httpd.conf

<VirtualHost *:*>

    # Don't forget to change the server name
    # ServerName dav.example.org

    # The DocumentRoot is also required
    # DocumentRoot /home/sabredav/

    RewriteEngine On
    # This makes every request go to server.php
    RewriteRule ^/(.*)$ /server.php [L]

    # Output buffering needs to be off, to prevent high memory usage
    php_flag output_buffering off

    # This is also to prevent high memory usage
    php_flag always_populate_raw_post_data off

    # This is almost a given, but magic quotes is *still* on on some
    # linux distributions
    php_flag magic_quotes_gpc off

    # SabreDAV is not compatible with mbstring function overloading
    php_flag mbstring.func_overload off

</VirtualHost *:*>

Authentication over fastcgi

RewriteEngine on
RewriteRule .* - [E=HTTP_AUTHORIZATION:%{HTTP:Authorization},L]

RewriteEngine on
RewriteRule .* /server.php [E=HTTP_AUTHORIZATION:%{HTTP:Authorization},L]