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8: <title>Installing LON-CAPA on a Fedora Linux System</title>
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1.2 ! matthew 12: <!-- $Id: LON-CAPA_fedora_install.html,v 1.1 2003/12/04 21:58:35 matthew Exp $ -->
1.1 matthew 13: <h1>Installing LON-CAPA on a Fedora Linux System</h1>
14: <p>
15: This document guides you through the process of setting up a new LON-CAPA
16: server running Fedora Linux. The computer will be configured solely as
17: a LON-CAPA server and will be expected to have no other services running
18: on it.
19: </p><p>
20: More information is available at <a href="http://install.lon-capa.org/">
21: http://install.lon-capa.org/</a>.
22: </p>
23:
24: <h2>Before you begin</h2>
25: <p>
26: Installing Linux is getting easier and easier. However, it is still a
27: non-trivial undertaking and experience with Red Hat Linux will make this
28: process easier. You will be required to log in to the machine and execute
29: some routine Unix commands. Some familiarity with Linux is assumed.
30: Familiarity with the Apache web server, mod_perl, perl, and MySQL are not
31: required to install and run LON-CAPA.
32: </p>
33:
34: <h2>Installation Overview</h2>
35: <p>
36: The installation process takes the following steps:
37: </p>
38: <ol>
39: <li> Obtain Fedora Linux </li>
40: <li> Determine Network Settings</li>
41: <li> Install Fedora </li>
42: <li> Install LON-CAPA Dependencies </li>
43: <li> Determine your LON-CAPA Settings </li>
44: <li> Install LON-CAPA </li>
45: <li> Configure LON-CAPA </li>
46: <li> Pick a hosts.tab file </li>
47: <li> Create a Domain Coordinator </li>
48: <li> Start/Restart services </li>
49: <li> Log in to LON-CAPA </li>
50: </ol>
51:
52: <h2>Obtain Fedora Linux</h2>
53: <p>
54: Fedora linux ISO files can be obtained from the projects main site,
55: <a href="http://fedora.redhat.com/">http://fedora.redhat.com/</a>.
56: </p>
57:
58: <h2>Determine Network Settings</h2>
59: <p>
60: You will need to know the following network settings for your installation.
61: <b>Note:</b>You must have a static IP address to use LON-CAPA.
62: DHCP is <em>not</em> supported.
63: </p>
64: <ul>
65: <li>ip address </li>
66: <li>netmask </li>
67: <li>hostname </li>
68: <li>gateway </li>
69: <li>domain name server(s) </li>
70: </ul>
71:
72: <h2>Gather needed information</h2>
73:
74:
75:
76: <h2>Install Fedora</h2>
77: <p>
78: Installing Fedora is quite easy if you've installed any of the Red Hat products
79: before. Some documentation is available from
80: <a href="http://fedora.redhat.com/projects/anaconda-installer/">
81: http://fedora.redhat.com/projects/anaconda-installer/</a>.
82: There are a few sections that require comment.
83: </p>
84: <dl style="list-style:square outside none">
85: <dt>Installation Type</dt>
86: <dd>You should do a "Server" install. We do not recommend
87: trying to install LON-CAPA with a different installation type.</dd>
88: <dt>Partitioning your Drive</dt>
89: <dd>You may want to use the automatic partitioning feature of the installer,
90: however you should review the results and be prepared to modify them.
91: LON-CAPA resource files are stored in the /home directory, so the
92: lion's share of the drive should be allocated here. If you have 20 GB
93: of space for Fedora, /home should receive 16 gigs. Be sure to
94: include adequate swap space. A minimum is 512 Megs, but you should
95: typically have 1 or 2x as much swap space as you do physical RAM.</dd>
96: <dt>Network Configuration</dt>
97: <dd>LON-CAPA will <b>not</b> work with a machine set up to use a dynamic
98: IP address. When configuring your network card, be sure to unselect
99: the DHCP option and enter in your network information.</dd>
100: <dt>Firewall Configuration</dt>
101: <dd>The firewall should be customized to allow incoming ssh and www.
102: Additional ports used by LON-CAPA are 5663 and 8080.
103: Enter these in the entry box as <nobr>"5663:tcp, 8080:tcp"</nobr>.</dd>
104: <dt>Package Group Selection</dt>
105: <dd>
106: <b>Do not</b> install a web server. It is intentially omitted from
107: this list. Installing packages not listed below is not recommended.
108: If you install packages not listed below you should expect difficulties
109: when installing the LON-CAPA dependencies.
110: <ul>
111: <li>Editors</li>
112: <li>Text Based Internet</li>
113: <li>Authoring and Publishing</li>
114: <li>Development Tools
115: <li>Administration Tools
116: <li>Printing Support
117: </ul>
118: </dd>
119: </dl>
120: <p>
121: Finish installing your server, reboot it, and log in as root.
122: </p>
123:
124: <h2>Retrieving the LON-CAPA Installation Archive</h2>
125: <p>
126: Execute the following command:
127: </p>
128: <pre>
129: wget http://install.loncapa.org/versions/fedora/fedora_install.tar
130: </pre>
131: <p>
132: This will retrieve from the LON-CAPA website all the packages needed to get
133: LON-CAPA running on your system, except for the LON-CAPA source itself.
134: </p>
135: <p>
136: Extract the archive with the following command:
137: </p>
138: <pre>
139: tar xf fedora_install.tar
140: </pre>
141: <p>
142: This creates a directory named <tt>installation</tt>.
143: </p>
144:
145: <h2>Installing LON-CAPA Dependencies</h2>
146: <p>
147: This section walks you through installing the packages which LON-CAPA requires.
1.2 ! matthew 148: There are a lot of dependencies. They have been grouped in a
1.1 matthew 149: somewhat logical fashion to make them easier to deal with. When installing
150: the rpms you should watch for errors.
151: </p><p>
152: The quick instructions are:
153: </p>
154: <pre>
155: cd installation
156: cd mysql
157: rpm -Uvh *rpm
158: cd ../apache
159: rpm -Uvh *rpm
160: cd ../mod_perl
161: rpm -Uvh *rpm
162: cd ../perl_dependencies
163: rpm -Uvh *rpm
164: cd ../GD
165: rpm -Uvh *rpm
166: cd ../gnuplot
167: rpm --install --oldpackage readline-2.2.1-6.i386.rpm
168: rpm --install --oldpackage --excludedocs libpng-1.0.12-2.i386.rpm
169: rpm -Uvh gnuplot-3.7.1-5.i386.rpm libgd-1.3-4.i386.rpm ncurses4-5.0-5.i386.rpm
170: cd ../misc
171: rpm -Uvh *rpm
172: cd ..
173: </pre>
174: <p>
175: <b>Notes:</b>
176: <ul>
177: <li>MySQL is used to store caches of data, not original copies.
178: Administering LON-CAPA machines does not yet mean becoming a
179: database administrator.</li>
180: <li>Apache 1.3 and mod_perl 1.x are required by LON-CAPA. These are
181: provided in the installation package.
182: <li>A specific version of Gnuplot is required by LON-CAPA. Do not
183: install a version different from the one included in the LON-CAPA
184: installation package.</li>
185: </ul>
186: </p>
187:
188: <h2>Configuring LON-CAPA Dependencies</h2>
189: <p>
190: We have prepared a script which takes care of most of the configuration that
191: must be done to get the newly installed packages working with LON-CAPA.
192: This script will retrieve the latest LON-CAPA release from
193: <a href="http://install.loncapa.org">http://install.loncapa.org</a>.
194: You will be prompted for a root password for your MySQL server. You
195: will need to remember this password in case you should ever need to make
196: changes the the server.
197: </p><p>
198: Execute the script as follows:
199: </p>
200: <pre>
201: cd setup;
202: ./install.pl
203: </pre>
204:
205: <h2>Determine LON-CAPA Settings</h2>
206: <p>
207: LON-CAPA requires a number of identifying parameters be set in order
208: for it to function at all. Below is a list with descriptions.
209: </p>
210: <dl>
211: <dt>Host Type (library or access)</dt>
212: <dd>The server must be designated a 'library' or an 'access' server. In
213: general you should have a library server for your instructors to create
214: their course content on and run their courses. Students should connect
215: to access servers. If you are doing the first install of LON-CAPA at
216: your site, or if you are playing with it for your own edification you
217: should make your machine a 'library' server.</dd>
218: <dt>LON-CAPA domain</dt>
219: <dd>Each site or school which installs LON-CAPA needs its own domain.
220: Here at MSU we use 'msu'. You should choose something short but
221: meaningful. <i>Restriction: One word, no hyphens, underscores, or
222: special characters.</i>
223: </dd>
224: <dt>LON-CAPA host id</dt>
225: <dd>Each LON-CAPA server requires a unique internal name. We use names
226: such as "msul1" for the first library server. <i>Restriction: One word,
227: no hyphens, underscores, or special characters.</i>
228: </dd>
229: <dt>Host administrator email</dt>
230: <dd>The amount of email sent to this address is relatively minimal. Messages
231: are sent every time the system starts up, or if the system is in
232: serious trouble. On a laptop, make this <tt>root@localhost</tt>.
233: </dd>
234: </dl>
235:
236: <h2>Configuring LON-CAPA</h2>
237: <p>
238: To configure and install LON-CAPA, execute the following commands:
239: </p>
240: <pre>
241: cd /root/loncapa-N.N (N.N should correspond to a version number like '1.1')
242: ./UPDATE
243: </pre>
244: <p>
245: You will need to enter the LON-CAPA configuration information you determined
246: in the previous section.
247: </p>
248:
249: <h2>Creating a Domain Coordinator</h2>
250: <p>
251: You will need at least one user at your site who has the role of
252: 'domain coordinator'. This user creates accounts for other users and
253: grants them additional privileges. The make_domain_coordinator.pl script
254: invoked below requires that you enter the users password. The password will
255: show in plaintext as you type it. Feel free to use the "passwd username"
256: command to change it later. Replace USERNAME and DOMAIN with an
257: appropriate user name and your domain.
258: </p>
259: <pre>
260: cd /root/loncapa-N.N/loncom/build
261: perl make_domain_coordinator.pl USERNAME DOMAIN
262: (WILL PROMPT FOR PASSWORD HERE)
263: </pre>
264:
265: <h2>Start/Restart Services</h2>
266: <p>
267: The LON-CAPA network services take a moment to start. Most misconfigurations
268: will be appearant at this step.
269: </p>
270: <pre>
271: /etc/init.d/loncontrol start
272: /etc/init.d/httpd start
273: </pre>
274:
275: <h2>Log in to your LON-CAPA Machine</h2>
276: <p>
277: Point a web browser at your new machine and log in as the domain
278: coordinator. Congratulations!
279: </p>
280:
281: </body>
282: </html>
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