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<a href="#EXAMPLES">EXAMPLES</a>
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section for an example of using this option.
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<p><dt><b>-</b><b>X</b><dd>
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This option enables directory indexing.
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A directory index will be generated only when the default file (i.e.
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<code></code><code>index.html</code>
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normally) is not present.
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<p><dt><b>-</b><b>x</b><i></i><i> index</i><dd>
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This option changes the default file read for directories from
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``index.html''
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to
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<i></i><i>index</i>.
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<p><dt><b>-</b><b>Z</b><i></i><i> certificate_path</i><i> privatekey_path</i><dd>
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This option sets the path to the server certificate file and the private key file
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in pem format.
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It also causes
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<b>bozohttpd</b>
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to start SSL mode.
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</dl>
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<p>
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Note that in
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<b>bozohttpd</b>
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versions 20031005 and prior that supported the
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<b>-</b><b>C</b>
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and
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<b>-</b><b>M</b>
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options, they took a single space-separated argument that was parsed.
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since version 20040828, they take multiple options (2 in the case of
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<b>-</b><b>C</b>
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and 4 in the case of
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<b>-</b><b>M</b>.)
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<h4 id="INETD CONFIGURATION">
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INETD CONFIGURATION
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</h4>
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As
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<b>bozohttpd</b>
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uses
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<a href="../html8/inetd.html">inetd(8)</a>
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by default to process incoming TCP connections for HTTP requests
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(but see the
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<b>-</b><b>b</b>
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option),
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<b>bozohttpd</b>
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has little internal networking knowledge.
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(Indeed, you can run it on the command line with little change of functionality.)
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A typical
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<a href="../html5/inetd.conf.html">inetd.conf(5)</a>
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entry would be:
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<code>
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<pre>
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http stream tcp nowait:600 httpd /usr/pkg/libexec/bozohttpd bozohttpd /var/www
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http stream tcp6 nowait:600 httpd /usr/pkg/libexec/bozohttpd bozohttpd /var/www
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</pre>
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</code>
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<p>
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This would serve web pages from
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<code></code><code>/var/www</code>
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on both IPv4 and IPv6 ports.
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The
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<em></em><em>:600</em>
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changes the
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requests per minute to 600, up from the
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<a href="../html8/inetd.html">inetd(8)</a>
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default of 40.
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<p>
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Using the
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NetBSD
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<a href="../html8/inetd.html">inetd(8)</a>,
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you can provide multiple IP-address based HTTP servers by having multiple
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listening ports with different configurations.
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<h4 id="NOTES">
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NOTES
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</h4>
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This server supports the
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<em></em><em>HTTP/0.9</em>,
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<em></em><em>HTTP/1.0</em>,
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and
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<em></em><em>HTTP/1.1</em>
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standards.
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Support for these protocols is very minimal and many optional features are
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not supported.
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<p>
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<b>bozohttpd</b>
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can be compiled without CGI support (NO_CGIBIN_SUPPORT), user
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transformations (NO_USER_SUPPORT), directory index support (NO_DIRINDEX_SUPPORT),
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daemon mode support (NO_DAEMON_MODE), and dynamic MIME content
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(NO_DYNAMIC_CONTENT), and SSL support (NO_SSL_SUPPORT) by defining the listed
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macros when building
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<b>.</b>
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<h4 id="HTTP BASIC AUTHORISATION">
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HTTP BASIC AUTHORISATION
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</h4>
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<b>bozohttpd</b>
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has support for HTTP Basic Authorisation.
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If a file named
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<code></code><code>.htpasswd</code>
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exists in the directory of the current request,
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<b>bozohttpd</b>
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will restrict access to documents in that directory
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using the RFC 2617 HTTP
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``Basic''
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authentication scheme.
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<p>
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Note:
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This does not recursively protect any sub-directories.
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<p>
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The
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<code></code><code>.htpasswd</code>
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file contains lines delimited with a colon containing
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usernames and passwords hashed with
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<a href="../html3/crypt.html">crypt(3)</a>,
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for example:
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<code>
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<pre>
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heather:$1$pZWI4tH/$DzDPl63i6VvVRv2lJNV7k1
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jeremy:A.xewbx2DpQ8I
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</pre>
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</code>
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<p>
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On
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NetBSD,
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the
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<a href="../html1/pwhash.html">pwhash(1)</a>
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utility may be used to generate hashed passwords.
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<p>
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While
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<b>bozohttpd</b>
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distributed with
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NetBSD
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has support for HTTP Basic Authorisation enabled by default,
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in the portable distribution it is excluded.
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Compile
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<b>bozohttpd</b>
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with
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``-DDO_HTPASSWD''
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on the compiler command line to enable this support.
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It may require linking with the crypt library, using
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``-lcrypt''.
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<h4 id="SSL SUPPORT">
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SSL SUPPORT
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</h4>
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<b>bozohttpd</b>
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has support for SSLv2, SSLv3, and TLSv1 protocols that is included by
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default.
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It requires linking with the crypto and ssl library, using
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``-lcrypto -lssl''.
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To disable SSL SUPPORT compile
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<b>bozohttpd</b>
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with
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``-DNO_SSL_SUPPORT''
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on the compiler command line.
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<h3 id="FILES">
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FILES
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</h3>
|
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<b>bozohttpd</b>
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looks for a couple of special files in directories that allow certain features
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to be provided on a per-directory basis.
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In addition to the
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<code></code><code>.htpasswd</code>
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used by HTTP basic authorisation,
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if a
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<code></code><code>.bzdirect</code>
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file is found (contents are irrelevant)
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<b>bozohttpd</b>
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will allow direct access even with the
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<b>-</b><b>r</b>
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option.
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If a
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<code></code><code>.bzredirect</code>
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symbolic link is found,
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<b>bozohttpd</b>
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will perform a smart redirect to the target of this symlink.
|
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The target is assumed to live on the same server.
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If a
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<code></code><code>.bzabsredirect</code>
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symbolic link is found,
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<b>bozohttpd</b>
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will redirect to the absolute url pointed to by this symlink.
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This is useful to redirect to different servers.
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<h3 id="EXAMPLES">
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EXAMPLES
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</h3>
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To configure set of virtual hosts, one would use an
|
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<a href="../html5/inetd.conf.html">inetd.conf(5)</a>
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entry like:
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<code>
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<pre>
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http stream tcp nowait:600 httpd /usr/pkg/libexec/bozohttpd bozohttpd -v /var/vroot /var/www
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</pre>
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</code>
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<p>
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and inside
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<code></code><code>/var/vroot</code>
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create a directory (or a symlink to a directory) with the same name as
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the virtual host, for each virtual host.
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Lookups for these names are done in a case-insensitive manner.
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<p>
|
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To use
|
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<b>bozohttpd</b>
|
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with PHP, one must use the
|
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<b>-</b><b>C</b>
|
|
option to specify a CGI handler for a particular file type.
|
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Typically this, this will be like:
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<code>
|
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<pre>
|
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bozohttpd -C .php /usr/pkg/bin/php /var/www
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</pre>
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</code>
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<h3 id="SEE ALSO">
|
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SEE ALSO
|
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</h3>
|
|
<a href="../html5/inetd.conf.html">inetd.conf(5)</a>,
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<a href="../html8/inetd.html">inetd(8)</a>
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<h3 id="HISTORY">
|
|
HISTORY
|
|
</h3>
|
|
The
|
|
<b>bozohttpd</b>
|
|
program was first written in perl, based on another perl http server
|
|
called
|
|
``tinyhttpd''.
|
|
It was then rewritten from scratch in perl, and then once again in C.
|
|
The focus has always been simplicity and security, with minimal features
|
|
and regular code audits.
|
|
This manual documents
|
|
<b>bozohttpd</b>
|
|
version 20100920.
|
|
<h3 id="AUTHORS">
|
|
AUTHORS
|
|
</h3>
|
|
<b>bozohttpd</b>
|
|
was written by Matthew R. Green
|
|
<mrg@eterna.com.au>.
|
|
<p>
|
|
The large list of contributors includes:
|
|
<dl>
|
|
<p><dd>-
|
|
Arnaud Lacombe
|
|
<alc@netbsd.org>
|
|
provided some clean up for memory leaks
|
|
<p><dd>-
|
|
Christoph Badura
|
|
<bad@bsd.de>
|
|
provided Range: header support
|
|
<p><dd>-
|
|
Sean Boudreau
|
|
<seanb@NetBSD.org>
|
|
provided an security fix for virtual hosting
|
|
<p><dd>-
|
|
Julian Coleman
|
|
<jdc@coris.org.uk>
|
|
provided an IPv6 bugfix
|
|
<p><dd>-
|
|
Chuck Cranor
|
|
<chuck@research.att.com>
|
|
provided cgi-bin support fixes, and more
|
|
<p><dd>-
|
|
DEGROOTE Arnaud
|
|
<degroote@netbsd.org>
|
|
provided a fix for daemon mode
|
|
<p><dd>-
|
|
Andrew Doran
|
|
<ad@netbsd.org>
|
|
provided directory indexing support
|
|
<p><dd>-
|
|
Per Ekman
|
|
<pek@pdc.kth.se>
|
|
provided a fix for a minor (non-security) buffer overflow condition
|
|
<p><dd>-
|
|
Alistair G. Crooks
|
|
<agc@netbsd.org>
|
|
cleaned up many internal interfaces, made bozohttpd linkable as a
|
|
library and provided the lua binding.
|
|
<p><dd>-
|
|
Jun-ichiro itojun Hagino, KAME
|
|
<itojun@iijlab.net>
|
|
provided initial IPv6 support
|
|
<p><dd>-
|
|
Martin Husemann
|
|
<martin@netbsd.org>
|
|
provided .bzabsredirect support
|
|
<p><dd>-
|
|
Arto Huusko
|
|
<arto.huusko@pp2.inet.fi>
|
|
provided fixes cgi-bin
|
|
<p><dd>-
|
|
Roland Illig
|
|
<roland.illig@gmx.de>
|
|
provided some off-by-one fixes
|
|
<p><dd>-
|
|
Zak Johnson
|
|
<zakj@nox.cx>
|
|
provided cgi-bin enhancements
|
|
<p><dd>-
|
|
Nicolas Jombart
|
|
<ecu@ipv42.net>
|
|
provided fixes for HTTP basic authorisation support
|
|
<p><dd>-
|
|
Thomas Klausner
|
|
<wiz@danbala.ifoer.tuwien.ac.at>
|
|
provided many fixes and enhancements for the man page
|
|
<p><dd>-
|
|
Johnny Lam
|
|
<jlam@netbsd.org>
|
|
provided man page fixes
|
|
<p><dd>-
|
|
Luke Mewburn
|
|
<lukem@netbsd.org>
|
|
provided many various fixes, including cgi-bin fixes and enhancements,
|
|
HTTP basic authorisation support and much code clean up
|
|
<p><dd>-
|
|
Jeremy C. Reed
|
|
<reed@netbsd.org>
|
|
provided several clean up fixes, and man page updates
|
|
<p><dd>-
|
|
Scott Reynolds
|
|
<scottr@netbsd.org>
|
|
provided various fixes
|
|
<p><dd>-
|
|
Tyler Retzlaff
|
|
<rtr@eterna.com.au>
|
|
provided SSL support, cgi-bin fixes and much other random other stuff
|
|
<p><dd>-
|
|
rudolf
|
|
<netbsd@eq.cz>
|
|
provided minor compile fixes and a CGI content map fix
|
|
<p><dd>-
|
|
Steve Rumble
|
|
<rumble@ephemeral.org>
|
|
provided the
|
|
<b>-</b><b>V</b>
|
|
option.
|
|
<p><dd>-
|
|
Joerg Sonnenberger
|
|
<joerg@netbsd.org>
|
|
implemented If-Modified-Since support
|
|
<p><dd>-
|
|
ISIHARA Takanori
|
|
<ishit@oak.dti.ne.jp>
|
|
provided a man page fix
|
|
<p><dd>-
|
|
Holger Weiss
|
|
<holger@CIS.FU-Berlin.DE>
|
|
provided http authorisation fixes
|
|
<p><dd>-
|
|
<xs@kittenz.org>
|
|
provided chroot and change-to-user support, and other various fixes
|
|
<p><dd>-
|
|
Coyote Point provided various CGI fixes
|
|
</dl>
|
|
<p>
|
|
There are probably others I have forgotten (let me know if you care)
|
|
<p>
|
|
Please send all updates to
|
|
<b>bozohttpd</b>
|
|
to
|
|
<mrg@eterna.com.au>
|
|
for inclusion in future releaases.
|
|
<h3 id="BUGS">
|
|
BUGS
|
|
</h3>
|
|
<b>bozohttpd</b>
|
|
does not handled HTTP/1.1 chunked input from the client yet.
|
|
</body>
|
|
</html>
|