Within this directory there are a variety of files which govern the scope of what a user can do within the LON-CAPA system. A passwd file determines the type of authentication mechanism to use. There is also are files such as roles.hist (and its database compilation, roles.db) which specify the roles and privileges for a user in the LON-CAPA system. RedHat 6.2 home/httpd/html/lon-status server standard status reports RedHat 6.2 usr/lib/perl5/site_perl/5.005 standard system perl tree (usually present on linux systems) RedHat 6.2 home/httpd/html/adm/MathML server readonly mathematics markup language resources RedHat 6.2 home/httpd/html/res/adm/includes server readonly files useful for including within customized scripting RedHat 6.2 home/httpd/html/lon-status server standard status reports RedHat 6.2 home/httpd/html/res/adm/pages server readonly web user interface resources RedHat 6.2 home/httpd/html/res/adm/pages/bookmarkmenu server readonly bookmark user interface code RedHat 6.2 home/httpd/html/res/adm/pages/annotations server readonly RedHat 6.2 usr/sbin standard standard linux directory for superuser executables RedHat 6.2 etc/cron.d standard standard linux directory for running time-based "jobs" RedHat 6.2 etc/ntp standard configuration directory for network time protocol RedHat 6.2 etc/rc.d/init.d standard scripts that run during system startup RedHat 6.2 etc/rc.d/rc0.d standard scripts that run for run-level 0 RedHat 6.2 etc/rc.d/rc1.d standard scripts that run for run-level 1 RedHat 6.2 etc/rc.d/rc2.d standard scripts that run for run-level 2 RedHat 6.2 etc/rc.d/rc3.d standard scripts that run for run-level 3 RedHat 6.2 etc/rc.d/rc4.d standard scripts that run for run-level 4 RedHat 6.2 etc/rc.d/rc5.d standard scripts that run for run-level 5 RedHat 6.2 etc/rc.d/rc6.d standard scripts that run for run-level 6 RedHat 6.2 etc/rc.d/rc7.d standard scripts that run for run-level 7 RedHat 6.2 etc/atalk standard appletalk configuration files RedHat 6.2 home/httpd/html/res/adm/pages/indexericons server readonly icons that help depict the file system RedHat 6.2 loncom/access.conf etc/httpd/conf/access.conf conf This file has two major functions. For the Apache web server, it defines a global access configuration which defines what server options (Indexes", "Includes", "FollowSymLinks", "ExecCGI", or "MultiViews") are associated with specific directories ("/", "/home/httpd/html", "/home/httpd/cgi-bin", and "/usr/doc"). For the LON-CAPA network server and perl module handlers, it defines machine specific settings (lonHostID, lonRole, lonAdmEMail, lonDefDomain, lonLoadLim, lonExpire, and lonReceipt) and internal machine settings for specific directories, socket ports, and browser detection logic. RedHat 6.2 configure

lonHostID	LON-internal HostID of this machine
lonRole	Role of this machine: library, access
lonAdmEMail	Server Administration
lonDefDomain	Default domain
lonLoadLim	Load Limit ( 100% loadavg )
lonExpire	Expiration for local copies in seconds

loncom/httpd.conf etc/httpd/conf/httpd.conf static conf This is the main server configuration file. The settings here are more or less standard for the Apache web server. Most notably (and importantly!), perl handling and mod_perl are enabled in this configuration file. RedHat 6.2 loncom/srm.conf etc/httpd/conf/srm.conf static conf

This file configures the "name space" of the Apache web server. srm.conf defines when specific perl modules should be called to handle a given request. This definition is a function of both the name of the perl module, and a specific regular expression associated with the URL, such as "^/res/.*\.page".

Here is an example entry:

<LocationMatch "^/res/.*\.page$>
SetHandler perl-script
PerlHandler Apache::lonpage
</LocationMatch>