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Fri May 2 19:25:01 2003 UTC (21 years, 3 months ago) by
albertel
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CVS tags:
version_1_0_3,
version_1_0_2,
version_1_0_1,
version_1_0_0,
version_0_99_5,
version_0_99_4,
version_0_99_3,
version_0_99_2,
version_0_99_1,
version_0_99_0,
conference_2003,
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- adding in Martin Siegert's corrections
1: <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
2: "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
3: <!-- The LearningOnline Network with CAPA -->
4: <!-- $Id: install.html,v 1.40 2003/05/02 19:25:01 albertel Exp $ -->
5: <html>
6: <head>
7: <meta http-equiv="Content-Type" content="text/html; charset=utf-8"></meta>
8: <title>LON-CAPA Installation</title>
9: <!-- pdfahref install.pdf -->
10: <!-- button INSTALL -->
11: </head>
12: <body bgcolor='#ffffff'>
13: <!-- preamble start -->
14: <br />
15: <p>
16: You will need to check all the following things to ensure proper
17: installation of your LON-CAPA system.
18: </p>
19: <ul>
20: <li><a href="#wwwuser">
21: Creating a user 'www'</a></li>
22: <li><a href="#shadow">
23: Make a LON-CAPA system work with shadow passwords</a></li>
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="#fixhosts">
29: Fixing <tt>/etc/hosts</tt></a></li>
30: <li><a href="#mysql">
31: Configuring the MySQL database</a></li>
32: <li><a href="#testing">
33: Testing to see if the LON-CAPA server is operational</a></li>
34: </ul>
35: <p>
36: <strong>NOTE:</strong>
37: If you want to simultaneously install both RedHat 7.3 and LON-CAPA
38: (to ensure 100% reliability), follow <a href="rh73.html">these
39: alternative directions</a>.
40: </p>
41: <br />
42: <!-- preamble end -->
43: <!-- maintext start -->
44: <a name="wwwuser" />
45: <h3>Creating a user 'www'</h3>
46: <p>
47: Execute the following command to create a user named 'www' on your
48: LON-CAPA server:
49: </p>
50: <table bgcolor="#aaaaaa" border="1"><tr><td>
51: <tt>/usr/sbin/useradd www</tt>
52: </td></tr></table>
53: <a name="shadow" />
54: <h3>Make a LON-CAPA system work with shadow passwords</h3>
55: <table border="1">
56: <tr><th>Step #</th><th>Description</th></tr>
57: <tr><td>
58: <font size="+1">1</font>
59: </td><td>
60: <p>Is your system using shadow passwords? (Note: LON-CAPA will work
61: with either MD5/non-MD5 configured systems). It is strongly
62: recommended to use shadow passwords. If your system is currently not
63: using shadow passwords, run the "pwconv" command (as root) in order to
64: convert to shadow passwords. If you choose not to use shadow
65: passwords, then do not perform any of the additional steps. If your
66: system is using shadow passwords, then you will need to perform the
67: additional steps below.
68: </p>
69: <p>
70: <strong>How to detect:</strong>
71: <br />command: <tt>cat /etc/passwd | grep ':x:'</tt>
72: </p>
73: <p>If there is output such as "<tt>root:x:0:0:root:/root:/bin/bash</tt>",
74: then your system is using shadow passwords and you will need to continue with
75: the steps below.
76: </p>
77: </td></tr>
78: <tr><td>
79: <font size='+1'>2</font>
80: </td><td>
81: <p><strong>Retrieve the mod_auth_external source</strong> by
82: running the following command
83: </p>
84: <p><tt>
85: wget http://www.unixpapa.com/software/mod_auth_external-2.1.15.tar.gz
86: </tt>
87: </p>
88: </td></tr>
89: <tr><td>
90: <font size='+1'>3</font>
91: </td><td>
92: <p><strong>Unpack the mod_auth_external source</strong> by
93: running the following command
94: </p>
95: <p>
96: <tt>tar xzvf mod_auth_external-2.1.15.tar.gz</tt>
97: </p>
98: </td></tr>
99: <tr><td>
100: <font size='+1'>4</font>
101: </td><td>
102: <p><strong>Go to the <tt>pwauth</tt> directory</strong> by
103: running the following command
104: </p>
105: <p>
106: <tt>cd mod_auth_external-2.1.15/pwauth/</tt>
107: </p>
108: </td></tr>
109: <tr><td>
110: <font size='+1'>5</font>
111: </td><td>
112: <p><strong>Edit <tt>config.h</tt> and change SERVER_UIDS definition</strong>
113: </p>
114: <p>
115: Determine the user id of 'www':
116: <br /><tt>id -u www</tt>
117: <br />
118: Change the line
119: <br /><tt>#define SERVER_UIDS 99 /* user "nobody" */</tt>
120: <br />to be
121: <br /><tt>#define SERVER_UIDS 513 /* user "www" */</tt>
122: <br />where in this example 513 corresponds to the user id of 'www'.
123: </p>
124: </td></tr>
125: <tr><td>
126: <font size='+1'>6</font>
127: </td><td>
128: <p><strong>Compile the <tt>pwauth</tt> executable</strong> by
129: running the following command
130: </p>
131: <p>
132: <tt>make</tt>
133: </p>
134: </td></tr>
135: <tr><td>
136: <font size='+1'>7</font>
137: </td><td>
138: <p><strong>Install <tt>pwauth</tt></strong> by doing the following
139: </p>
140: <p>
141: <tt>cp pwauth /usr/local/sbin/</tt>
142: <br /><tt>chmod 6755 /usr/local/sbin/pwauth</tt>
143: </p>
144: <p>
145: Edit (creating the file) /etc/pam.d/pwauth to have the contents:
146: </p>
147: <pre>
148: auth required /lib/security/pam_pwdb.so shadow nullok
149: auth required /lib/security/pam_nologin.so
150: account required /lib/security/pam_pwdb.so
151: </pre>
152: </td></tr>
153: </table>
154: <a name="install" />
155: <h3>Installing LON-CAPA files</h3>
156: <p>
157: Download the most current
158: <a href="http://install.lon-capa.org/versions/loncapa-current.tar.gz">
159: loncapa-current.tar.gz</a>.
160: </p>
161: <table bgcolor="#aaaaaa" border="1">
162: <tr><td><tt>wget http://install.lon-capa.org/versions/loncapa-current.tar.gz
163: </tt>
164: <br />
165: <tt>tar xzvf loncapa-current.tar.gz</tt>
166: <br />
167: <tt>cd loncapa-N.N</tt> (N.N is the version number)</td></tr>
168: </table>
169: <p>
170: The <strong>UPDATE</strong> command will refresh your filesystem with all
171: the latest LON-CAPA software.
172: </p>
173: <table bgcolor="#aaaaaa" border="1">
174: <tr><td><tt>./UPDATE</tt></td></tr>
175: </table>
176: <a name="checkrpms" />
177: <h3>Checking your Linux RPMs</h3>
178: <p>
179: The <strong>CHECKRPMS</strong> command will check the RPMs on your machine
180: against an FTP repository.
181: </p>
182: <table bgcolor="#aaaaaa" border="1">
183: <tr><td><tt>./CHECKRPMS</tt></td></tr>
184: </table>
185: <p>
186: Also, please be sure to install the LON-CAPA-systemperl RPM as described on
187: the <a href="/docs/downloads/index.html">Downloads</a> page.
188: </p>
189: <a name="fixhosts" />
190: <h3>Fixing <tt>/etc/hosts</tt></h3>
191: <p>
192: A common RedHat glitch of new installations (RedHat's fault, not LON-CAPA)
193: is the generation of /etc/hosts.
194: </p>
195: <p>
196: It should look something like this (except the <tt>myschool</tt> line
197: should be replaced with settings specific to your machine):
198: </p>
199: <table bgcolor="#aaaaaa" border="1">
200: <tr><td>
201: <pre>
202: 127.0.0.1 localhost.localdomain localhost
203: 12.34.56.78 www.myschool.edu myschool
204: </pre></td></tr>
205: </table>
206: <a name="mysql" />
207: <h3>Configuring the MySQL database</h3>
208: <p>
209: The following commands describe how to configure the MySQL database
210: on your LON-CAPA server.
211: <br />Note:
212: </p>
213: <ul>
214: <li>you should substitute 'ROOTPASSWORD' with something very hard to guess
215: (it does not have to be the Linux OS root password)
216: </li>
217: <li>The MySQL www@localhost user must always have a password of 'localhostkey'
218: in order for there to be correct operation of a standard LON-CAPA system.
219: </li>
220: </ul>
221: <p>
222: The following instructions assume you are logged in as 'root'.
223: </p>
224: <p>Entering the mysql shell</p>
225: <table bgcolor="#aaaaaa" border="1"><tr><td>
226: <pre>
227: mysql -u root -p mysql
228: OR
229: mysql -u root mysql (depending on whether you have set a root password)
230: </pre>
231: </td></tr></table>
232: <p>Creating the mysql 'www' user (after entering mysql shell)</p>
233: <table bgcolor="#aaaaaa" border="1"><tr><td>
234: <pre>
235: mysql> CREATE DATABASE loncapa;
236:
237: mysql> INSERT INTO user (Host, User, Password)
238: mysql> VALUES ('localhost','www',password('localhostkey'));
239:
240: mysql> INSERT INTO db VALUES ('localhost','loncapa','www',
241: mysql> 'Y','Y','Y','Y','Y','Y','N','Y','Y','Y');
242:
243: mysql> FLUSH PRIVILEGES;
244: </pre>
245: </td></tr></table>
246: <p>SECURITY: set a password for the mysql 'root' user</p>
247: <table bgcolor="#aaaaaa" border="1"><tr><td>
248: <pre>
249: shell> mysql -u root mysql
250: mysql> SET PASSWORD FOR root@localhost=PASSWORD('ROOTPASSWORD');
251: </pre>
252: </td></tr></table>
253: <p>SECURITY: only allow access from localhost</p>
254: <table bgcolor="#aaaaaa" border="1"><tr><td>
255: <pre>
256: shell> mysql -u root -p mysql
257: mysql> DELETE FROM user WHERE host<>'localhost';
258: </pre>
259: </td></tr></table>
260: <a name="testing" />
261: <h3>Testing to see if the LON-CAPA server is operational</h3>
262: <p>
263: The <strong>TEST</strong> command will check the installation software,
264: the perl libraries on your system, the MySQL database, and
265: will also automatically test the real-time operation of the
266: LON-CAPA Apache web server.
267: </p>
268: <table bgcolor="#aaaaaa" border="1">
269: <tr><td><tt>./TEST</tt></td></tr>
270: </table>
271: <p>
272: Using the <strong>TEST</strong> command will likely
273: be an iterative process.
274: It is normal to expect that the <strong>TEST</strong> command
275: will recommend you perform various steps to ensure optimal
276: performance of your LON-CAPA server.
277: </p>
278: <!-- maintext end -->
279: <!-- validated -->
280: </body>
281: </html>
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