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<page xmlns="http://projectmallard.org/1.0/" xmlns:its="http://www.w3.org/2005/11/its" type="topic" id="contacts-ldap" xml:lang="en-GB">

  <info>
    <link type="guide" xref="contacts-using-several-addressbooks"/>

    <revision pkgversion="3.1.5" version="0.4" date="2015-03-09" status="final"/>

    <credit type="author">
      <name its:translate="no">Andre Klapper</name>
      <email its:translate="no">ak-47@gmx.net</email>
    </credit>
    <credit type="author">
      <name its:translate="no">Novell, Inc</name>
      <!-- Content partially from
	   https://help.gnome.org/users/evolution/2.32/usage-contact-sharing.html.en
	   and
	   https://help.gnome.org/users/evolution/2.32/config-prefs-contact.html.en#bxmw6w5
	   -->
    </credit>

    <include xmlns="http://www.w3.org/2001/XInclude" href="legal.xml"/>

    <desc>Use shared address books on a local network.</desc>
  </info>

  <title>Adding LDAP access</title>

  <p>The LDAP protocol was created to let users share contact information over
  a network by sharing access to a central directory. LDAP allows a company to
  maintain a shared set of contact information. Many companies keep a common
  LDAP address book for all their employees or for client contacts.</p>

<section id="add-ldap-addressbook">
  <title>Adding an LDAP address book</title>

  <steps>
    <item>
      <p>Click <guiseq><gui>File</gui><gui>New</gui>
      <gui>Address Book</gui></guiseq>.</p>
    </item>
    <item>
      <p>In the <gui>Type</gui> field, select
      <gui>On LDAP Servers</gui>.</p>
    </item>
    <item>
      <p>Enter a name that you prefer.</p>
    </item>
    <item>
      <p>In the <gui>Connecting to LDAP</gui> tab:</p>
      <list>
        <item>
          <p>Enter the address of the server, the port number (the default number
          is 389) and whether you want to connect securely.</p>
        </item>
        <item>
          <p>Define the login method and your username.</p>
        </item>
      </list>
    </item>
    <item>
      <p>In the <gui>Using LDAP</gui> tab you define the following
      settings:</p>
      <list>
        <item>
	  <p>Search Base: The search base is the starting point for a directory
	  search. Contact your system administrator for information about the
	  correct settings.</p>
        </item>
        <item>
	  <p>Search Scope: The search scope is the breadth of a given search.</p>
	  <p>The following options are available:</p>
          <list>
            <item>
	      <p>One Level: Searches one entry below the Search Base.</p>
	    </item>
            <item>
	      <p>Subtree: Searches the Search Base and all entries below it.</p>
            </item>
          </list>
        </item>
        <item>
	  <p>Search Filter: The search filter can be set here for all the LDAP
	  queries. For example:</p>
          <list>
            <item>
              <p><code>ObjectClass=*</code>: Lists all the objects from the
              server.</p>
	    </item>
            <item>
	      <p><code>ObjectClass=User</code>: Lists only the users.</p>
	    </item>
            <item>
	      <p><code>Filter (|(ObjectClass=User)(ObjectClass=groupOfNames))</code>:
	      Retrieves the User and Contact List objects.</p>
	    </item>
            <item>
	      <p><code>(&amp;(mail=*)(ObjectClass=*))</code>: Lists the objects
	      associated with the email addresses.</p>
	    </item>
          </list>
        </item>
        <item>
	  <p>Download Limit: The maximum number of results for a given search.
	  Most servers refuse to send more than 500 contacts, but you can set
	  the number lower if you want to shorten downloads for very broad
	  searches. This option is ignored, if <gui>Copy book content locally
	  for offline operation</gui> is checked.</p>
        </item>
      </list>
    </item>
    <item>
      <p>Click <gui style="button">OK</gui>.</p>
    </item>
  </steps>

  <note style="tip">
    <p>If you are unsure about some settings, ask your system
    administrator.</p>
  </note>

</section>

<section id="ldap-vs-local-addressbooks">
  <title>Differences to local address books</title>

  <p>LDAP address books work like local address books on your computer, with
  the following exceptions:</p>

  <list>
    <item>
      <p>Network folders are only available when you are connected to the network. If you use a laptop or have a modem connection, you might want to copy or cache some of the network directory. You do this by dragging and dropping your desired contacts into the local address books.</p>
    </item>
    <item>
      <p>You can also mark the network folder for offline usage. To mark the
      folder, right-click the folder, click <gui>Properties</gui> and select
      <gui>Copy folder content locally for offline operation</gui>.</p>
    </item>
    <item>
      <p>To prevent excess network traffic, <app>Evolution</app> does not
      normally load data from the LDAP server upon opening.</p>
    </item>
    <item>
      <p>Depending on your server settings, you might not be able to edit all
      the fields in a contact stored on an LDAP server. Some servers prohibit
      some or all changes, and others use a smaller set of fields than
      <app>Evolution</app> allows. Check with your system administrator if you
      need different settings.</p>
    </item>
  </list>

</section>

</page>
