--- loncom/html/adm/help/tex/Domain_Configuration_Quotas.tex	2015/03/26 18:46:58	1.4
+++ loncom/html/adm/help/tex/Domain_Configuration_Quotas.tex	2015/05/29 20:25:16	1.5
@@ -32,15 +32,23 @@ Authoring Spaces.
 
 WebDAV allows a user to connect to an Authoring Space in the same way as removable
 media, and to use their own laptop/desktop computer's file management tools and
-applications to move, edit and delete files.  In the case of MacOS, the user selects 
-the ``Go'' item in the Finder toolbar and selects ``Connect to Server''.
-The user will then enter a URL for a library server where the authoring space is located:
-e.g., https:// $<$ hostname $>$ /webdav/ $<$dom$>$ / $<$ username $>$/  where dom is the domain 
-and username is the username of the Authoring Space owner. 
+applications to move, edit and delete files. See: ``WebDAV access to Authoring Space''
+section in the Authoring manual for more information.
+
 Note: webDAV usage requires Apache with SSL to be running on the library server.  
 The user will be prompted to enter a username (this will be the LON-CAPA username
 if the user is also the author, or username:domain of the user,
-if the access is for a co-author), and the user's LON-CAPA password.
+if the access is for a co-author), and the user's LON-CAPA password. 
+
+If you use Single Sign On to authenticate LON-CAPA users in your domain, then to
+support webDAV you also need to support authentication by LON-CAPA for your users.
+This can achieved if the authentication type stored internally for each SSO user is 
+set to either (a) Kerberos 5 (with a parameter --  the appropriate Kerberos realm 
+set), or (b) Local Authentication, with /home/httpd/lib/perl/localauth.pm
+customized to verify username and password (e.g., via LDAP).  If a user can log-in  
+to LON-CAPA via the URL /adm/login (thereby by-passing SSO), then the same user will 
+also be able to authenticate using a WebDAV client (assuming other requirements are 
+met, i.e., SSL, WebDAV access enabled, active author or co-author role).
 
 The requirement to obsolete published files before moving or deleting them, which applies to
 the regular web browser-based management of Authoring Space, also applies in the webDAV