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244 lines
9.9 KiB
HTML
244 lines
9.9 KiB
HTML
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
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"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
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<html xmlns="http://www.w3.org/1999/xhtml">
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<head>
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<meta name="generator" content="HTML Tidy, see www.w3.org" />
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<title>Apache module mod_usertrack</title>
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</head>
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<!-- Background white, links blue (unvisited), navy (visited), red (active) -->
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<body bgcolor="#FFFFFF" text="#000000" link="#0000FF"
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vlink="#000080" alink="#FF0000">
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<!--#include virtual="header.html" -->
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<h1 align="CENTER">Module mod_usertrack</h1>
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<p>This module uses cookies to provide for a
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<em>clickstream</em> log of user activity on a site.</p>
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<p><a href="module-dict.html#Status"
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rel="Help"><strong>Status:</strong></a> Extension<br />
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<a href="module-dict.html#SourceFile"
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rel="Help"><strong>Source File:</strong></a>
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mod_usertrack.c<br />
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<a href="module-dict.html#ModuleIdentifier"
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rel="Help"><strong>Module Identifier:</strong></a>
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usertrack_module<br />
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<a href="module-dict.html#Compatibility"
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rel="Help"><strong>Compatibility:</strong></a> Known as
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mod_cookies prior to Apache 1.3.</p>
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<h2>Summary</h2>
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<p>Previous releases of Apache have included a module which
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generates a 'clickstream' log of user activity on a site using
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cookies. This was called the "cookies" module, mod_cookies. In
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Apache 1.2 and later this module has been renamed the "user
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tracking" module, mod_usertrack. This module has been
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simplified and new directives added.</p>
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<h2>Directives</h2>
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<ul>
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<li><a href="#cookiedomain">CookieDomain</a></li>
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<li><a href="#cookieexpires">CookieExpires</a></li>
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<li><a href="#cookiename">CookieName</a></li>
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<li><a href="#cookiestyle">CookieStyle</a></li>
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<li><a href="#cookietracking">CookieTracking</a></li>
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</ul>
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<h2>Logging</h2>
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<p>Previously, the cookies module (now the user tracking
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module) did its own logging, using the <tt>CookieLog</tt>
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directive. In this release, this module does no logging at all.
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Instead, a configurable log format file should be used to log
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user click-streams. This is possible because the logging module
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now allows multiple log files. The cookie itself is logged by
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using the text <tt>%{cookie}n</tt> in the log file format. For
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example:</p>
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<pre>
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CustomLog logs/clickstream "%{cookie}n %r %t"
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</pre>
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For backward compatibility the configurable log module
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implements the old <tt>CookieLog</tt> directive, but this
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should be upgraded to the above <tt>CustomLog</tt> directive.
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<h2>2-digit or 4-digit dates for cookies?</h2>
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(the following is from message
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<022701bda43d$9d32bbb0$1201a8c0@christian.office.sane.com>
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in the new-httpd archives)
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<pre>
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From: "Christian Allen" <christian@sane.com>
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Subject: Re: Apache Y2K bug in mod_usertrack.c
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Date: Tue, 30 Jun 1998 11:41:56 -0400
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Did some work with cookies and dug up some info that might be useful.
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True, Netscape claims that the correct format NOW is four digit dates, and
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four digit dates do in fact work... for Netscape 4.x (Communicator), that
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is. However, 3.x and below do NOT accept them. It seems that Netscape
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originally had a 2-digit standard, and then with all of the Y2K hype and
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probably a few complaints, changed to a four digit date for Communicator.
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Fortunately, 4.x also understands the 2-digit format, and so the best way to
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ensure that your expiration date is legible to the client's browser is to
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use 2-digit dates.
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However, this does not limit expiration dates to the year 2000; if you use
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an expiration year of "13", for example, it is interpreted as 2013, NOT
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1913! In fact, you can use an expiration year of up to "37", and it will be
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understood as "2037" by both MSIE and Netscape versions 3.x and up (not sure
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about versions previous to those). Not sure why Netscape used that
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particular year as its cut-off point, but my guess is that it was in respect
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to UNIX's 2038 problem. Netscape/MSIE 4.x seem to be able to understand
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2-digit years beyond that, at least until "50" for sure (I think they
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understand up until about "70", but not for sure).
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Summary: Mozilla 3.x and up understands two digit dates up until "37"
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(2037). Mozilla 4.x understands up until at least "50" (2050) in 2-digit
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form, but also understands 4-digit years, which can probably reach up until
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9999. Your best bet for sending a long-life cookie is to send it for some
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time late in the year "37".
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</pre>
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<hr />
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<h2><a id="cookiedomain" name="cookiedomain">CookieDomain</a>
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directive</h2>
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<a href="directive-dict.html#Syntax"
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rel="Help"><b>Syntax:</b></a> CookieDomain <i>domain</i><br />
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<a href="directive-dict.html#Context"
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rel="Help"><b>Context:</b></a> server config, virtual host,
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directory, .htaccess<br />
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<a href="directive-dict.html#Status"
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rel="Help"><b>Status:</b></a> optional<br />
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<a href="directive-dict.html#Module"
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rel="Help"><b>Module:</b></a> mod_usertrack
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<p>This directive controls the setting of the domain to which
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the tracking cookie applies. If not present, no domain is
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included in the cookie header field.</p>
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<p>The domain string <b>must</b> begin with a dot, and
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<b>must</b> include at least one embedded dot. That is,
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".foo.com" is legal, but "foo.bar.com" and ".com" are not.</p>
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<hr />
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<h2><a id="cookieexpires"
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name="cookieexpires">CookieExpires</a> directive</h2>
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<a href="directive-dict.html#Syntax"
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rel="Help"><strong>Syntax:</strong></a> CookieExpires
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<em>expiry-period</em><br />
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<a href="directive-dict.html#Context"
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rel="Help"><strong>Context:</strong></a> <b>1.3.20 and
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earlier:</b> server config, virtual host; <b>1.3.21 and
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later:</b> server config, virtual host, directory,
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.htaccess<br />
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<a href="directive-dict.html#Status"
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rel="Help"><strong>Status:</strong></a> optional<br />
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<a href="directive-dict.html#Module"
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rel="Help"><strong>Module:</strong></a> mod_usertrack
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<p>When used, this directive sets an expiry time on the cookie
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generated by the usertrack module. The <em>expiry-period</em>
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can be given either as a number of seconds, or in the format
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such as "2 weeks 3 days 7 hours". Valid denominations are:
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years, months, weeks, hours, minutes and seconds. If the expiry
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time is in any format other than one number indicating the
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number of seconds, it must be enclosed by double quotes.</p>
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<p>If this directive is not used, cookies last only for the
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current browser session.</p>
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<hr />
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<h2><a id="cookiename" name="cookiename">CookieName</a>
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directive</h2>
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<a href="directive-dict.html#Syntax"
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rel="Help"><strong>Syntax:</strong></a> CookieName
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<em>token</em> <br />
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<a href="directive-dict.html#Default"
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rel="Help"><strong>Default:</strong></a> <em>Apache</em> <br />
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<a href="directive-dict.html#Context"
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rel="Help"><strong>Context:</strong></a> server config, virtual
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host, directory, .htaccess<br />
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<a href="directive-dict.html#Status"
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rel="Help"><strong>Status:</strong></a> optional<br />
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<a href="directive-dict.html#Module"
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rel="Help"><strong>Module:</strong></a> mod_usertrack <br />
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<a href="directive-dict.html#Compatibility"
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rel="Help"><strong>Compatibility:</strong></a> Apache 1.3.7 and
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later
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<p>This directive allows you to change the name of the cookie
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this module uses for its tracking purposes. By default the
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cookie is named "<code>Apache</code>".</p>
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<p>You must specify a valid cookie name; results are
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unpredictable if you use a name containing unusual characters.
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Valid characters include A-Z, a-z, 0-9, "_", and "-".</p>
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<hr />
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<h2><a id="cookiestyle" name="cookiestyle">CookieStyle</a>
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directive</h2>
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<a href="directive-dict.html#Syntax"
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rel="Help"><b>Syntax:</b></a> CookieStyle
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<i>Netscape|Cookie|Cookie2|RFC2109|RFC2965</i><br />
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<a href="directive-dict.html#Context"
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rel="Help"><b>Context:</b></a> server config, virtual host,
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directory, .htaccess<br />
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<a href="directive-dict.html#Status"
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rel="Help"><b>Status:</b></a> optional<br />
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<a href="directive-dict.html#Module"
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rel="Help"><b>Module:</b></a> mod_usertrack
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<p>This directive controls the format of the cookie header
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field. The three formats allowed are:</p>
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<ul>
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<li><b>Netscape</b>, which is the original but now deprecated
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syntax. This is the default, and the syntax Apache has
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historically used.</li>
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<li><b>Cookie</b> or <b>RFC2109</b>, which is the syntax that
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superseded the Netscape syntax.</li>
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<li><b>Cookie2</b> or <b>RFC2965</b>, which is the most
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current cookie syntax.</li>
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</ul>
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<p>Not all clients can understand all of these formats. but you
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should use the newest one that is generally acceptable to your
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users' browsers.</p>
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<hr />
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<h2><a id="cookietracking"
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name="cookietracking">CookieTracking</a> directive</h2>
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<a href="directive-dict.html#Syntax"
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rel="Help"><strong>Syntax:</strong></a> CookieTracking
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on|off<br />
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<a href="directive-dict.html#Context"
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rel="Help"><strong>Context:</strong></a> server config, virtual
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host, directory, .htaccess<br />
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<a href="directive-dict.html#Override"
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rel="Help"><strong>Override:</strong></a> FileInfo<br />
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<a href="directive-dict.html#Status"
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rel="Help"><strong>Status:</strong></a> optional<br />
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<a href="directive-dict.html#Module"
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rel="Help"><strong>Module:</strong></a> mod_usertrack
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<p>When the user track module is compiled in, and
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"CookieTracking on" is set, Apache will start sending a
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user-tracking cookie for all new requests. This directive can
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be used to turn this behavior on or off on a per-server or
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per-directory basis. By default, compiling mod_usertrack will
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not activate cookies. <!--#include virtual="footer.html" -->
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</p>
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</body>
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</html>
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