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Annotation of loncom/html/adm/help/tex/Domain_Configuration_Server_Status.tex, revision 1.1

1.1     ! raeburn     1: \label{Domain_Configuration_Server_Status}
        !             2: Access to pages which provide server status information for LON-CAPA servers
        !             3: in a domain is controlled by a Domain Coordinator.  When a user who has a Domain 
        !             4: Coordinator role is logged into LON-CAPA, the user automatically has access to
        !             5: server status pages.  Access can also be granted to other users by either (a) 
        !             6: specifying username:domain, or (b) specifying IP addresses for the clients from
        !             7: which access will be made.  In the case of IP-based access there is no need for
        !             8: the user to be logged into LON-CAPA or even have a LON-CAPA user account.
        !             9: 
        !            10: \begin{itemize}
        !            11: 
        !            12: \item There are six server status pages: 
        !            13: 
        !            14: \begin{itemize}
        !            15: \item User Status Summary - information about User Sessions which have been hosted on the server since the last nightly clean-up of lonIDs for stale sessions, and where the user has not logged out. Sessions are classified into: Active, Moderately Active and Inactive.
        !            16: \item Detailed Report - information saved by the nightly run of loncron which checks 
        !            17: connections to other servers in the cluster, and includes excerpts from various logs, as well as machine information.
        !            18: \item Apache Status Page - information from the Apache web server about its current status
        !            19: \item LON-CAPA Module Versions - a list of currently installed LON-CAPA perl modules, including version information.
        !            20: \item Domain status - information about the status of LON-CAPA daemons for servers in the domain.
        !            21: \item Show user environment - Information about the current user's session environment.
        !            22: \end{itemize}
        !            23: 
        !            24: \item There are three pages which can be used to perform server actions:
        !            25: 
        !            26: \begin{itemize}
        !            27: \item Generate Detailed Report - run the loncron command which checks connection to other servers and creates a new version of the detailed server status report.
        !            28: \item Offline: replace Log-in page - replace the standard LON-CAPA index.html page at the
        !            29: Document Root with a temporary page announcing unavailability of LON-CAPA service on that particular server. It is strongly recommended that access to the corresponding ``Online - restore Log-in'' page is set to allow access from your IP address so that you can visit that page to re-enable the standard index.html page (e.g., when maintenance is complete) if you use the Offline page to replace it.  
        !            30: \item Online: restore Log-in page - replace the temporary index.html page with the standard index.html (which redirects to /adm/roles -- which will display the log-in page unless the
        !            31: requestor's browser has an unexpired LON-CAPA session cookie).
        !            32: \end{itemize}
        !            33: 
        !            34: \item There are two pages which can be used to display Metadata keyword information for searches in the domain.
        !            35: 
        !            36: \begin{itemize}
        !            37: \item Display Metadata Keywords
        !            38: \item Harvest Metadata Searches
        !            39: \end{itemize}
        !            40: 
        !            41: \end{itemize}
        !            42: 
        !            43: One final setting is for ``Toggle debug messages''. This controls whether a user's ``Set my user preferences'' page  will include a ``Toggle Debug Messages'' link which can be used to set display of debugging messages in LON-CAPA either on or off. 
        !            44: