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1.1       raeburn     1: \label{Domain_Configuration_Quotas}
1.2       raeburn     2: By default, each user in your domain can create blogs, a personal 
                      3: information page, and store files in an individual portfolio space. 
                      4: Students can submit items from their portfolio to meet the requirements 
                      5: of assignments in their courses.
1.1       raeburn     6: 
1.2       raeburn     7: You can choose to disable personal information pages, blogs and/or portfolios 
                      8: for different groups of users defined for your domain (e.g., Faculty, Adjunct, 
                      9: Staff, Student).  If the ``Modify User'' utility in User Management is 
                     10: used to explicitly set availability of these tools for a particular user,
                     11: that will override the corresponding settings determined by the user's 
                     12: affiliation.
                     13: 
1.3       raeburn    14: If you choose to enable portfolios, default quotas (in MB) 
1.2       raeburn    15: can similarly be set to vary by institutional affiliation.
1.1       raeburn    16: If a user is affiliated with more than one group, whichever default
                     17: quota is largest for the different groups is the one which applies.
1.3       raeburn    18: Institutional types are defined in the ``Institutional user types''
1.4       raeburn    19: section on the ``Default authentication, language, timezone, portal, types'' 
1.3       raeburn    20: screen. If no types have been defined, then a single default quota
                     21: will apply for all users from the domain.
1.2       raeburn    22: 
                     23: Default portfolio quotas which can be set for users in your domain
                     24: will be overridden by any quota you set for an individual user via:
                     25: the ``Modify User'' utility.
1.3       raeburn    26: 
                     27: Additional options for authoring spaces can be set for the various user 
                     28: types: (a) whether webDAV is active, and (b) the default quota for Authoring Space.
                     29: These only come into effect for a particular user, when an author and/or one or
                     30: more co-author roles have been assigned to a user to provide access to one or more 
                     31: Authoring Spaces.
                     32: 
                     33: WebDAV allows a user to connect to an Authoring Space in the same way as removable
                     34: media, and to use their own laptop/desktop computer's file management tools and
1.5       raeburn    35: applications to move, edit and delete files. See: ``WebDAV access to Authoring Space''
                     36: section in the Authoring manual for more information.
                     37: 
1.4       raeburn    38: Note: webDAV usage requires Apache with SSL to be running on the library server.  
1.6       raeburn    39: The user will be prompted to enter his/her username (this will be the LON-CAPA username
                     40: or username,domain if the access is for a co-author with a domain different 
1.7       raeburn    41: to that of the author), and the user's LON-CAPA password. webDAV also requires that the
1.8     ! raeburn    42: dav and dav\_fs modules are enabled in Apache. The way those are enabled depends on the 
1.7       raeburn    43: Linux distro (command line access required).
                     44: the Apache config.  
                     45: 
                     46: \begin{itemize}
                     47: 
                     48: \item CentOS, Red Hat and Scientific Linux (6 and earlier)
                     49: 
                     50: The required LoadModule lines are included in the /etc/httpd/conf/httpd.conf
                     51: file added by install.pl run to prepare a server for installation of LON-CAPA.
                     52: 
                     53: \item CentOS, Red Hat and Scientific Linux 7
                     54: 
                     55: The required LoadModule lines are in the default /etc/httpd/conf.modules.d/00-dav.conf 
                     56: file added when the httpd rpm is installed.
                     57: 
                     58: \item Ubuntu
                     59: 
1.8     ! raeburn    60: Use the commands: a2enmod dav and a2enmod dav\_fs to enable the modules. 
1.7       raeburn    61: 
                     62: \item SLES
                     63: 
1.8     ! raeburn    64: The APACHE\_MODULES entry in /etc/sysconfig/apache2 contains the list of modules to be
        !            65: loaded. If dav and dav\_fs are not present they should be added to the list.
1.7       raeburn    66: 
                     67: \end{itemize}
                     68: 
                     69: (Reload Apache after making any changes to the Apache configuration).
1.5       raeburn    70: 
                     71: If you use Single Sign On to authenticate LON-CAPA users in your domain, then to
                     72: support webDAV you also need to support authentication by LON-CAPA for your users.
                     73: This can achieved if the authentication type stored internally for each SSO user is 
                     74: set to either (a) Kerberos 5 (with a parameter --  the appropriate Kerberos realm 
                     75: set), or (b) Local Authentication, with /home/httpd/lib/perl/localauth.pm
                     76: customized to verify username and password (e.g., via LDAP).  If a user can log-in  
                     77: to LON-CAPA via the URL /adm/login (thereby by-passing SSO), then the same user will 
                     78: also be able to authenticate using a WebDAV client (assuming other requirements are 
                     79: met, i.e., SSL, WebDAV access enabled, active author or co-author role).
1.3       raeburn    80: 
                     81: The requirement to obsolete published files before moving or deleting them, which applies to
                     82: the regular web browser-based management of Authoring Space, also applies in the webDAV 
                     83: environment. Moving and deleting directories in the webDAV environment is prohibited if
                     84: the directory, or any (nested) subdirectory contains a non-obsolete published resource.
                     85: 
                     86: Given the ability to easily delete unpublished content in webDAV (without the ability to 
                     87: reverse the deletion), it is important that authors assigned webDAV access are especially
                     88: careful when working in the webDAV environment. 
                     89: