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    1: <p>
    2: There are about a dozen files on the LON-CAPA server systems
    3: which the system administrator may need to adjust.
    4: </p>
    5: <p>
    6: The two most important configuration files are:
    7: </p>
    8: <ul>
    9: <li><strong>loncapa.conf</strong> -
   10: typically located in the directory <tt>/etc/httpd/conf/</tt>;
   11: <br /><i>contains machine-specific and institution-specific
   12: variables and modifications necessary for
   13: the effective running of the Apache web server;
   14: note that there is also a <strong>loncapa_apache.conf</strong>
   15: which should be installed, but not modified</i>
   16: <br />&nbsp;
   17: </li>
   18: <li><strong>hosts.tab</strong> -
   19: typically located in the directory <tt>/home/httpd/lonTabs/</tt>;
   20: <br /><i>is a listing of all other internet machines that a server
   21: system considers to be valid server systems on the LON-CAPA
   22: network</i>
   23: <br />&nbsp;
   24: </li>
   25: </ul>
   26: <!-- preamble end -->
   27: <!-- maintext start -->
   28: <h3>Current Reconfiguration Procedure</h3>
   29: <p>
   30: After making any configuration change, you will need to restart system
   31: services.  The two most important system services on a LON-CAPA system are
   32: <strong>loncapa</strong> and <strong>httpd</strong>.  Here are the
   33: commands for restarting the system services:
   34: </p>
   35: <table bgcolor="#aaaaaa" border="1"><tr><td>
   36: <tt>/etc/rc.d/init.d/loncapa restart</tt>
   37: <br /><tt>/etc/rc.d/init.d/httpd restart</tt>
   38: </td></tr></table>
   39: <p>
   40: We recommend that a knowledgeable system administrator should
   41: perform any adjustments on a LON-CAPA server machine.
   42: Locations of these files are by default.  Depending on your
   43: Linux distribution--RedHat, Mandrake, Debian, etc, the file paths
   44: may be elsewhere.
   45: </p>
   46: <h3>Configuration files that will have to be altered</h3>
   47: <p>
   48: LON-CAPA currently depends on the following list of configuration
   49: files.  Note that <tt>loncapa.conf</tt> is automatically
   50: altered by the installation/upgrade scripts associated with
   51: the tarball-distribution (see the <b>INSTALL</b> and <b>UPGRADE</b>
   52: sections of this web-site).  (Thus, the system administrator should
   53: not have to further adjust <tt>loncapa.conf</tt> from the terminal.)
   54: </p>
   55: <ul>
   56: <li><a href="confexamples/loncapa.conf">[EXAMPLE]</a>
   57: /etc/httpd/conf/loncapa.conf</li>
   58: <li><a href="confexamples/hosts.tab">[EXAMPLE]</a>
   59: /home/httpd/lonTabs/hosts.tab</li>
   60: <li><a href="confexamples/domain.tab">[EXAMPLE]</a>
   61: /home/httpd/lonTabs/domain.tab</li>
   62: <li><a href="confexamples/spare.tab">[EXAMPLE]</a>
   63: /home/httpd/lonTabs/spare.tab</li>
   64: <li><a href="confexamples/krb.conf">[EXAMPLE]</a> /etc/krb.conf</li>
   65: <li><a href="confexamples/htpasswd">[EXAMPLE]</a>
   66: /home/httpd/lonTabs/htpasswd</li>
   67: <li><a href="confexamples/ntp.conf">[EXAMPLE]</a> /etc/ntp.conf</li>
   68: <li><a href="confexamples/step-tickers">[EXAMPLE]</a>
   69: /etc/ntp/step-tickers</li>
   70: <li><a href="confexamples/pwauth">[EXAMPLE]</a> /etc/pam.d/pwauth</li>
   71: </ul>
   72: <h3>Configuration files that do not have to be altered</h3>
   73: <p>
   74: The following configuration files are critical for the correct
   75: performance of a LON-CAPA server machine.  Typically, these configuration
   76: files do not need to be adjusted by the system administrator.
   77: </p>
   78: <ul>
   79: <li><a href="confexamples/loncapa_apache.conf">[EXAMPLE]</a>
   80: /etc/httpd/conf/loncapa_apache.conf</li>
   81: <li><a href="confexamples/un_keyword.tab">[EXAMPLE]</a>
   82: /home/httpd/html/res/adm/includes/un_keyword.tab</li>
   83: </ul>
   84: 
   85: <h3>Configuring Secondary Services</h3>
   86: <p>
   87: LON-CAPA does not provide integrated support for secondary services.
   88: The expectation is that knowledgeable system administrators will
   89: customize these secondary services for their institution.
   90: </p>
   91: <p>
   92: We do, however, provide example configurations of services that you
   93: may want to deliver with LON-CAPA (i.e. Samba and AppleChooser).
   94: </p>
   95: <ul>
   96: <li><a href="confexamples/smb.conf">[EXAMPLE]</a> /etc/smb.conf</li>
   97: <li><a href="confexamples/config">[EXAMPLE]</a> /etc/atalk/config</li>
   98: </ul>