diff options
Diffstat (limited to 'doc/kcontrol/kdm/index.docbook')
| -rw-r--r-- | doc/kcontrol/kdm/index.docbook | 518 |
1 files changed, 518 insertions, 0 deletions
diff --git a/doc/kcontrol/kdm/index.docbook b/doc/kcontrol/kdm/index.docbook new file mode 100644 index 000000000..8f00db2f3 --- /dev/null +++ b/doc/kcontrol/kdm/index.docbook @@ -0,0 +1,518 @@ +<?xml version="1.0" ?> +<!DOCTYPE article PUBLIC "-//KDE//DTD DocBook XML V4.2-Based Variant V1.1//EN" +"dtd/kdex.dtd" [ +<!ENTITY % addindex "IGNORE"> +<!ENTITY % English "INCLUDE" > <!-- change language only here --> +]> + +<article lang="&language;"> +<articleinfo> + +<authorgroup> +<author>&Thomas.Tanghus; &Thomas.Tanghus.mail;</author> +<author>&Steffen.Hansen; &Steffen.Hansen.mail;</author> +<author>&Mike.McBride; &Mike.McBride.mail;</author> +<!-- TRANS:ROLES_OF_TRANSLATORS --> +</authorgroup> + +<date>2002-02-13</date> +<releaseinfo>3.00.00</releaseinfo> + +<keywordset> +<keyword>KDE</keyword> +<keyword>KControl</keyword> +<keyword>KDM configuration</keyword> +<keyword>login manager</keyword> +<keyword>login</keyword> +</keywordset> +</articleinfo> + +<sect1 id="login-manager"> +<title>Login Manager</title> + +<para>Using this module, you can configure the &kde; graphical login +manager, &kdm;. You can change how the login screen looks, who has +access using the login manager and who can shutdown the +computer.</para> + +<para>In order to organize all of these options, this module is +divided into six sections: <link +linkend="kdmconfig-appearance"><guilabel>Appearance</guilabel></link>, +<link linkend="kdmconfig-font"><guilabel>Font</guilabel></link>, <link +linkend="kdmconfig-background"><guilabel>Background</guilabel></link>, +<link +linkend="kdmconfig-sessions"><guilabel>Sessions</guilabel></link>, +<link linkend="kdmconfig-users"><guilabel>Users</guilabel></link> and +<link +linkend="kdmconfig-convenience"><guilabel>Convenience</guilabel></link>.</para> + +<para>You can switch between the sections using the tabs at the top of +the window.</para> + +<note><para>If you are not currently logged in as a superuser, you +will need to click the <guibutton>Administrator Mode</guibutton> +Button. You will then be asked for a superuser password. Entering a +correct password will allow you to modify the settings of this +module.</para></note> + +<sect2 id="kdmconfig-appearance"> +<title>Appearance</title> + +<para>From this page you can change the visual appearance of &kdm;, +&kde;'s graphical login manager.</para> + +<para>The greeting string is the title of the login screen. If the +string contains the word <computeroutput>HOSTNAME</computeroutput> it +will be translated to the domainless name of the machine &kdm; is +installed on.</para> + +<para>You can then choose to show either the current system time, a logo +or nothing special in the login box. Make your choice in the radio +buttons labeled <guilabel>Logo area</guilabel>. Using the +<guilabel>Positions</guilabel> setting, you can choose to either center +the content of the logo area or to position it using fixed +coordinates.</para> + +<para>If you chose <guilabel>Show logo</guilabel> you can now choose a +logo:</para> + +<itemizedlist> +<listitem> +<para>Drop an image file on the image button.</para> +</listitem> +<listitem> +<para>Click on the image button and select a new image from the image chooser +dialog.</para> +</listitem> +</itemizedlist> + +<para>If you do not specify a logo the default +<filename>$<envar>KDEDIR</envar>/share/apps/kdm/pics/kdelogo.png</filename> +will be displayed.</para> + +<para>While &kde;'s style depends on the settings of the user logged in, +the style used by &kdm; can be configured using the <guilabel>GUI +Style</guilabel> option.</para> + +<para>Below that, you have two dropdown boxes to choose the language and the +country for your login box.</para> + +</sect2> + +<sect2 id="kdmconfig-font"> +<title>Font</title> + +<para>From this section of the module you can change the fonts used in +the login window.</para> + +<para>You can select three different font styles from the drop down box +(<guilabel>Greeting</guilabel>, <guilabel>Fail</guilabel>, +<guilabel>Standard</guilabel>). When you click on the <guibutton>Change +font</guibutton> button a dialog appears from which you can select the +new characteristics for the font style.</para> + +<itemizedlist> +<listitem> +<para>The <guilabel>Greeting</guilabel> font is the font used for the title +(Greeting String).</para> +</listitem> +<listitem> +<para>The <guilabel>Fail</guilabel> font is used when a login fails.</para> +</listitem> +<listitem> +<para>The <guilabel>Standard</guilabel> font is used in all other places in the +login window.</para> +</listitem> +</itemizedlist> + +<para>An example of each font can be seen in the +<guilabel>Example</guilabel> Box.</para> + +</sect2> + +<sect2 id="kdmconfig-background"> +<title>Background</title> + +<para>Here you can change the desktop background which will be displayed +when a user logs in. You can have a single color or an image as a +background. If you have an image as the background and select center, the +selected background color will be used around the image if it isn't +large enough to cover the entire desktop.</para> + +<para>The background colors and effects are controlled by the options on +the tab labeled <guilabel>Background</guilabel> and you select a +background image and its placement from the options on the tab labeled +<guilabel>Wallpaper</guilabel>.</para> + +<para>To change the default background color(s) simply click either of +the color buttons and select a new color.</para> + +<para>The dropdown box above the color buttons provides you with several +different blend effects. Choose one from the list, and it will be +previewed on the small monitor at the top of the window. Your choices +are:</para> + +<variablelist> +<varlistentry> +<term>Flat</term> +<listitem><para>By choosing this mode, you select one color (using the color +button labeled <guibutton>Color 1</guibutton>), and the entire background is +covered with this one color.</para></listitem> +</varlistentry> +<varlistentry> +<term>Pattern</term> +<listitem><para>By choosing this mode, you select two colors (using both color +buttons). </para> <para>You then select a pattern by clicking +<guilabel>Setup</guilabel>. This opens a new dialog window, which gives you +the opportunity to select a pattern. Simply click once on the pattern of your +choice, then click on <guilabel>OK</guilabel>, and &kde; will render the pattern +you selected using the two colors you selected. For more on patterns, see the +section <ulink url="help:/kcontrol/background/index.html#bkgnd-patterns">Background: Adding, Removing and Modifying +Patterns</ulink>.</para></listitem> +</varlistentry> +<varlistentry> +<term>Background Program</term> +<listitem><para>By selecting this option, you can have &kde; use an external +program to determine the background. This can be any program of your choosing. +For more information on this option, see the section entitled <ulink +url="help:/kcontrol/background/index.html#bkgnd-programs">Background: Using an external program</ulink>.</para></listitem> +</varlistentry> +<varlistentry> +<term>Horizontal Gradient</term> +<listitem><para>By choosing this mode, you select two colors (using both color +buttons). &kde; will then start with the color selected by <guilabel>Color +1</guilabel> on the left edge of the screen, and slowly transform into the +color selected by <guilabel>Color 2</guilabel> by the time it gets to the +right edge of the screen.</para></listitem> +</varlistentry> +<varlistentry> +<term>Vertical Gradient</term> +<listitem><para>By choosing this mode, you select two colors (using both color +buttons). &kde; will then start with the color selected by <guilabel>Color +1</guilabel> on the top edge of the screen, and slowly transform into the color +selected by <guilabel>Color 2</guilabel> as it moves to the bottom of the +screen.</para></listitem> +</varlistentry> +<varlistentry> +<term>Pyramid Gradient</term> +<listitem><para>By choosing this mode, you select two colors (using both color +buttons). &kde; will then start with the color selected by <guilabel>Color +1</guilabel> in each corner of the screen, and slowly transform into the color +selected by <guilabel>Color 2</guilabel> as it moves to the center of the +screen.</para></listitem> +</varlistentry> +<varlistentry> +<term>Pipecross Gradient</term> +<listitem><para>By choosing this mode, you select two colors (using both color +buttons). &kde; will then start with the color selected by <guilabel>Color +1</guilabel> in each corner of the screen, and slowly transform into the color +selected by <guilabel>Color 2</guilabel> as it moves to the center of the +screen. The <quote>shape</quote> of this gradient is different then the pyramid +gradient.</para></listitem> +</varlistentry> +<varlistentry> +<term>Elliptic Gradient</term> +<listitem><para>By choosing this mode, you select two colors (using both color +buttons). &kde; will then start with the color selected by <guilabel>Color +2</guilabel> in the center of the screen, and slowly transform into the color +selected by <guilabel>Color 1</guilabel> as it moves to the edges, in an +elliptical pattern.</para></listitem> +</varlistentry> +</variablelist> + +<para>The setup button is only needed for if you select <guilabel>Background +program</guilabel> or <guilabel>Patterns</guilabel>. In these instances, +another window will appear to configure the specifics.</para> +<para><emphasis>Wallpaper</emphasis></para> +<para>To select a new background image first, click on the +<guilabel>Wallpapers</guilabel> tab, then you can either select an image from the +drop-down list labeled <guilabel>Wallpaper</guilabel> or select +<guibutton>Browse...</guibutton> and select an image file from a file +selector.</para> + +<para>The image can be displayed in six different ways:</para> +<variablelist> +<varlistentry> +<term>No wallpaper</term> +<listitem><para>No image is displayed. Just the background colors.</para> +</listitem></varlistentry> +<varlistentry> +<term>Centered</term> +<listitem><para>The image will be centered on the screen. The background colors +will be present anywhere the image does not cover.</para> </listitem> +</varlistentry> +<varlistentry> +<term>Tiled</term> +<listitem><para>The image will be duplicated until it fills the entire +desktop. The first image will be placed in the upper left corner of the screen, +and duplicated downward and to the right.</para> </listitem> +</varlistentry> +<varlistentry> +<term>Center Tiled</term> +<listitem><para>The image will be duplicated until it fills the entire +desktop. The first image will be placed in the center of the screen, and +duplicated upward, downward to the right, and to the left.</para> </listitem> +</varlistentry> +<varlistentry> +<term>Centered Maxpect</term> +<listitem><para>The image will be placed in the center of the screen. It will +be scaled to fit the desktop, but it will not change the aspect ratio of the +original image. This will provide you with an image that is not distorted. +</para> </listitem> +</varlistentry> +<varlistentry> +<term>Scaled</term> +<listitem><para>The image will be scaled to fit the desktop. It will be +stretched to fit all four corners.</para> </listitem> +</varlistentry> +</variablelist> + +</sect2> + +<sect2 id="kdmconfig-sessions"> +<title>Sessions</title> + +<para><guilabel>Allow to shutdown</guilabel></para> +<para>Use this dropdown box to choose who is allowed to shut down:</para> +<itemizedlist> +<listitem> +<para><guilabel>None</guilabel>: No one can shutdown the computer using &kdm;. +You must be logged in, and execute a command.</para> +</listitem> +<listitem> +<para><guilabel>All</guilabel>: Everyone can shutdown the computer using +&kdm;.</para> +</listitem> +<listitem><para><guilabel>Root only</guilabel>: &kdm; requires that the +<systemitem>root</systemitem> password be entered before shutting down the +computer.</para></listitem> +<listitem><para><guilabel>Console only</guilabel>: The user must be at this +console, to shut down the computer.</para></listitem> +</itemizedlist> + +<para><emphasis>Commands</emphasis></para> +<para>Use these 3 blanks to define the exact shutdown command.</para> +<para>The shutdown command defaults to:</para> + +<para><command>/sbin/shutdown</command></para> + +<para>The restart command defaults to:</para> + +<para><command>/sbin/reboot</command></para> + +<para>The Console mode (which restarts the computer as a console only terminal) +defaults to:</para> + +<para><command>/sbin/init <option>3</option></command></para> + +<para>When <guilabel>Show boot options</guilabel> is enabled, &kdm; will on reboot +offer you options for the lilo boot manager. For this feature to work, you will +need to supply the correct paths to your <command>lilo</command> command and to +lilo's map file.</para> + + +<sect3 id="kdmconfig-sess"> +<title>Session types</title> + +<para>Define which session types should be accessible from the login +window.</para> + +<para> For more information on this subject, look at <filename +class="directory">/etc/X11/xdm/Xsession</filename> to find your +<application>xdm</application> setup files. Also review the <ulink +url="man:xdm">xdm man pages</ulink>, especially under the SESSION +PROGRAM section.</para> + +<para>To add a session, type its name in the +blank entitled <guilabel>New types</guilabel>, and click +<guibutton>Add new</guibutton>. </para> + +<para>To remove a session, select the session from the list and click +<guibutton>Remove</guibutton>.</para> + +</sect3> + +</sect2> + + +<sect2 id="kdmconfig-users"> +<title>Users</title> + +<para>From here you can change the way users are represented in the +login window.</para> + +<para>As you look on this window, you will see three lists (All users, +selected users, and no-show users). You also see an image box, and a +set of options along the right side of the window.</para> + +<para>The first thing you must decide, is if you are going to show users +or not.</para> + + +<para>If you choose to show users, then the login window will show +images (which you select), of a list of users. When someone is ready to +login, they select their user name/image, enter their password, and they +are granted access. </para> + +<para>If you choose not to show users, then the login window will be +more traditional. Users will need to type their username, and password +to gain entrance. This is the preferred way if you have many users on +this terminal.</para> + +<sect3 id="kdmconfig-showusers"> +<title>To show (and sort) or not to show users</title> + +<para>Along the right edge of the window are two check boxes:</para> + +<para>If <guilabel>Show users</guilabel> is selected, you have chosen to +show images of users, instead of making them type their login +name.</para> + +<para>If <guilabel>Sort users</guilabel> is selected, then the list of +users will be sorted alphabetically in the login window. If unchecked, +users will be listed in the same order as they are on this page. If +<guilabel>Show users</guilabel> is not checked, this has no +effect.</para> + +</sect3> + +<sect3 id="kdmconfig-whichusers"> +<title>How to determine which users to show and which users to hide</title> + +<para>Below the user image box, and above the <guilabel>Show +users</guilabel> check box, is a set of two radio buttions:</para> + +<itemizedlist> +<listitem><para>Show only selected users: If this option is selected, only the +users contained in the list labelled <guilabel>Selected Users</guilabel>, will +be displayed in the login window. If <guilabel>Show users</guilabel> is not +checked, this has no effect.</para></listitem> +<listitem><para>Show all users but no-show users: If this option is selected, +all users will be listed, <emphasis>except</emphasis> those users contained in +the list entitled <guilabel>No show users</guilabel>. If <guilabel>Show +users</guilabel> is not checked, this has no effect. </para></listitem> +</itemizedlist> + +</sect3> + +<sect3 id="kdmconfig-select"> +<title>Select users</title> + +<para>This page contains three listboxes. The large listbox on the left +shows all the users on the system which might be a genuine user.</para> + +<para>The top rightmost listbox shows the selected users and the bottom +rightmost listbox shows the users we don't want displayed in the login +window.</para> + +<para>To move a user from one listbox to another you click on the +username in the listbox and click <guibutton>>></guibutton> to +move the user from the leftmost box the the rightmost box or +<guibutton><<</guibutton> to move the user from the rightmost box +to the leftmost box.</para> + +</sect3> + +<sect3 id="kdmconfig-image"> +<title>Images</title> + +<note><para>This section of the manual only applies if <guilabel>Show +users</guilabel> is selected. If it is not, this image box has no +effect.</para></note> + +<para>Every user on the system can be represented by a image. The image +for the user is kept in a file called +<filename>$<envar>KDEDIR</envar>/share/apps/kdm/pics/users/$<envar>USER</envar>.xpm.</filename> +If the user doesn't have such a file the file +<filename>$<envar>KDEDIR</envar>/share/apps/kdm/pics/users/default.xpm</filename> +will be used instead.</para> + +<para>To assign a new image to a user just select the user in one of the +listboxes and either drop an imagefile on the image button to the right +or click on the image button and select a new image from the image +selector.</para> + +<para>If no user is currently selected you will be asked if you want to change +the default image.</para> + +<para>The replacement is performed by a &konqueror; process so if the +image file already exists you will be prompted by &konqueror; if you +want to replace it. If you confirm the image will be replaced - you will +<emphasis>not</emphasis> have to press the <guibutton>Apply</guibutton> +button.</para> + +</sect3> +</sect2> + + +<sect2 id="kdmconfig-convenience"> +<title>Convenience</title> + +<para>In the <guilabel>convenience</guilabel> tab you can configure some +options that make life easier for lazy people, like auto login or +disabling passwords.</para> + +<important><para>Please think more than twice before using these +options. Every option in the <guilabel>convenience</guilabel> tab is +well-suited to seriously compromise your system security. Practically, +these options are only to be used in a completely non-critical +environment, ⪚ a private computer at home. </para></important> + +<sect3 id="loginmanager-convenience-autologin"> +<title>Automatic Login</title> + +<para>Automatic login will give anyone access to a certain account on +your system without doing any authentication. You can enable it using +the option <guilabel>Enable auto-login</guilabel>.</para> + +<para>Automatic login comes in two flavors: <guilabel>truly automatic +login</guilabel> acts like you would expect automatic login to, &ie; +&kdm; will automatically login without expecting any input from the +user. Enable this using the <guilabel>Truly automatic login</guilabel> +option. If this option is not enabled, &kdm; will start normally, +enabling you to login as any user, and will only perform automatic login +if you kill the X server, ⪚ by pressing <keycombo +action="simul">&Ctrl;&Alt;<keycap>Backspace</keycap></keycombo>.</para> + +<para>You can choose the account to be used for automatic login in the +list below.</para> + +</sect3> + +<sect3 id="loginmanager-convenience-nopasswd"> +<title>Password-less Login</title> + +<para>Using this feature, you can allow certain users to login without +having to provide their password. Enable this feature using the +<guilabel>Enable password-less logins</guilabel> option.</para> + +<para>Below this option you will see a list of users for which a password +is required, as well as a (by default, empty) list of users that do not +need to provide a password. When <guilabel>Enable password-less +logins</guilabel> is enabled, you can move users from one list into the +other, by selecting them and then clicking the +<guibutton>>></guibutton> and <guibutton><<</guibutton> +buttons.</para> + +<important><para>Again, this option should only be used in a safe +environment. If you enable it on a rather public system you should take +care that only users with heavy access restrictions are granted +password-less login, ⪚ +<systemitem>guest</systemitem>.</para></important> + +<para>The <guilabel>Automatically login after X server crash</guilabel> +option allows you to skip the authentication procedure when your X +server accidentally crashed. <guilabel>Show previous user</guilabel> +will show the name of the last login already entered into the login +field in &kdm;. Some site administrators would consider even this a +possible security weakness, because potential attackers then know at +least one valid login.</para> + + +</sect3> + +</sect2> + +</sect1> + +</article> |