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Added mention of the fedora installation instructions.

    1: <p>
    2: You will need to check all the following things to ensure proper
    3: installation of your LON-CAPA system. Be sure to use the <a
    4: href="rh73.html">RedHat 7.3</a> or <a href="fedora_install.html">Fedora</a> specific instructions if they apply,
    5: as that will be much easier for you.
    6: </p>
    7: <ul>
    8: <li><a href="#download">Downloading LON-CAPA</a></li>
    9: <li><a href="#wwwuser">
   10: Creating a user 'www'</a></li>
   11: <li><a href="#shadow">
   12: Make a LON-CAPA system work with shadow passwords</a></li>
   13: <li><a href="#install">
   14: Installing LON-CAPA files</a></li>
   15: <li><a href="#perl">
   16: Installing CPAN modules</a></li>
   17: <li><a href="#checkrpms">
   18: Checking your Linux RPMs</a> (On RedHat)</li>
   19: <li><a href="#fixhosts">
   20: Fixing <tt>/etc/hosts</tt></a></li>
   21: <li><a href="#mysql">
   22: Configuring the MySQL database</a></li>
   23: <li><a href="#testing">
   24: Testing to see if the LON-CAPA server is operational</a></li>
   25: </ul>
   26: 
   27: <a name="download" />
   28: <h3>Downloading LON-CAPA</h3>
   29: 
   30: <p>
   31: <b>Current Release is Version LATESTVERSION.
   32: This version was released on LATESTDATE.</b>
   33: </p>
   34: <p>
   35: You can download the <b>most current version of LON-CAPA</b> at
   36: <a href="http://install.lon-capa.org/versions/loncapa-current.tar.gz">
   37: http://install.lon-capa.org/versions/loncapa-current.tar.gz</a>
   38: (version LATESTVERSION).
   39: </p>
   40: <p>
   41: The <b>development release of LON-CAPA</b> is at:
   42: <a href="http://install.lon-capa.org/versions/loncapa-unstable.tar.gz">
   43: http://install.lon-capa.org/versions/loncapa-unstable.tar.gz</a>.
   44: </p>
   45: <p>
   46: To view the code development history of LON-CAPA, you will need to use the
   47: <a href="http://www.cvshome.org/">CVS</a> tool, the open standard for
   48: version control.  Please contact Helen (<a href="mailto:helen@lon-capa.org">
   49: helen@lon-capa.org</a>) to request a CVS USERNAME.
   50: </p>
   51: <p>
   52: The initial CVS commands would be:
   53: </p>
   54: <blockquote>
   55: <table bgcolor="#aaaaaa" border="1">
   56: <tr><td>
   57: <pre>
   58: export CVSROOT=:pserver:USERNAME@zaphod.lite.msu.edu:/home/cvs 
   59: cvs login 
   60: cvs co loncapa
   61: </pre>
   62: </td></tr></table>
   63: </blockquote>
   64: <p>
   65: For more information on using CVS, please visit
   66: <a href="http://www.cvshome.org/">http://www.cvshome.org/</a>
   67: or read <tt>loncom/build/readme.html</tt> after downloading
   68: the current version of LON-CAPA as described above.
   69: </p>
   70: 
   71: <a name="wwwuser" />
   72: <h3>Creating a user 'www'</h3>
   73: <p>
   74: Execute the following command to create a user named 'www' on your
   75: LON-CAPA server:
   76: </p>
   77: <table bgcolor="#aaaaaa" border="1"><tr><td>
   78: <tt>/usr/sbin/useradd www</tt>
   79: </td></tr></table>
   80: <a name="shadow" />
   81: <h3>Make a LON-CAPA system work with shadow passwords</h3>
   82: <table border="1">
   83: <tr><th>Step #</th><th>Description</th></tr>
   84: <tr><td>
   85: <font size="+1">1</font>
   86: </td><td>
   87: <p>Is your system using shadow passwords? (Note: LON-CAPA will work
   88: with either MD5/non-MD5 configured systems).  It is strongly
   89: recommended to use shadow passwords. If your system is currently not
   90: using shadow passwords, run the "pwconv" command (as root) in order to
   91: convert to shadow passwords.  If you choose not to use shadow
   92: passwords, then do not perform any of the additional steps.  If your
   93: system is using shadow passwords, then you will need to perform the
   94: additional steps below. 
   95: </p>
   96: <p>
   97: <strong>How to detect:</strong>
   98: <br />command: <tt>cat /etc/passwd | grep ':x:'</tt>
   99: </p>
  100: <p>If there is output such as "<tt>root:x:0:0:root:/root:/bin/bash</tt>",
  101: then your system is using shadow passwords and you will need to continue with
  102: the steps below.
  103: </p>
  104: </td></tr>
  105: <tr><td>
  106: <font size='+1'>2</font>
  107: </td><td>
  108: <p><strong>Retrieve the mod_auth_external source</strong> by
  109: running the following command
  110: </p>
  111: <p><tt>
  112: wget http://www.unixpapa.com/software/mod_auth_external-2.1.15.tar.gz
  113: </tt>
  114: </p>
  115: </td></tr>
  116: <tr><td>
  117: <font size='+1'>3</font>
  118: </td><td>
  119: <p><strong>Unpack the mod_auth_external source</strong> by
  120: running the following command
  121: </p>
  122: <p>
  123: <tt>tar xzvf mod_auth_external-2.1.15.tar.gz</tt>
  124: </p>
  125: </td></tr>
  126: <tr><td>
  127: <font size='+1'>4</font>
  128: </td><td>
  129: <p><strong>Go to the <tt>pwauth</tt> directory</strong> by
  130: running the following command
  131: </p>
  132: <p>
  133: <tt>cd mod_auth_external-2.1.15/pwauth/</tt>
  134: </p>
  135: </td></tr>
  136: <tr><td>
  137: <font size='+1'>5</font>
  138: </td><td>
  139: <p><strong>Edit <tt>config.h</tt> and change SERVER_UIDS definition</strong>
  140: </p>
  141: <p>
  142: Determine the user id of 'www':
  143: <br /><tt>id -u www</tt>
  144: <br />
  145: Change the line
  146: <br /><tt>#define SERVER_UIDS 99       /* user "nobody" */</tt>
  147: <br />to be
  148: <br /><tt>#define SERVER_UIDS 513      /* user "www" */</tt>
  149: <br />where in this example 513 corresponds to the user id of 'www'.
  150: </p>
  151: </td></tr>
  152: <tr><td>
  153: <font size='+1'>6</font>
  154: </td><td>
  155: <p><strong>Compile the <tt>pwauth</tt> executable</strong> by
  156: running the following command
  157: </p>
  158: <p>
  159: <tt>make</tt>
  160: </p>
  161: </td></tr>
  162: <tr><td>
  163: <font size='+1'>7</font>
  164: </td><td>
  165: <p><strong>Install <tt>pwauth</tt></strong> by doing the following
  166: </p>
  167: <p>
  168: <tt>cp pwauth /usr/local/sbin/</tt>
  169: <br /><tt>chmod 6755 /usr/local/sbin/pwauth</tt>
  170: </p>
  171: <p>
  172: Edit (creating the file) /etc/pam.d/pwauth to have the contents:
  173: </p>
  174: <pre>
  175:         auth       required     /lib/security/pam_pwdb.so shadow nullok
  176:         auth       required     /lib/security/pam_nologin.so
  177:         account    required     /lib/security/pam_pwdb.so
  178: </pre>
  179: </td></tr>
  180: </table>
  181: <a name="install" />
  182: <h3>Installing LON-CAPA files</h3>
  183: <p>
  184: Download the most current
  185: <a href="http://install.lon-capa.org/versions/loncapa-current.tar.gz">
  186: loncapa-current.tar.gz</a>.
  187: </p>
  188: <table bgcolor="#aaaaaa" border="1">
  189: <tr><td><tt>wget http://install.lon-capa.org/versions/loncapa-current.tar.gz
  190: </tt>
  191: <br />
  192: <tt>tar xzvf loncapa-current.tar.gz</tt>
  193: <br />
  194: <tt>cd loncapa-N.N</tt> (N.N is the version number)</td></tr>
  195: </table>
  196: <p>
  197: The <strong>UPDATE</strong> command will refresh your filesystem with all
  198: the latest LON-CAPA software.
  199: </p>
  200: <table bgcolor="#aaaaaa" border="1">
  201: <tr><td><tt>./UPDATE</tt></td></tr>
  202: </table>
  203: <a name="perl" />
  204: <h3>Installing CPAN modules</h3>
  205: 
  206: <p> Lon-CAPA uses a large numbe of perl modules that need to be
  207: installed. Some of these may be available on your machine already,
  208: some can be gotten from packages in your Linux Distribution. Some will probably need to come from CPAN </p>
  209: 
  210: <p> You can check which modules you have and which ones you need by
  211: running the TEST script. It will generate a CPAN_STATUS_REPORT.
  212: You can install an missing perl modules by doing:
  213: <table bgcolor="#aaaaaa" border="1">
  214: <tr><td><tt>perl -MCPAN -e 'install MODULENAME'</tt></td></tr>
  215: </table>
  216: Where MODULENAME is the perl module you need to install.
  217: </p>
  218: <p>
  219: More documentation on how CPAN works is available <a href="http://www.perl.com/CPAN/misc/cpan-faq.html#How_install_Perl_modules">here</a>
  220:  </p>
  221: 
  222: <a name="checkrpms" />
  223: <h3>Checking your Linux RPMs on RedHat</h3>
  224: <p>
  225: The <strong>CHECKRPMS</strong> command will check the RPMs on your machine
  226: against an FTP repository, if you're using a RedHat server.
  227: </p>
  228: 
  229: <table bgcolor="#aaaaaa" border="1">
  230: <tr><td><tt>./CHECKRPMS</tt></td></tr>
  231: </table>
  232: 
  233: <p>If you are not installing on RedHat, you may need to manually
  234: install some software. The following pointers may be useful:</p>
  235: 
  236: <ul><li>LON-CAPA uses a lot of Perl modules. If you are using RedHat,
  237: go to <a href="http://install.lon-capa.org/resources">this
  238: directory</a> and download the latest
  239: <b>LON-CAPA-systemperl-?.?-rh7.i386.rpm</b>, which will contain all
  240: the Perl modules you need on RedHat. Use <tt>rpm-Uvh --force</tt> to
  241: install the RPM; this will overwrite some currently existing files and
  242: that's OK.
  243: 
  244: <br /><br />For other Linux distributions, the easiest way to figure
  245: out what Perl modules are being used by LON-CAPA that you do not have
  246: installed is to try to start up LON-CAPA and see what Perl complains
  247: about missing. Start by trying to run <tt>/home/httpd/perl/lonc</tt>
  248: and <tt>/home/httpd/perl/lond</tt> manually as the <tt>www</tt> user,
  249: and install the modules it complains about not finding. How you
  250: install those modules will be distribution-specific, but failing all
  251: else, you can use CPAN; see <tt>man CPAN</tt> on your distribution.<br
  252: /><br />Once you've gotten <tt>lonc</tt> and <tt>lond</tt> to run, try
  253: starting up the webserver. How long this will take depends entirely on
  254: how close your distribution came to having all the modules LON-CAPA
  255: uses when you started.</li>
  256: <li>LON-CAPA assumes that the apache web server will be named "httpd"
  257: and have configuration directories in <tt>/etc/httpd</tt>. Some distributions 
  258: have that directory at <tt>/etc/apache</tt>. Symlinking <tt>httpd</tt> to the correct 
  259: directory should work.</li>
  260: </ul>
  261: <a name="fixhosts" />
  262: <h3>Fixing <tt>/etc/hosts</tt></h3>
  263: <p>
  264: A common RedHat glitch of new installations (RedHat's fault, not LON-CAPA)
  265: is the generation of /etc/hosts.
  266: </p>
  267: <p>
  268: It should look something like this (except the <tt>myschool</tt> line
  269: should be replaced with settings specific to your machine):
  270: </p>
  271: <table bgcolor="#aaaaaa" border="1">
  272: <tr><td>
  273: <pre>
  274: 127.0.0.1		localhost.localdomain localhost
  275: 12.34.56.78		www.myschool.edu myschool
  276: </pre></td></tr>
  277: </table>
  278: <a name="mysql" />
  279: <h3>Configuring the MySQL database</h3>
  280: <p>
  281: The following commands describe how to configure the MySQL database
  282: on your LON-CAPA server.
  283: <br />Note:
  284: </p>
  285: <ul>
  286: <li>you should substitute 'ROOTPASSWORD' with something very hard to guess
  287: (it does not have to be the Linux OS root password)
  288: </li>
  289: <li>The MySQL www@localhost user must always have a password of 'localhostkey'
  290: in order for there to be correct operation of a standard LON-CAPA system.
  291: </li>
  292: </ul>
  293: <p>
  294: The following instructions assume you are logged in as 'root'.
  295: </p>
  296: <p>Entering the mysql shell</p>
  297: <table bgcolor="#aaaaaa" border="1"><tr><td>
  298: <pre>
  299: mysql -u root -p mysql
  300: OR
  301: mysql -u root mysql (depending on whether you have set a root password)
  302: </pre>
  303: </td></tr></table>
  304: <p>Creating the mysql 'www' user (after entering mysql shell)</p>
  305: <table bgcolor="#aaaaaa" border="1"><tr><td>
  306: <pre>
  307: mysql> CREATE DATABASE loncapa;
  308: 
  309: mysql> INSERT INTO user (Host, User, Password)
  310: mysql> VALUES ('localhost','www',password('localhostkey'));
  311: 
  312: mysql> INSERT INTO db VALUES ('localhost','loncapa','www',
  313: mysql> 'Y','Y','Y','Y','Y','Y','N','Y','Y','Y');
  314: 
  315: mysql> FLUSH PRIVILEGES;
  316: </pre>
  317: </td></tr></table>
  318: <p>SECURITY: set a password for the mysql 'root' user</p>
  319: <table bgcolor="#aaaaaa" border="1"><tr><td>
  320: <pre>
  321: shell> mysql -u root mysql
  322: mysql> SET PASSWORD FOR root@localhost=PASSWORD('ROOTPASSWORD');
  323: </pre>
  324: </td></tr></table>
  325: <p>SECURITY: only allow access from localhost</p>
  326: <table bgcolor="#aaaaaa" border="1"><tr><td>
  327: <pre>
  328: shell> mysql -u root -p mysql
  329: mysql> DELETE FROM user WHERE host&lt;&gt;'localhost';
  330: </pre>
  331: </td></tr></table>
  332: <a name="testing" />
  333: <h3>Testing to see if the LON-CAPA server is operational</h3>
  334: <p>
  335: The <strong>TEST</strong> command will check the installation software,
  336: the perl libraries on your system, the MySQL database, and
  337: will also automatically test the real-time operation of the 
  338: LON-CAPA Apache web server.
  339: </p>
  340: <table bgcolor="#aaaaaa" border="1">
  341: <tr><td><tt>./TEST</tt></td></tr>
  342: </table>
  343: <p>
  344: Using the <strong>TEST</strong> command will likely
  345: be an iterative process.
  346: It is normal to expect that the <strong>TEST</strong> command
  347: will recommend you perform various steps to ensure optimal
  348: performance of your LON-CAPA server.
  349: </p>
  350: <!-- maintext end -->
  351: <!-- validated -->
  352: </body>
  353: </html>