Annotation of doc/loncapafiles/loncapafiles.html, revision 1.2

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                      8: <H1>LON-CAPA Files and Directories</H1>
1.2     ! harris41    9: <BR>Scott Harrison, September 2000
1.1       harris41   10: <BR>Gerd Kortemeyer, Spring-Summer 2000
                     11: <P>
                     12: Note: these files only refer to 
                     13: <UL>
                     14: <LI>those directly associated
                     15: with the network communication layer established through
                     16: direct server-to-server communications (via lond and lonc)
1.2     ! harris41   17: <LI>those which configure (but otherwise not constitute) external software packages
1.1       harris41   18: like <TT>Apache</TT> and <TT>Athena-Kerberos</TT>.
                     19: </UL>
                     20: and, these files
                     21: <UL>
                     22: <LI>are all owned by user=www, group=users
                     23: <LI>all represent their install-time configurations
                     24: (for instance, some directories start out as empty)
                     25: <LI>are all ONLY under the read-write (and sometimes execute) privileges of user=www (-rwx------)
1.2     ! harris41   26: <LI>unless otherwise specified, lists are separated by newlines (and subelements are separated with colons ':')
1.1       harris41   27: </UL>
                     28: 
                     29: <TABLE BORDER="1" CELLPADDING=5 WIDTH=60%>
                     30:   <TR>
                     31:     <TD WIDTH="39%" COLSPAN=2><B><FONT SIZE="+1">Files & Directories</FONT></B></TD>
                     32:     <TD WIDTH="12%"><B><FONT SIZE="+1">Type</FONT></B></TD> 
                     33:     <TD WIDTH="23%"><B><FONT SIZE="+1">Function</FONT></B></TD> 
                     34:     <TD WIDTH="26%"><B><FONT SIZE="+1">Install</FONT></B></TD> 
                     35:   </TR>
                     36:   <TR BGCOLOR="#000000">
                     37:     <TD COLSPAN="3"><FONT SIZE=+1 COLOR="#80FF80"><IMG SRC="directory.gif" ALT="directory"> DIRECTORY -- /etc/httpd/conf</FONT></TD>
                     38:     <TD COLSPAN="2"><FONT COLOR="#80FF80">&nbsp;</FONT></TD>
                     39:   </TR>
                     40:   <TR BGCOLOR="#80FF80">
                     41:     <TD WIDTH="4%" BGCOLOR="#A0A0A0"><IMG SRC="configurable.gif" ALT="configurable"></TD> 
                     42:     <TD WIDTH="35%">access.conf</TD> 
                     43:     <TD WIDTH="12%">conf</TD> 
1.2     ! harris41   44:     <TD WIDTH="23%">define handlers, set parameters</TD> 
        !            45:     <TD WIDTH="26%"><B>configure</B>
        !            46: <BR>
        !            47: <TABLE CELLPADDING=0 CELLSPACING=0 BORDER=1>
        !            48: <TR><TD><TT>lonHostID</TT></TD><TD>LON-internal HostID of this machine</TD></TR>
        !            49: <TR><TD><TT>lonRole</TT></TD><TD>Role of this machine: library, access</TD></TR>
        !            50: <TR><TD><TT>lonAdmEMail</TT></TD><TD>Server Administration</TD></TR>
        !            51: <TR><TD><TT>lonDefDomain</TT></TD><TD>Default domain</TD></TR>
        !            52: <TR><TD><TT>lonLoadLim</TT></TD><TD>Load Limit ( 100% loadavg )</TD></TR>
        !            53: <TR><TD><TT>lonExpire</TT></TD><TD>Expiration for local copies in seconds</TD></TR>
        !            54: </TABLE>
1.1       harris41   55:   </TR>
                     56:   <TR BGCOLOR="#80FF80">
1.2     ! harris41   57:     <TD WIDTH="4%" BGCOLOR="#A0A0A0"><IMG SRC="static.gif" ALT="configurable"></TD> 
1.1       harris41   58:     <TD WIDTH="35%">httpd.conf</TD> 
1.2     ! harris41   59:     <TD WIDTH="12%">static conf</TD> 
        !            60:     <TD WIDTH="23%">main server configuration file</TD> 
1.1       harris41   61:     <TD WIDTH="26%">&nbsp;</TD>
                     62:   </TR>
                     63:   <TR BGCOLOR="#80FF80">
1.2     ! harris41   64:     <TD WIDTH="4%" BGCOLOR="#A0A0A0"><IMG SRC="static.gif" ALT="configurable"></TD> 
1.1       harris41   65:     <TD WIDTH="35%">srm.conf</TD> 
1.2     ! harris41   66:     <TD WIDTH="12%">static conf</TD> 
        !            67:     <TD WIDTH="23%">name space configuration</TD> 
1.1       harris41   68:     <TD WIDTH="26%">&nbsp;</TD>
                     69:   </TR>
                     70:   <TR>
                     71:     <TD WIDTH="4%" BGCOLOR="#A0A0A0"><IMG SRC="static.gif" ALT="configurable"></TD> 
                     72:     <TD WIDTH="35%" BGCOLOR="#80ff80">startup.pl</TD> 
                     73:     <TD WIDTH="12%" BGCOLOR="#80ff80">static conf</TD> 
1.2     ! harris41   74:     <TD WIDTH="23%" BGCOLOR="#80ff80">set paths to modules; invoked by <TT>access.conf</TT></TD> 
1.1       harris41   75:     <TD WIDTH="26%" BGCOLOR="#80ff80">&nbsp;</TD>
                     76:   </TR>
                     77:   <TR BGCOLOR="#000000">
                     78:     <TD COLSPAN=3><FONT COLOR="80FFFF" SIZE=+1><IMG SRC="directory.gif" ALT="directory"> DIRECTORY -- /home/httpd/lonTabs</FONT></TD>
                     79:     <TD COLSPAN=2><FONT COLOR="#80FFFF">LON-CAPA Tables</FONT></TD>
                     80:   </TR>
                     81:   <TR BGCOLOR="#80FFFF">
                     82:     <TD WIDTH="4%" BGCOLOR="#A0A0A0"><IMG SRC="static.gif" ALT="static"></TD> 
                     83:     <TD WIDTH="35%">filetypes.tab</TD> 
                     84:     <TD WIDTH="12%">static conf</TD> 
1.2     ! harris41   85:     <TD WIDTH="23%">Descriptive list of file extensions, and extension groupings</TD> 
        !            86:     <TD WIDTH="26%">&nbsp;</TD>
1.1       harris41   87:   </TR>
                     88:   <TR BGCOLOR="#80FFFF">
                     89:     <TD WIDTH="4%" BGCOLOR="#A0A0A0"><IMG SRC="static.gif" ALT="static"></TD> 
                     90:     <TD WIDTH="35%">roles.tab</TD> 
                     91:     <TD WIDTH="12%">static conf</TD> 
1.2     ! harris41   92:     <TD WIDTH="23%">List of privileges associated with users of multiple types (for example: Teaching Assistant, Exam Proctor, Course Coordinator)</TD> 
        !            93:     <TD WIDTH="26%">&nbsp;</TD>
1.1       harris41   94:   </TR>
                     95:   <TR BGCOLOR="#80FFFF">
                     96:     <TD WIDTH="4%" BGCOLOR="#A0A0A0"><IMG SRC="static.gif" ALT="static"></TD> 
                     97:     <TD WIDTH="35%">rolesplain.tab</TD> 
                     98:     <TD WIDTH="12%">static conf</TD> 
1.2     ! harris41   99:     <TD WIDTH="23%">Descriptive list of abbreviations used in <TT>roles.tab</TT> for user types and privileges available
1.1       harris41  100:       in the network with function</TD> 
1.2     ! harris41  101:     <TD WIDTH="26%">&nbsp;</TD>
1.1       harris41  102:   </TR>
                    103:   <TR BGCOLOR="#80FFFF">
                    104:     <TD WIDTH="4%" BGCOLOR="#A0A0A0"><IMG SRC="static.gif" ALT="static"></TD> 
                    105:     <TD WIDTH="35%">hosts.tab</TD> 
                    106:     <TD WIDTH="12%">static conf</TD> 
1.2     ! harris41  107:     <TD WIDTH="23%">List of all machines in the LON-CAPA network.  Relates <TT>lonHostID</TT> to <TT>lonDefDomain</TT> and <U>IP address</U></TD> 
        !           108:     <TD WIDTH="26%">&nbsp;</TD>
1.1       harris41  109:   </TR>
                    110:   <TR BGCOLOR="80FFFF">
                    111:     <TD WIDTH="4%" BGCOLOR="#A0A0A0"><IMG SRC="configurable.gif" ALT="configurable"></TD> 
                    112:     <TD WIDTH="35%">spare.tab</TD> 
                    113:     <TD WIDTH="12%">conf</TD> 
                    114:     <TD WIDTH="23%">Spare hosts to
1.2     ! harris41  115:       offload session to if the LON-CAPA machine is overloaded</TD> 
        !           116:     <TD WIDTH="26%">
        !           117: <B>configure</B><BR>
        !           118: <TABLE CELLPADDING=0 CELLSPACING=0 BORDER=1>
        !           119: <TR><TD>
        !           120: list elements are separated by newlines
        !           121: </TD></TR>
        !           122: <TR><TD>
        !           123: each list element consists of only one value; the value for <TT>lonHostID</TT> in <TT>access.conf</TT>
        !           124: </TD></TR>
        !           125: </TABLE>
        !           126: </TD>
1.1       harris41  127:   </TR>
                    128:   <TR BGCOLOR="#80FFFF">
                    129:     <TD WIDTH="4%" BGCOLOR="#A0A0A0"><IMG SRC="static.gif" ALT="static"></TD>
                    130:     <TD WIDTH="35%">htpasswd</TD>
                    131:     <TD WIDTH="12%">static conf</TD>
                    132:     <TD WIDTH="23%">Basic auth
                    133:       password to access /lon-status and /server-status</TD> 
                    134:     <TD WIDTH="26%">&nbsp;</TD>
                    135:   </TR>
                    136:   <TR BGCOLOR="#000000">
                    137:     <TD COLSPAN="3"><FONT COLOR="#FFFF80" SIZE=+1><IMG SRC="directory.gif" ALT="directory"> DIRECTORY -- /etc</FONT></TD> 
                    138:     <TD COLSPAN="2"><FONT COLOR="#80FF80">&nbsp;</FONT></TD>
                    139:   </TR>
                    140:   <TR BGCOLOR="#FFFF80">
                    141:     <TD WIDTH="4%" BGCOLOR="#A0A0A0"><IMG SRC="configurable.gif" ALT="configurable"></TD> 
                    142:     <TD WIDTH="35%">krb.conf</TD> 
                    143:     <TD WIDTH="12%">conf</TD> 
                    144:     <TD WIDTH="23%">which Kerberos
                    145:       server to contact for which Kerberos domains</TD> 
1.2     ! harris41  146:     <TD WIDTH="26%"><B>configure</B><BR>
        !           147: <TABLE CELLPADDING=0 CELLSPACING=0 BORDER=1>
        !           148: <TR><TD>
        !           149: list elements are separated by newlines
        !           150: </TD></TR>
        !           151: <TR><TD>
        !           152: each list element consists of only two subelements separated by a colon
        !           153: <BR>
        !           154: <UL>
        !           155: <LI>Kerberos domain value
        !           156: <LI>Kerberos server IP address
        !           157: </UL>
        !           158: </TD></TR>
        !           159: </TABLE>
        !           160: </TD>
1.1       harris41  161:   </TR>
                    162:   <TR BGCOLOR="#000000">
                    163:     <TD COLSPAN=3><FONT COLOR="#80ff80" SIZE=+1><IMG SRC="directory.gif" ALT="directory"> DIRECTORY -- /home/httpd/perl</TD>
                    164:     <TD COLSPAN=2><FONT COLOR="#80ff80">Communication</TD>
                    165:   </TR>
                    166:   <TR BGCOLOR="#80FF80">
                    167:     <TD WIDTH="4%" BGCOLOR="#A0A0A0"><IMG SRC="script.gif" ALT="script"></TD> 
                    168:     <TD WIDTH="35%">lonc</TD>
                    169:     <TD WIDTH="12%">script</TD>
                    170:     <TD WIDTH="23%">proxy server</TD>
1.2     ! harris41  171:     <TD WIDTH="26%">&nbsp;</TD>
1.1       harris41  172:   </TR>
                    173:   <TR BGCOLOR="#80FF80">
                    174:     <TD WIDTH="4%" BGCOLOR="#A0A0A0"><IMG SRC="script.gif" ALT="script"></TD> 
                    175:     <TD WIDTH="35%">lond</TD>
                    176:     <TD WIDTH="12%">script</TD>
                    177:     <TD WIDTH="23%">remote command
                    178:       interpreter</TD>
1.2     ! harris41  179:     <TD WIDTH="26%">&nbsp;</TD>
1.1       harris41  180:   </TR>
                    181:   <TR BGCOLOR="#80FF80">
                    182:     <TD WIDTH="4%" BGCOLOR="#A0A0A0"><IMG SRC="script.gif" ALT="script"></TD> 
                    183:     <TD WIDTH="35%">loncron</TD>
                    184:     <TD WIDTH="12%">script</TD>
                    185:     <TD WIDTH="23%">housekeeping</TD>
1.2     ! harris41  186:     <TD WIDTH="26%">&nbsp;</TD>
1.1       harris41  187:   </TR>
                    188:   <TR BGCOLOR="#80FF80">
                    189:     <TD WIDTH="4%" BGCOLOR="#A0A0A0"><IMG SRC="script.gif" ALT="script"></TD> 
                    190:     <TD WIDTH="35%">lonsql</TD>
                    191:     <TD WIDTH="12%">script</TD>
1.2     ! harris41  192:     <TD WIDTH="23%">maintain secondary database of metadata</TD>
        !           193:     <TD WIDTH="26%">&nbsp;</TD>
1.1       harris41  194:   </TR>
                    195:   <TR BGCOLOR="#000000">
                    196:     <TD COLSPAN=3><IMG SRC="emptydirectory.gif" ALT="empty directory"> <FONT COLOR="#80FFFF" SIZE=+1> EMPTY DIRECTORY -- /home/httpd/perl/logs</FONT></TD>
                    197:     <TD COLSPAN=2><FONT COLOR="#80FFFF">logs and pids of lonc, lond and lonnet.pm</FONT></TD>
                    198:   </TR>
                    199:   <TR BGCOLOR="#000000">
                    200:     <TD COLSPAN=3><IMG SRC="emptydirectory.gif" ALT="empty directory"> <FONT COLOR="#80FFFF" SIZE=+1> EMPTY DIRECTORY -- /home/httpd/perl/tmp</FONT></TD>
                    201:     <TD COLSPAN=2><FONT COLOR="#80FFFF">logs and pids of lonc, lond and lonnet.pm</FONT></TD>
                    202:   </TR>
                    203:   <TR BGCOLOR="#000000">
                    204:     <TD COLSPAN=3><IMG SRC="directory.gif" ALT="directory"> <FONT COLOR="#FFFF80" SIZE=+1>DIRECTORY -- /home/httpd/lib/perl/Apache</FONT></TD>
                    205:     <TD COLSPAN=2><FONT COLOR="#FFFF80">handlers</FONT></TD>
                    206:   </TR>
                    207:   <TR BGCOLOR="#FFFF80">
                    208:     <TD WIDTH="4%" BGCOLOR="#A0A0A0"><IMG SRC="handler.gif" ALT="handler.gif"></TD> 
                    209:     <TD WIDTH="35%">lonxml.pm</TD>
                    210:     <TD WIDTH="12%">handler</TD>
1.2     ! harris41  211:     <TD WIDTH="23%">XML Parsing Module</TD>
1.1       harris41  212:     <TD WIDTH="26%">&nbsp;</TD>
                    213:   </TR>
                    214:   <TR BGCOLOR="#FFFF80">
                    215:     <TD WIDTH="4%" BGCOLOR="#A0A0A0"><IMG SRC="handler.gif" ALT="handler.gif"></TD> 
                    216:     <TD WIDTH="35%">style.pm</TD>
                    217:     <TD WIDTH="12%">handler</TD>
1.2     ! harris41  218:     <TD WIDTH="23%">Style Parsing Module</TD>
1.1       harris41  219:     <TD WIDTH="26%">&nbsp;</TD>
                    220:   </TR>
                    221:   <TR BGCOLOR="#FFFF80">
                    222:     <TD WIDTH="4%" BGCOLOR="#A0A0A0"><IMG SRC="handler.gif" ALT="handler.gif"></TD> 
                    223:     <TD WIDTH="35%">londefdef.pm</TD>
                    224:     <TD WIDTH="12%">handler</TD>
1.2     ! harris41  225:     <TD WIDTH="23%">Tags Default Definition Module</TD>
1.1       harris41  226:     <TD WIDTH="26%">&nbsp;</TD>
                    227:   </TR>
                    228:   <TR BGCOLOR="#FFFF80">
                    229:     <TD WIDTH="4%" BGCOLOR="#A0A0A0"><IMG SRC="handler.gif" ALT="handler.gif"></TD> 
                    230:     <TD WIDTH="35%">run.pm</TD>
                    231:     <TD WIDTH="12%">handler</TD>
1.2     ! harris41  232:     <TD WIDTH="23%">evaluates expression within a memory-safe environment (to protect system from break-in attempts)</TD>
1.1       harris41  233:     <TD WIDTH="26%">&nbsp;</TD>
                    234:   </TR>
                    235:   <TR BGCOLOR="#FFFF80">
                    236:     <TD WIDTH="4%" BGCOLOR="#A0A0A0"><IMG SRC="handler.gif" ALT="handler.gif"></TD> 
                    237:     <TD WIDTH="35%">scripttag.pm</TD>
                    238:     <TD WIDTH="12%">handler</TD>
1.2     ! harris41  239:     <TD WIDTH="23%">parse and evaluate contents of values within a &lt;script&gt; tag (this module invokes <TT>run.pm</TT>)</TD>
1.1       harris41  240:     <TD WIDTH="26%">&nbsp;</TD>
                    241:   </TR>
                    242:   <TR BGCOLOR="#FFFF80">
                    243:     <TD WIDTH="4%" BGCOLOR="#A0A0A0"><IMG SRC="handler.gif" ALT="handler.gif"></TD> 
                    244:     <TD WIDTH="35%">lonhomework.pm</TD>
                    245:     <TD WIDTH="12%">handler</TD>
1.2     ! harris41  246:     <TD WIDTH="23%">handles requests for output, evaluation, and alteration of homework resource</TD>
1.1       harris41  247:     <TD WIDTH="26%">&nbsp;</TD>
                    248:   </TR>
                    249:   <TR BGCOLOR="#FFFF80">
                    250:     <TD WIDTH="4%" BGCOLOR="#A0A0A0"><IMG SRC="handler.gif" ALT="handler.gif"></TD> 
                    251:     <TD WIDTH="35%">inputtags.pm</TD>
                    252:     <TD WIDTH="12%">handler</TD>
1.2     ! harris41  253:     <TD WIDTH="23%">produces HTML input tags (&lt;INPUT&gt;) for rendering homework resources</TD>
1.1       harris41  254:     <TD WIDTH="26%">&nbsp;</TD>
                    255:   </TR>
                    256:   <TR BGCOLOR="#FFFF80">
                    257:     <TD WIDTH="4%" BGCOLOR="#A0A0A0"><IMG SRC="handler.gif" ALT="handler.gif"></TD> 
                    258:     <TD WIDTH="35%">structuretags.pm</TD>
                    259:     <TD WIDTH="12%">handler</TD>
1.2     ! harris41  260:     <TD WIDTH="23%">produces HTML tags necessary for structuring the presentation of homework resourcese</TD>
1.1       harris41  261:     <TD WIDTH="26%">&nbsp;</TD>
                    262:   </TR>
                    263:   <TR BGCOLOR="#FFFF80">
                    264:     <TD WIDTH="4%" BGCOLOR="#A0A0A0"><IMG SRC="handler.gif" ALT="handler.gif"></TD> 
                    265:     <TD WIDTH="35%">response.pm</TD>
                    266:     <TD WIDTH="12%">handler</TD>
1.2     ! harris41  267:     <TD WIDTH="23%">defines different types of responses given to student as well as syntax for producing response values</TD>
1.1       harris41  268:     <TD WIDTH="26%">&nbsp;</TD>
                    269:   </TR>
                    270:   <TR BGCOLOR="#FFFF80">
                    271:     <TD WIDTH="4%" BGCOLOR="#A0A0A0"><IMG SRC="handler.gif" ALT="handler.gif"></TD> 
                    272:     <TD WIDTH="35%">caparesponse.pm</TD>
                    273:     <TD WIDTH="12%">handler</TD>
1.2     ! harris41  274:     <TD WIDTH="23%">handles request to the CAPA homework processing engine</TD>
1.1       harris41  275:     <TD WIDTH="26%">&nbsp;</TD>
                    276:   </TR>
                    277:   <TR BGCOLOR="#FFFF80">
                    278:     <TD WIDTH="4%" BGCOLOR="#A0A0A0"><IMG SRC="handler.gif" ALT="handler.gif"></TD> 
                    279:     <TD WIDTH="35%">lonacc.pm</TD>
                    280:     <TD WIDTH="12%">handler</TD>
1.2     ! harris41  281:     <TD WIDTH="23%">access to for a LON-CAPA user session</TD>
1.1       harris41  282:     <TD WIDTH="26%">&nbsp;</TD>
                    283:   </TR>
                    284:   <TR BGCOLOR="#FFFF80">
                    285:     <TD WIDTH="4%" BGCOLOR="#A0A0A0"><IMG SRC="handler.gif" ALT="handler.gif"></TD> 
                    286:     <TD WIDTH="35%">lonracc.pm</TD>
                    287:     <TD WIDTH="12%">handler</TD>
1.2     ! harris41  288:     <TD WIDTH="23%">access handler for file transfers</TD>
1.1       harris41  289:     <TD WIDTH="26%">&nbsp;</TD>
                    290:   </TR>
                    291:   <TR BGCOLOR="#FFFF80">
                    292:     <TD WIDTH="4%" BGCOLOR="#A0A0A0"><IMG SRC="handler.gif" ALT="handler.gif"></TD> 
                    293:     <TD WIDTH="35%">loncacc.pm</TD>
                    294:     <TD WIDTH="12%">handler</TD>
1.2     ! harris41  295:     <TD WIDTH="23%">access to construction area</TD>
1.1       harris41  296:     <TD WIDTH="26%">&nbsp;</TD>
                    297:   </TR>
                    298:   <TR BGCOLOR="#FFFF80">
                    299:     <TD WIDTH="4%" BGCOLOR="#A0A0A0"><IMG SRC="handler.gif" ALT="handler.gif"></TD> 
                    300:     <TD WIDTH="35%">lonauth.pm</TD>
                    301:     <TD WIDTH="12%">handler</TD>
1.2     ! harris41  302:     <TD WIDTH="23%">authenticate, set up session environment</TD>
1.1       harris41  303:     <TD WIDTH="26%">&nbsp;</TD>
                    304:   </TR>
                    305:   <TR BGCOLOR="#FFFF80">
                    306:     <TD WIDTH="4%" BGCOLOR="#A0A0A0"><IMG SRC="handler.gif" ALT="handler.gif"></TD> 
                    307:     <TD WIDTH="35%">lonlogin.pm</TD>
                    308:     <TD WIDTH="12%">handler</TD>
                    309:     <TD WIDTH="23%">login screen</TD>
                    310:     <TD WIDTH="26%">&nbsp;</TD>
                    311:   </TR>
                    312:   <TR BGCOLOR="#FFFF80">
                    313:     <TD WIDTH="4%" BGCOLOR="#A0A0A0"><IMG SRC="handler.gif" ALT="handler.gif"></TD> 
                    314:     <TD WIDTH="35%">lonrep.pm</TD>
                    315:     <TD WIDTH="12%">handler</TD>
                    316:     <TD WIDTH="23%">replication</TD>
                    317:     <TD WIDTH="26%">&nbsp;</TD>
                    318:   </TR>
                    319:   <TR BGCOLOR="#FFFF80">
                    320:     <TD WIDTH="4%" BGCOLOR="#A0A0A0"><IMG SRC="handler.gif" ALT="handler.gif"></TD> 
                    321:     <TD WIDTH="35%">lonproblem.pm</TD>
                    322:     <TD WIDTH="12%">handler</TD>
                    323:     <TD WIDTH="23%">assessments</TD>
                    324:     <TD WIDTH="26%">&nbsp;</TD>
                    325:   </TR>
                    326:   <TR BGCOLOR="#FFFF80">
                    327:     <TD WIDTH="4%" BGCOLOR="#A0A0A0"><IMG SRC="handler.gif" ALT="handler.gif"></TD> 
                    328:     <TD WIDTH="35%">lonroles.pm</TD>
                    329:     <TD WIDTH="12%">handler</TD>
                    330:     <TD WIDTH="23%">roles picking</TD>
                    331:     <TD WIDTH="26%">&nbsp;</TD>
                    332:   </TR>
                    333:   <TR BGCOLOR="#FFFF80">
                    334:     <TD WIDTH="4%" BGCOLOR="#A0A0A0"><IMG SRC="handler.gif" ALT="handler.gif"></TD> 
                    335:     <TD WIDTH="35%">lonindexer.pm</TD>
                    336:     <TD WIDTH="12%">handler</TD>
                    337:     <TD WIDTH="23%">cross server
                    338:       filesystem browser</TD>
                    339:     <TD WIDTH="26%">&nbsp;</TD>
                    340:   </TR>
                    341:   <TR BGCOLOR="#FFFF80">
                    342:     <TD WIDTH="4%" BGCOLOR="#A0A0A0"><IMG SRC="handler.gif" ALT="handler.gif"></TD> 
                    343:     <TD WIDTH="35%">lonnet.pm</TD>
                    344:     <TD WIDTH="12%">handler</TD>
                    345:     <TD WIDTH="23%">interface
                    346:       to lonc</TD>
                    347:     <TD WIDTH="26%">&nbsp;</TD>
                    348:   </TR>
                    349:   <TR BGCOLOR="#000000">
                    350:     <TD COLSPAN=3><FONT COLOR="#80FF80" SIZE=+1><IMG SRC="emptydirectory.gif" ALT="empty directory"> EMPTY DIRECTORY -- /home/httpd/lonIDs</FONT></TD>
                    351:     <TD COLSPAN=2><FONT COLOR="#80FF80">cookie jar</FONT></TD>
                    352:   </TR>
                    353:   <TR BGCOLOR="#000000">
                    354:     <TD COLSPAN=3><FONT COLOR="#80FFFF" SIZE=+1><IMG SRC="emptydirectory.gif" ALT="empty directory">EMPTY DIRECTORY -- /home/httpd/sockets</FONT></TD>
                    355:     <TD COLSPAN=2><FONT COLOR="#80FFFF">lonc's sockets</FONT></TD>
                    356:   </TR>
                    357:   <TR BGCOLOR="#000000">
                    358:     <TD COLSPAN=3><FONT COLOR="#80FFFF" SIZE=+1><IMG SRC="emptydirectory.gif" ALT="empty directory">EMPTY DIRECTORY -- /home/httpd/sockets/delayed</FONT></TD>
                    359:     <TD COLSPAN=2><FONT COLOR="#80FFFF">lonc's sockets</FONT></TD>
                    360:   </TR>
                    361:   <TR BGCOLOR="#000000">
                    362:     <TD COLSPAN="3"><FONT COLOR="#FFFF80" SIZE=+1><IMG SRC="directory.gif" ALT="directory"> DIRECTORY -- /home/httpd/html</TD>
                    363:     <TD COLSPAN="2"><FONT COLOR="#FFFF80">&nbsp;</FONT>&nbsp;</TD>
                    364:   </TR>
                    365:   <TR BGCOLOR="#FFFF80">
                    366:     <TD WIDTH="4%" BGCOLOR="#A0A0A0"><IMG SRC="interfacefile.gif" ALT="interface file"></TD> 
                    367:     <TD WIDTH="35%">index.html</TD>
                    368:     <TD WIDTH="12%">interface file</TD>
                    369:     <TD WIDTH="23%">bumps to login</TD>
                    370:     <TD WIDTH="26%">&nbsp;</TD>
                    371:   </TR>
                    372:   <TR BGCOLOR="#FFFF80">
                    373:     <TD WIDTH="4%" BGCOLOR="#A0A0A0"><IMG SRC="link.gif" ALT="link"></TD> 
                    374:     <TD WIDTH="35%">raw</TD>
                    375:     <TD WIDTH="12%">symbolic link</TD>
                    376:     <TD WIDTH="23%">symbolic link to /home/httpd/html/res</TD>
                    377:     <TD WIDTH="26%">&nbsp;</TD>
                    378:   </TR>
                    379:   <TR BGCOLOR="#000000">
                    380:     <TD COLSPAN=3><IMG SRC="emptydirectory.gif" ALT="emptydirectory"> <FONT COLOR="#80FF80" SIZE=+1>EMPTY DIRECTORY -- /home/httpd/html/res</FONT></TD>
                    381:     <TD COLSPAN=2><FONT COLOR="#80FF80">root of resource tree</FONT></TD>
                    382:   </TR>
                    383:   <TR BGCOLOR="#000000">
                    384:     <TD COLSPAN=3><IMG SRC="directory.gif" ALT="directory"> <FONT COLOR="#80FFFF" SIZE=+1> DIRECTORY -- /home/httpd/html/adm</FONT></TD>
                    385:     <TD COLSPAN=2><FONT COLOR="#80FFFF">unauthenticated resources</FONT></TD>
                    386:   </TR>
                    387:   <TR BGCOLOR="#80FFFF">
                    388:     <TD WIDTH="4%" BGCOLOR="#A0A0A0"><IMG SRC="interfacefile.gif" ALT="interface file"></TD> 
                    389:     <TD WIDTH="35%">notfound.html</TD>
                    390:     <TD WIDTH="12%">interface file</TD>
1.2     ! harris41  391:     <TD WIDTH="23%">static html page that is shown when an attempt is made to access a document not present on the web server</TD>
1.1       harris41  392:     <TD WIDTH="26%">&nbsp;</TD>
                    393:   </TR>
                    394:   <TR BGCOLOR="#80FFFF">
                    395:     <TD WIDTH="4%" BGCOLOR="#A0A0A0"><IMG SRC="interfacefile.gif" ALT="interface file"></TD> 
                    396:     <TD WIDTH="35%">unauthorized.html</TD>
                    397:     <TD WIDTH="12%">interface file</TD>
1.2     ! harris41  398:     <TD WIDTH="23%">static html page that is shown when an attempt is made to access a document which is restricted based on
        !           399: file or server configurations</TD>
1.1       harris41  400:     <TD WIDTH="26%">&nbsp;</TD>
                    401:   </TR>
                    402:   <TR BGCOLOR="#000000">
                    403:     <TD COLSPAN="3"><FONT COLOR="#FFFF80" SIZE=+1><IMG SRC="directory.gif" ALT="directory"> DIRECTORY -- /home/httpd/html/adm/rat</TD>
                    404:     <TD COLSPAN="2"><FONT COLOR="#FFFF80">home of the rat</FONT></TD>
                    405:   </TR>
                    406:   <TR BGCOLOR="#FFFF80">
                    407:     <TD WIDTH="4%" BGCOLOR="#A0A0A0"><IMG SRC="interfacefile.gif" ALT="interface file"></TD> 
                    408:     <TD WIDTH="35%">rat.html</TD>
                    409:     <TD WIDTH="12%">interface file</TD>
                    410:     <TD WIDTH="23%">frameset</TD>
                    411:     <TD WIDTH="26%">&nbsp;</TD>
                    412:   </TR>
                    413:   <TR BGCOLOR="#FFFF80">
                    414:     <TD WIDTH="4%" BGCOLOR="#A0A0A0"><IMG SRC="interfacefile.gif" ALT="interface file"></TD> 
                    415:     <TD WIDTH="35%">code.html</TD>
                    416:     <TD WIDTH="12%">interface file</TD>
                    417:     <TD WIDTH="23%">javascript</TD>
                    418:     <TD WIDTH="26%">&nbsp;</TD>
                    419:   </TR>
                    420:   <TR BGCOLOR="#FFFF80">
                    421:     <TD WIDTH="4%" BGCOLOR="#A0A0A0"><IMG SRC="interfacefile.gif" ALT="interface file"></TD> 
                    422:     <TD WIDTH="35%">map.html</TD>
                    423:     <TD WIDTH="12%">interface file</TD>
                    424:     <TD WIDTH="23%">bumper</TD>
                    425:     <TD WIDTH="26%">&nbsp;</TD>
                    426:   </TR>
                    427:   <TR BGCOLOR="#FFFF80">
                    428:     <TD WIDTH="4%" BGCOLOR="#A0A0A0"><IMG SRC="graphicfile.gif" ALT="graphic file"></TD>
                    429:     <TD WIDTH="35%">*.gif</TD>
                    430:     <TD WIDTH="12%">graphic files</TD>
                    431:     <TD WIDTH="23%">images for
                    432:       rat</TD>
1.2     ! harris41  433:     <TD WIDTH="26%"><B>listing</B><BR>
        !           434: <FONT SIZE=-2>
1.1       harris41  435: 1.1.dt.gif
                    436: 1.1.empty.gif
                    437: 1.1.ld.gif
                    438: 1.1.lr.gif
                    439: 1.1.rd.gif
                    440: 1.1.rl.gif
                    441: 1.1.td.gif
                    442: 1.1.tdrl.gif
                    443: 1.1.tl.gif
                    444: 1.1.tr.gif
                    445: 1.1.utd.gif
                    446: 1.2.ctd.gif
                    447: 1.2.dt.gif
                    448: 1.2.empty.gif
                    449: 1.2.ld.gif
                    450: 1.2.lr.gif
                    451: 1.2.lrd.gif
                    452: 1.2.lrtd.gif
                    453: 1.2.rd.gif
                    454: 1.2.rl.gif
                    455: 1.2.rld.gif
                    456: 1.2.rltd.gif
                    457: 1.2.rtd.gif
                    458: 1.2.rtdl.gif
                    459: 1.2.rtl.gif
                    460: 1.2.td.gif
                    461: 1.2.tdl.gif
                    462: 1.2.tdrl.gif
                    463: 1.2.tl.gif
                    464: 1.2.tr.gif
                    465: 1.2.utd.gif
                    466: 2.1.dt.gif
                    467: 2.1.empty.gif
                    468: 2.1.ld.gif
                    469: 2.1.lr.gif
                    470: 2.1.rd.gif
                    471: 2.1.rl.gif
                    472: 2.1.td.gif
                    473: 2.1.tdrl.gif
                    474: 2.1.tl.gif
                    475: 2.1.tr.gif
                    476: 2.2.dt.gif
                    477: 2.2.empty.gif
                    478: 2.2.ld.gif
                    479: 2.2.lr.gif
                    480: 2.2.lrd.gif
                    481: 2.2.lrt.gif
                    482: 2.2.rd.gif
                    483: 2.2.rl.gif
                    484: 2.2.rld.gif
                    485: 2.2.rlt.gif
                    486: 2.2.td.gif
                    487: 2.2.tdl.gif
                    488: 2.2.tdr.gif
                    489: 2.2.tdrl.gif
                    490: 2.2.tl.gif
                    491: 2.2.tr.gif
                    492: 2.2.url.gif
                    493: 2.2.utd.gif
                    494: arrow.gif
                    495: bdt.gif
                    496: bempty.gif
                    497: bld.gif
                    498: blr.gif
                    499: blrd.gif
                    500: blrt.gif
                    501: brd.gif
                    502: brl.gif
                    503: brld.gif
                    504: brlt.gif
                    505: btd.gif
                    506: btdl.gif
                    507: btdr.gif
                    508: btdrl.gif
                    509: btl.gif
                    510: btr.gif
                    511: burl.gif
                    512: butd.gif
                    513: condition.gif
                    514: edit.gif
                    515: finish.gif
                    516: info.gif
                    517: inscol.gif
                    518: inscond.gif
                    519: insres.gif
                    520: insrow.gif
                    521: resource.gif
                    522: sctd.gif
                    523: sdt.gif
                    524: sempty.gif
                    525: sld.gif
                    526: slr.gif
                    527: slrd.gif
                    528: slrtd.gif
                    529: srd.gif
                    530: srl.gif
                    531: srld.gif
                    532: srltd.gif
                    533: srtd.gif
                    534: srtdl.gif
                    535: srtl.gif
                    536: start.gif
                    537: std.gif
                    538: stdl.gif
                    539: sutd.gif
                    540: </FONT>
                    541: </TD>
                    542:   </TR>
                    543:   <TR BGCOLOR="#000000">
                    544:     <TD COLSPAN=3><FONT COLOR="#80FF80" SIZE=+1><IMG SRC="directory.gif" ALT="directory"> DIRECTORY -- /home/httpd/html/adm/lonIcons</FONT></TD>
                    545:     <TD COLSPAN=2><FONT COLOR="#80FF80"></FONT>&nbsp;</TD>
                    546:   </TR>
                    547:   <TR BGCOLOR="#80FF80">
                    548:     <TD WIDTH="4%" BGCOLOR="#A0A0A0"><IMG SRC="graphicfile.gif" ALT="graphic file"></TD> 
                    549:     <TD WIDTH="35%">*.gif</TD>
                    550:     <TD WIDTH="12%">graphic files</TD>
                    551:     <TD WIDTH="23%">logos</TD>
1.2     ! harris41  552:     <TD WIDTH="26%">
        !           553: <B>listing</B><BR>
        !           554: <FONT SIZE=-2>
        !           555: liteani.gif
        !           556: logo.gif
        !           557: logos.gif
        !           558: </FONT></TD>
1.1       harris41  559:   </TR>
                    560:   <TR BGCOLOR="#000000">
                    561:     <TD COLSPAN=3><FONT COLOR="#80FFFF" SIZE=+1><IMG SRC="emptydirectory.gif" ALT="empty directory"> EMPTY DIRECTORY -- /home/httpd/lonUsers</FONT></TD>
                    562:     <TD COLSPAN=2><FONT COLOR="#80ffff">home dirs of local users</FONT></TD>
                    563:   </TR>
                    564:   <TR BGCOLOR="#000000">
                    565:     <TD COLSPAN=3><IMG SRC="emptydirectory.gif" ALT="emptydirectory"> <FONT COLOR="#FFFF80" SIZE=+1>EMPTY DIRECTORY -- /home/httpd/html/lon-status</TD> 
                    566:     <TD COLSPAN=2><FONT COLOR="#FFFF80">status reports</TD>
                    567:   </TR>
                    568:   <TR BGCOLOR="#000000">
                    569:     <TD COLSPAN=3><FONT COLOR="#80FF80" SIZE=+1><IMG SRC="directory.gif" ALT="directory"> DIRECTORY -- /usr/lib/perl5/site_perl/5.005</FONT></TD>
                    570:     <TD COLSPAN=2><FONT COLOR="#80FF80"></FONT>&nbsp;</TD>
                    571:   </TR>
                    572:   <TR BGCOLOR="#80FF80">
                    573:     <TD WIDTH="4%" BGCOLOR="#A0A0A0"><IMG SRC="systemfile.gif" ALT="system file"></TD>
                    574:     <TD WIDTH="35%">capa.pm</TD>
                    575:     <TD WIDTH="12%">system file</TD>
1.2     ! harris41  576:     <TD WIDTH="23%">perl module for invoking functions specific to CAPA</TD>
1.1       harris41  577:     <TD WIDTH="26%">&nbsp;</TD>
                    578:   </TR>
                    579:   <TR BGCOLOR="#80FF80">
                    580:     <TD WIDTH="4%" BGCOLOR="#A0A0A0"><IMG SRC="systemfile.gif" ALT="system file"></TD> 
                    581:     <TD WIDTH="35%">capa.bs</TD>
                    582:     <TD WIDTH="12%">system file</TD>
1.2     ! harris41  583:     <TD WIDTH="23%">bootstrap file associated with dynamic loading of this module on multiple architectures</TD>
1.1       harris41  584:     <TD WIDTH="26%">&nbsp;</TD>
                    585:   </TR>
                    586:   <TR BGCOLOR="#80FF80">
                    587:     <TD WIDTH="4%" BGCOLOR="#A0A0A0"><IMG SRC="systemfile.gif" ALT="system file"></TD> 
                    588:     <TD WIDTH="35%">capa.so</TD>
                    589:     <TD WIDTH="12%">system file</TD>
1.2     ! harris41  590:     <TD WIDTH="23%">shared library file for dynamic loading and unloading</TD>
1.1       harris41  591:     <TD WIDTH="26%">&nbsp;</TD>
                    592:   </TR>
                    593:   <TR BGCOLOR="#000000">
                    594:     <TD COLSPAN=3><FONT COLOR="#80FFFF" SIZE=+1><IMG SRC="directory.gif" ALT="directory"> DIRECTORY -- /home/httpd/html/adm/MathML</FONT></TD>
                    595:     <TD COLSPAN=2><FONT COLOR="#80FFFF"></FONT>&nbsp;</TD>
                    596:   </TR>
                    597:   <TR BGCOLOR="#80FFFF">
                    598:     <TD WIDTH="4%" BGCOLOR="#A0A0A0"><IMG SRC="static.gif" ALT="system file"></TD> 
                    599:     <TD WIDTH="35%">*.ent</TD>
                    600:     <TD WIDTH="12%">static conf</TD>
                    601:     <TD WIDTH="23%">entity files</TD>
1.2     ! harris41  602:     <TD WIDTH="26%">
        !           603: <B>listing</B><BR>
        !           604: <FONT SIZE=-2>
1.1       harris41  605: isoamsa.ent
                    606: isoamsb.ent
                    607: isoamsc.ent
                    608: isoamsn.ent
                    609: isoamso.ent
                    610: isoamsr.ent
                    611: isobox.ent
                    612: isocyr1.ent
                    613: isocyr2.ent
                    614: isodia.ent
                    615: isogrk1.ent
                    616: isogrk2.ent
                    617: isogrk3.ent
                    618: isogrk4.ent
                    619: isolat1.ent
                    620: isolat2.ent
                    621: isomfrk.ent
                    622: isomopf.ent
                    623: isomscr.ent
                    624: isonum.ent
                    625: isopub.ent
                    626: isotech.ent
                    627: mathml.dtd
                    628: mmlalias.ent
                    629: mmlextra.ent
                    630: </FONT>
                    631: </TD>
                    632:   </TR>
                    633:   <TR BGCOLOR="#80FFFF">
                    634:     <TD WIDTH="4%" BGCOLOR="#A0A0A0"><IMG SRC="static.gif" ALT="system file"></TD> 
                    635:     <TD WIDTH="35%">mathml.css</TD>
                    636:     <TD WIDTH="12%">static conf</TD>
                    637:     <TD WIDTH="23%">cascading style sheet</TD>
                    638:     <TD WIDTH="26%">&nbsp;</TD>
                    639:   </TR>
                    640:   <TR BGCOLOR="#80FFFF">
                    641:     <TD WIDTH="4%" BGCOLOR="#A0A0A0"><IMG SRC="static.gif" ALT="system file"></TD> 
                    642:     <TD WIDTH="35%">mathml.dtd</TD>
                    643:     <TD WIDTH="12%">static conf</TD>
                    644:     <TD WIDTH="23%">document type definition</TD>
                    645:     <TD WIDTH="26%">&nbsp;</TD>
                    646:   </TR>
                    647:   <TR BGCOLOR="#000000">
                    648:     <TD COLSPAN=3><FONT COLOR="#FFFF80" SIZE=+1><IMG SRC="directory.gif" ALT="directory"> DIRECTORY -- /home/httpd/html/res/adm/includes</FONT></TD>
                    649:     <TD COLSPAN=2><FONT COLOR="#FFFF80"></FONT>&nbsp;</TD>
                    650:   </TR>
                    651:   <TR BGCOLOR="#FFFF80">
                    652:     <TD WIDTH="4%" BGCOLOR="#A0A0A0"><IMG SRC="script.gif" ALT="graphic file"></TD> 
                    653:     <TD WIDTH="35%">londes.js</TD>
                    654:     <TD WIDTH="12%">script</TD>
1.2     ! harris41  655:     <TD WIDTH="23%">Encryption Routines according to Data Encryption Standard DES, written in javascript</TD>
1.1       harris41  656:     <TD WIDTH="26%">&nbsp;</TD>
                    657:   </TR>
                    658:   <TR BGCOLOR="#000000">
                    659:     <TD COLSPAN=3><FONT COLOR="#80FF80" SIZE=+1><IMG SRC="directory.gif" ALT="directory"> DIRECTORY -- /home/httpd/html/res/adm/pages</FONT></TD>
                    660:     <TD COLSPAN=2><FONT COLOR="#80FF80"></FONT>&nbsp;</TD>
                    661:   </TR>
                    662:   <TR BGCOLOR="#80FF80">
                    663:     <TD WIDTH="4%" BGCOLOR="#A0A0A0"><IMG SRC="graphicfile.gif" ALT="graphic file"></TD> 
                    664:     <TD WIDTH="35%">*.gif</TD>
                    665:     <TD WIDTH="12%">graphic files</TD>
1.2     ! harris41  666:     <TD WIDTH="23%">icons used for the entire LON-CAPA user interface</TD>
        !           667:     <TD WIDTH="26%">
        !           668: <B>listing</B><BR>
        !           669: <FONT SIZE=-2>
1.1       harris41  670: a.gif
                    671: b.gif
                    672: c.gif
                    673: chat.gif
                    674: d.gif
                    675: e.gif
                    676: endmenu.gif
                    677: f.gif
                    678: feedback.gif
                    679: fnkmenu.gif
                    680: g.gif
                    681: group.gif
                    682: h.gif
                    683: help.gif
                    684: hyphen.gif
                    685: i.gif
                    686: info.gif
                    687: j.gif
                    688: k.gif
                    689: l.gif
                    690: ledblink.gif
                    691: ledoff.gif
                    692: ledon.gif
                    693: ledsend.gif
                    694: m.gif
                    695: n.gif
                    696: navmenu.gif
                    697: next.gif
                    698: o.gif
                    699: p.gif
                    700: prev.gif
                    701: q.gif
                    702: r.gif
                    703: reload.gif
                    704: remotebg.gif
                    705: s.gif
                    706: space.gif
                    707: spacer.gif
                    708: t.gif
                    709: title.gif
                    710: u.gif
                    711: v.gif
                    712: w.gif
                    713: x.gif
                    714: y.gif
                    715: z.gif
                    716: </FONT></TD>
                    717:   </TR>
                    718:   <TR BGCOLOR="#80FF80">
                    719:     <TD WIDTH="4%" BGCOLOR="#A0A0A0"><IMG SRC="interfacefile.gif" ALT="interface file"></TD> 
                    720:     <TD WIDTH="35%">imgmaps.html</TD>
                    721:     <TD WIDTH="12%">interface file</TD>
1.2     ! harris41  722:     <TD WIDTH="23%">image maps for the LON-CAPA remote control</TD>
1.1       harris41  723:     <TD WIDTH="26%">&nbsp;</TD>
                    724:   </TR>
                    725:   <TR BGCOLOR="#80FF80">
                    726:     <TD WIDTH="4%" BGCOLOR="#A0A0A0"><IMG SRC="interfacefile.gif" ALT="interface file"></TD> 
                    727:     <TD WIDTH="35%">index.html</TD>
                    728:     <TD WIDTH="12%">interface file</TD>
1.2     ! harris41  729:     <TD WIDTH="23%">welcoming page to the LON-CAPA system upon login</TD>
1.1       harris41  730:     <TD WIDTH="26%">&nbsp;</TD>
                    731:   </TR>
                    732:   <TR BGCOLOR="#80FF80">
                    733:     <TD WIDTH="4%" BGCOLOR="#A0A0A0"><IMG SRC="interfacefile.gif" ALT="interface file"></TD> 
                    734:     <TD WIDTH="35%">menu.html</TD>
                    735:     <TD WIDTH="12%">interface file</TD>
1.2     ! harris41  736:     <TD WIDTH="23%">renders the HTML (including image maps) for the LON-CAPA remote control</TD>
1.1       harris41  737:     <TD WIDTH="26%">&nbsp;</TD>
                    738:   </TR>
                    739: </TABLE>
                    740: </BODY>
                    741: </HTML>

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