| File(s) | Type | Function | Install |
| /etc/httpd/conf | |||
| access.conf | conf | define handlers, set parameters | configure machine name, machine function, domain, server admin |
| startup.pl | conf | set paths to modules | |
| /home/httpd/lonTabs | dir | LON-CAPA Tables | new, www-readable |
| hosts.tab | conf | List of all machines in the network with function | www-readable |
| spare.tab | conf | Spare hosts to offload session to if this machine overloaded | configure, www-readable |
| htpasswd | conf | Basic auth password to access /lon-status and /server-status | |
| /etc | |||
| krb.conf | conf | which Kerberos server to contact for which Kerberos domains | configure |
| /home/httpd/perl | dir | Communication | new |
| lonc | perl program | proxy server | www-executable |
| lond | perl program | remote command interpreter | www-executable |
| loncron | perl program | housekeeping | www-executable |
| /home/httpd/perl/logs | dir | logs and pids of lonc, lond and lonnet.pm | new, empty, www-writeable |
| /home/httpd/lib/perl/Apache | dir | handlers | new |
| lonacc.pm | handler | access to res | |
| lonracc.pm | handler | access to raw | |
| loncacc.pm | handler | access to construction space | |
| lonauth.pm | handler | authenticate, set up session environment | |
| lonlogin.pm | handler | login screen | |
| lonrep.pm | handler | replication | |
| lonproblem.pm | handler | assessments | |
| lonroles.pm | handler | roles picking | |
| lonindexer.pm | handler | cross server filesystem browser | |
| lonnet.pm | handler | interface to lonc | |
| /home/httpd/lonIDs | dir | cookie jar | new, empty, www-writeable |
| /home/httpd/sockets | dir | lonc's sockets | new, empty, www-writeable |
| /home/httpd/html | |||
| index.html | files | bumps to login | |
| raw | symbolic link | symbolic link to /home/httpd/html/res | |
| /home/httpd/html/res | dir | root of resource tree | new, empty, www-writeable |
| /home/httpd/html/adm | dir | unauthenticated resources | new |
| notfound.html, unauthorized.html | files | static html pages | |
| /home/httpd/html/adm/rat | dir | home of the rat | |
| rat.html | file | frameset | |
| code.html | file | javascript | |
| map.html | file | bumper | |
| *.gif | files | images for rat | |
| /home/httpd/html/adm/lonIcons | dir | new | |
| *.gif | files | logos | |
| /home/httpd/lonUsers | dir | home dirs of local users | new, empty, www-writeable |
| /home/httpd/html/lon-status | dir | dir for status reports | new, empty, www-writeable |