fichier /etc/apache2/freedom.d/72_mod_dav.conf:

BrowserMatch "Microsoft-WebDAV-MiniRedir/5.1.2600" redirect-carefully
NameVirtualHost *:80

<VirtualHost 172.20.102.165:80>
  #Classic Authentificated Dav Server
  ServerName webdav_server
  DocumentRoot  /usr/share/what/dav
  <Directory /usr/share/what/dav/>
     DirectoryIndex  zou679__e.php
     #        AcceptPathInfo On
     <Files ~ "zou679__e.php">
        AuthType Basic
        AuthName 'Freedom Connection'
        AuthBasicProvider pam
        AuthnPAMService httpd
        Require valid-user
    </Files>
    RewriteEngine On
    #RewriteBase   /dav
    RewriteCond %{REQUEST_URI} !.*zou679__e.php$
    RewriteRule ^(.*)$ /zou679__e.php?filename=$1 [PT,L]
  </Directory>
</VirtualHost>


<VirtualHost 172.20.102.165:80>
  #Virtual Dav Server (Authenticate by session numbers)
  ServerName freedav_server
  DocumentRoot  /usr/share/what/dav
  <Directory /usr/share/what/dav/>
    DirectoryIndex  zou679__e.php
    #        AcceptPathInfo On
    Allow from All
    RewriteEngine On
    RewriteCond %{REQUEST_URI} !.*zou679__e.php$
    RewriteRule ^(.*)$ /zou679__e.php?filename=$1 [PT,L]
  </Directory>
</VirtualHost>

============================================================================
fichier pg_services.conf :

[service-core]
host=127.0.0.1
port=5432
user=freedomrole
password=secret
dbname=anakeen

[service-freedom]
host=127.0.0.1
port=5432
user=freedomrole
password=secret
dbname=freedom

[default-webdav]
host=127.0.0.1
port=5432
user=freedomrole
password=secret
dbname=default-webdav

=======================================================================
fichier /usr/share/what/ DAV/DAV_init.php

global $app_const;

$app_const= array(
  "INIT" => "yes",
  "VERSION" => "0.6.1-0",
  "FREEDAV_SERVEUR"    =>array("val"=>"",
                               "descr"=>N_("address of the webdav server for freedav"),
                               "global"=>"Y"),
  "WEBDAV_SERVEUR"    =>array("val"=>"",
                               "descr"=>N_("address of the webdav server for authenticate server"),
                               "global"=>"Y"),
  "WEBDAV_DB"    =>array("val"=>"service=default-webdav",
                               "descr"=>N_("database access for webdav"),
                               "global"=>"Y"),
  "WEBDAV_ROOTID"    =>array("val"=>"9",
                             "descr"=>N_("folder identificator for root"),
                             "global"=>"Y")
);