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1.11      harris41    3: <!-- The LearningOnline Network with CAPA -->
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1.11      harris41    5: <html>
                      6: <head>
1.18      harris41    7: <meta http-equiv="Content-Type" content="text/html; charset=utf-8"></meta>
1.11      harris41    8: <title>LON-CAPA Installation</title>
1.12      harris41    9: <!-- pdfahref install.pdf -->
                     10: <!-- button INSTALL -->
1.11      harris41   11: </head>
1.12      harris41   12: <body bgcolor='#ffffff'>
                     13: <!-- preamble start -->
                     14: <br />&nbsp;
                     15: <p>
                     16: You will need to check all the following things to ensure proper
                     17: installation of your LON-CAPA system.
1.18      harris41   18: </p>
1.12      harris41   19: <ul>
1.13      harris41   20: <li><a href="#wwwuser">
                     21: Creating a user 'www'</a></li>
                     22: <li><a href="#shadow">
1.12      harris41   23: Make a LON-CAPA system work with shadow passwords</a></li>
1.13      harris41   24: <li><a href="#install">
                     25: Installing LON-CAPA files</a></li>
                     26: <li><a href="#checkrpms">
                     27: Checking your Linux RPMs</a></li>
                     28: <li><a href="#mysql">
                     29: Configuring the MySQL database</a></li>
1.15      harris41   30: <li><a href="#testing">
                     31: Testing to see if the LON-CAPA server is operational</a></li>
1.12      harris41   32: </ul>
                     33: <br />&nbsp;
                     34: <!-- preamble end -->
                     35: <!-- maintext start -->
1.13      harris41   36: <a name="wwwuser" />
                     37: <h3>Creating a user 'www'</h3>
                     38: <p>
1.14      harris41   39: Execute the following command to create a user named 'www' on your
                     40: LON-CAPA server:
1.13      harris41   41: </p>
1.14      harris41   42: <table bgcolor="#aaaaaa" border="1"><tr><td>
                     43: <tt>/usr/sbin/useradd www</tt>
                     44: </td></tr></table>
1.13      harris41   45: <a name="shadow" />
1.12      harris41   46: <h3>Make a LON-CAPA system work with shadow passwords</h3>
1.14      harris41   47: <table border="1">
1.12      harris41   48: <tr><th>Step #</th><th>Description</th></tr>
                     49: <tr><td>
1.14      harris41   50: <font size="+1">1</font>
1.12      harris41   51: </td><td>
                     52: <p>Is your system using shadow passwords? (Note: LON-CAPA will
                     53: work with either MD5/non-MD5 configured systems).  If your
                     54: system is not using shadow passwords, then do not perform
                     55: any of the additional steps.  If your system is using shadow
                     56: passwords, then you will need to perform the additional steps below.
                     57: </p>
                     58: <p>
                     59: <strong>How to detect:</strong>
                     60: <br />command: <tt>cat /etc/passwd | grep ':x:'</tt>
                     61: </p>
                     62: <p>If there is output such as "<tt>root:x:0:0:root:/root:/bin/bash</tt>",
                     63: then your system is using shadow passwords and you will need to continue with
                     64: the steps below.
                     65: </p>
                     66: </td></tr>
                     67: <tr><td>
                     68: <font size='+1'>2</font>
                     69: </td><td>
                     70: <p><strong>Retrieve the mod_auth_external source</strong> by
                     71: running the following command
                     72: </p>
                     73: <p><tt>
                     74: wget http://www.wwnet.net/~janc/software/mod_auth_external-2.1.13.tar.gz
                     75: </tt>
                     76: </p>
                     77: </td></tr>
1.13      harris41   78: <tr><td>
                     79: <font size='+1'>3</font>
                     80: </td><td>
1.17      harris41   81: <p><strong>Unpack the mod_auth_external source</strong> by
                     82: running the following command
                     83: </p>
                     84: <p>
                     85: <tt>tar xzvf mod_auth_external-2.1.13.tar.gz</tt>
                     86: </p>
                     87: </td></tr>
                     88: <tr><td>
                     89: <font size='+1'>4</font>
                     90: </td><td>
                     91: <p><strong>Go to the <tt>pwauth</tt> directory</strong> by
                     92: running the following command
                     93: </p>
                     94: <p>
                     95: <tt>cd mod_auth_external-2.1.13/pwauth/</tt>
                     96: </p>
                     97: </td></tr>
                     98: <tr><td>
                     99: <font size='+1'>5</font>
                    100: </td><td>
                    101: <p><strong>Edit <tt>config.h</tt> and change SERVER_UIDS definition</strong>
                    102: </p>
                    103: <p>
                    104: Determine the user id of 'www':
                    105: <br /><tt>grep ^www /etc/passwd | cut -d':' -f3</tt>
                    106: <br />
                    107: Change the line
                    108: <br /><tt>#define SERVER_UIDS 99       /* user "nobody" */</tt>
                    109: <br />to be
                    110: <br /><tt>#define SERVER_UIDS 513      /* user "www" */</tt>
                    111: <br />where in this example 513 corresponds to the user id of 'www'.
1.13      harris41  112: </p>
1.17      harris41  113: </td></tr>
                    114: <tr><td>
                    115: <font size='+1'>6</font>
                    116: </td><td>
                    117: <p><strong>Compile the <tt>pwauth</tt> executable</strong> by
                    118: running the following command
                    119: </p>
                    120: <p>
                    121: <tt>make</tt>
                    122: </p>
                    123: </td></tr>
                    124: <tr><td>
                    125: <font size='+1'>7</font>
                    126: </td><td>
                    127: <p><strong>Install <tt>pwauth</tt></strong> by doing the following
                    128: </p>
                    129: <p>
                    130: <tt>cp pwauth /usr/local/sbin/</tt>
                    131: <br /><tt>chmod 6755 /usr/local/sbin/pwauth</tt>
                    132: </p>
                    133: <p>
                    134: Edit (creating the file) /etc/pam.d/pwauth to have the contents:
1.18      harris41  135: </p>
1.17      harris41  136: <pre>
                    137:         auth       required     /lib/security/pam_pwdb.so shadow nullok
                    138:         auth       required     /lib/security/pam_nologin.so
                    139:         account    required     /lib/security/pam_pwdb.so
                    140: </pre>
1.13      harris41  141: </td></tr>
                    142: </table>
                    143: <a name="install" />
                    144: <h3>Installing LON-CAPA files</h3>
                    145: <p>
                    146: Download the most current
                    147: <a href="http://install.lon-capa.org/versions/current/loncapa.tar.gz">
                    148: loncapa.tar.gz</a>.
                    149: </p>
1.25      harris41  150: <table bgcolor="#aaaaaa" border="1">
                    151: <tr><td><tt>wget http://install.lon-capa.org/versions/current/loncapa.tar.gz
                    152: </tt>
                    153: <br />
                    154: <tt>tar xzvf loncapa.tar.gz</tt>
1.26      harris41  155: <br />
1.25      harris41  156: <tt>cd loncapa</tt></td></tr>
                    157: </table>
1.14      harris41  158: <p>
                    159: The <strong>UPDATE</strong> command will refresh your filesystem with all
                    160: the latest LON-CAPA software.
                    161: </p>
                    162: <table bgcolor="#aaaaaa" border="1">
                    163: <tr><td><tt>./UPDATE</tt></td></tr>
                    164: </table>
1.13      harris41  165: <a name="checkrpms" />
                    166: <h3>Checking your Linux RPMs</h3>
                    167: <p>
1.14      harris41  168: The <strong>CHECKRPMS</strong> command will check the RPMs on your machine
                    169: against an FTP repository.
1.13      harris41  170: </p>
1.14      harris41  171: <table bgcolor="#aaaaaa" border="1">
1.13      harris41  172: <tr><td><tt>./CHECKRPMS</tt></td></tr>
1.12      harris41  173: </table>
1.13      harris41  174: <a name="mysql" />
                    175: <h3>Configuring the MySQL database</h3>
                    176: <p>
                    177: The following commands describe how to configure the MySQL database
                    178: on your LON-CAPA server.
1.19      harris41  179: <br />Note:
1.12      harris41  180: </p>
1.19      harris41  181: <ul>
                    182: <li>you should substitute 'ROOTPASSWORD' with something very hard to guess
                    183: (it does not have to be the Linux OS root password)
                    184: </li>
1.27      harris41  185: <li>The MySQLwww@localhost must always have a password of 'localhostkey'
                    186: to work for a standard LON-CAPA system.
                    187: </li>
1.19      harris41  188: </ul>
1.23      harris41  189: <p>
                    190: The following instructions assume you are logged in as 'root'.
                    191: </p>
1.20      harris41  192: <p>Entering the mysql shell</p>
1.14      harris41  193: <table bgcolor="#aaaaaa" border="1"><tr><td>
1.13      harris41  194: <pre>
                    195: mysql -u root -p mysql
1.19      harris41  196: OR
1.22      harris41  197: mysql -u root mysql (depending on whether you have set a root password)
1.19      harris41  198: </pre>
                    199: </td></tr></table>
1.20      harris41  200: <p>Creating the mysql 'www' user (after entering mysql shell)</p>
1.19      harris41  201: <table bgcolor="#aaaaaa" border="1"><tr><td>
                    202: <pre>
                    203: mysql> CREATE DATABASE loncapa;
1.13      harris41  204: 
1.19      harris41  205: mysql> INSERT INTO user (Host, User, Password)
1.27      harris41  206: mysql> VALUES ('localhost','www',password('localhostkey'));
1.13      harris41  207: 
1.19      harris41  208: mysql> GRANT ALL PRIVILEGES ON *.* TO www@localhost;
1.13      harris41  209: 
1.19      harris41  210: mysql> FLUSH PRIVILEGES;
                    211: </pre>
                    212: </td></tr></table>
1.20      harris41  213: <p>SECURITY: set a password for the mysql 'root' user</p>
1.19      harris41  214: <table bgcolor="#aaaaaa" border="1"><tr><td>
                    215: <pre>
1.13      harris41  216: shell> mysql -u root mysql
1.19      harris41  217: mysql> SET PASSWORD FOR root@localhost=PASSWORD('ROOTPASSWORD');
                    218: </pre>
                    219: </td></tr></table>
1.20      harris41  220: <p>SECURITY: only allow access from localhost</p>
1.19      harris41  221: <table bgcolor="#aaaaaa" border="1"><tr><td>
                    222: <pre>
                    223: shell> mysql -u root -p mysql
1.28    ! harris41  224: mysql> DELETE FROM user WHERE host&lt;&gt;'localhost';
1.13      harris41  225: </pre>
                    226: </td></tr></table>
1.15      harris41  227: <a name="testing" />
                    228: <h3>Testing to see if the LON-CAPA server is operational</h3>
                    229: <p>
                    230: The <strong>TEST</strong> command will check the installation software,
                    231: the perl libraries on your system, the MySQL database, and
                    232: will also automatically test the real-time operation of the 
                    233: LON-CAPA Apache web server.
                    234: </p>
                    235: <table bgcolor="#aaaaaa" border="1">
                    236: <tr><td><tt>./TEST</tt></td></tr>
                    237: </table>
1.16      harris41  238: <p>
                    239: Using the <strong>TEST</strong> command will likely
                    240: be an iterative process.
                    241: It is normal to expect that the <strong>TEST</strong> command
                    242: will recommend you perform various steps to ensure optimal
                    243: performance of your LON-CAPA server.
                    244: </p>
1.12      harris41  245: <!-- maintext end -->
1.18      harris41  246: <!-- validated -->
1.11      harris41  247: </body>
                    248: </html>

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