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212 lines
8.2 KiB
212 lines
8.2 KiB
<?xml version="1.0" ?>
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<!DOCTYPE article PUBLIC "-//KDE//DTD DocBook XML V4.2-Based Variant V1.1//EN"
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"dtd/kdex.dtd" [
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<!ENTITY % addindex "IGNORE">
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<!ENTITY % English "INCLUDE" > <!-- change language only here -->
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]>
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<article lang="&language;">
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<articleinfo>
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<authorgroup>
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<author>&Krishna.Tateneni; &Krishna.Tateneni.mail;</author>
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<author>&Jost.Schenck; &Jost.Schenck.mail;</author>
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<!-- TRANS:ROLES_OF_TRANSLATORS -->
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</authorgroup>
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<date>2003-10-12</date>
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<releaseinfo>3.2</releaseinfo>
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<keywordset>
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<keyword>KDE</keyword>
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<keyword>KControl</keyword>
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<keyword>cookie</keyword>
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</keywordset>
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</articleinfo>
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<sect1 id="cookie">
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<title>Cookies</title>
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<para>Cookies are a mechanism used by web sites to store and retrieve
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information using your browser. For example, a web site may allow you
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to customize the content and layout of the pages you see, so that your
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choices are persistent across different visits to that web site.</para>
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<para>The web site is able to remember your preferences by storing a
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cookie on your computer. Then, on future visits, the web site retrieves
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the information stored in the cookie to format the content of the site
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according to your previously specified preferences.</para>
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<para>Thus, cookies play a very useful role in web browsing.
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Unfortunately, web sites often store and retrieve information in cookies
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without your explicit knowledge or consent. Some of this information may
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be quite useful to the web site owners, for example, by allowing them to
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collect summary statistics on the number of visits different areas of
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the web sites get, or to customize banner advertising.</para>
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<para>The cookies module of the &kcontrol; allows you to set policies
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for the use of cookies when you are browsing the web with the
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&konqueror; web browser. </para>
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<warning><para>Note that the policies that you set using this control
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module will <emphasis>not</emphasis> apply to other web browsers such
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as &Netscape;.</para></warning>
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<sect2 id="cookie-policy">
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<title>Policy</title>
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<para>Using the <guilabel>Policy</guilabel> tab, you can configure the
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&tde; applications that will handle cookies. You can do this by specifying a
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general cookie policy as well as special cookie policies for certain
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domains or hosts.</para>
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<para>The top of the policy tab has a checkbox labeled <guilabel>Enable
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cookies</guilabel>. If you leave this unchecked, cookies will be
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completely disabled. However, this may make browsing rather
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inconvenient, especially as some web sites require the use of browsers
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with cookies enabled.</para>
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<para>You will probably want to enable cookies and then set
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specific policies on how you want them to be handled.</para>
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<para>The first group of options create settings that apply to all cookies.</para>
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<variablelist>
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<varlistentry>
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<term><guilabel>Only accept cookies from originating server</guilabel></term>
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<listitem>
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<para>Some pages try to set cookies from servers other than the one
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you are seeing the <acronym>HTML</acronym> page from. For example,
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they show you advertisements, and the advertisements are from another
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computer, often one that belongs to a large advertising group. These
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advertisements may try to set a cookie which would allow them to
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track the pages you view across multiple web sites.</para>
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<para>Enabling this option will mean only cookies that come from the
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same web server as you are explicitly connecting to will be
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accepted.</para>
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</listitem>
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</varlistentry>
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<varlistentry>
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<term><guilabel>Automatically accept session cookies</guilabel></term>
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<listitem>
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<para>An increasingly common use for cookies is not to track your
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movements across many visits to a web site, but to just follow what you
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do during one single visit. Session cookies are saved as long as you
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are looking at the site, and deleted when you leave it.</para>
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<para>Web sites can use this information for various things, most
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commonly it is a convenience so that you do not have to keep logging in
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to view pages. For example, on a webmail site, without some kind of
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session <acronym>ID</acronym>, you would have to give your password
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again for each email you want to read. There are other ways to
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achieve this, but cookies are simple and very common.</para>
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<para>Enabling this option means that session cookies are always
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accepted, even if you don't accept any other kind, and even if you
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choose to reject cookies from a particular site, session cookies from
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that site will be accepted.</para>
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</listitem>
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</varlistentry>
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<varlistentry>
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<term><guilabel>Treat all cookies as session cookies</guilabel></term>
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<listitem>
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<para>If this option is enabled, all cookies are treated as session
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cookies. That is, they are not kept when you leave the
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web site.</para>
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<note>
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<para>The definition of <quote>leave the web site</quote> is vague.
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Some cookies may hang around for a little while after you are no
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longer viewing any pages on a particular web site. This is
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normal.</para>
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</note>
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</listitem>
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</varlistentry>
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</variablelist>
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<para>The section for <guilabel>Default Policy</guilabel> sets some
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further options that are mutually exclusive — you can choose only one
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of these options as the default, but you are free to set a different
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option for any specific web server.</para>
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<variablelist>
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<varlistentry>
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<term><guilabel>Ask for confirmation</guilabel></term>
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<listitem>
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<para>If this option is selected, you will be asked for confirmation
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every time a cookie is stored or retrieved. You can selectively accept
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or reject each cookie. The confirmation dialog will also allow you to
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set a domain specific policy, if you do not want to confirm each
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cookie for that domain.</para>
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</listitem>
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</varlistentry>
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<varlistentry>
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<term><guilabel>Accept all cookies</guilabel></term>
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<listitem>
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<para>If this option is selected, all cookies will be accepted without
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asking for confirmation.</para>
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</listitem>
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</varlistentry>
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<varlistentry>
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<term><guilabel>Reject all cookies</guilabel></term>
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<listitem>
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<para>If this option is selected, all cookies will be rejected without
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asking for confirmation.</para>
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</listitem>
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</varlistentry>
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</variablelist>
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<para>In addition to the default policy for handling of cookies, which you can
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set by selecting one of the three options described above, you can also set
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policies for specific host domains using the controls in the <guilabel>Domain
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Specific</guilabel> group.</para>
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<para>The Ask, Accept, or Reject policy can be applied to a specific
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domain by clicking on the <guibutton>New...</guibutton> button, which
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brings up a dialog. In this dialog, you can type the name of the
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domain (with a leading dot), then select the policy you want to apply
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to this domain. Note that entries may also get added while you are
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browsing, if the default policy is to ask for confirmation, and you
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choose a general policy for a specific host (for example, by selecting
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<guilabel>Reject all cookies from this domain</guilabel> when asked to
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confirm a cookie).</para>
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<para>You can also select a specific host domain from the list and click the
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<guibutton>Change</guibutton> button to choose a different policy for that
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domain than the one shown in the list.</para>
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<para>To delete a domain specific policy, choose a domain from the list, and
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then click the <guibutton>Delete</guibutton> button. The default policy will
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apply to domains which have been deleted from the list.</para>
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</sect2>
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<sect2 id="cookie-management">
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<title>Management</title>
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<para>In the <guilabel>Management</guilabel> tab you can browse and selectively
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delete cookies that have been set in the past.</para>
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<para>In the upper part of this dialog, you can see a list of domains displayed
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as a tree. Click on the little <guiicon>+</guiicon> next to a domain to see all
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cookies that have been set for this particular target domain. If you select one
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of these cookies, you will notice that its contents will show up in the frame
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<guilabel>Cookie Details</guilabel> below.</para>
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<para>By clicking the <guibutton>Delete</guibutton> button you can now delete the selected
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cookie. Click <guibutton>Delete All</guibutton> to delete all cookies stored.</para>
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<para>Choose <guibutton>Reload List</guibutton> to reload the list
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from your hard disk. You might want to do this if you have had the
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module open and are testing web sites, or have made many changes in the
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module itself.</para>
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</sect2>
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</sect1>
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</article>
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