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version 1.4, 2008/12/10 19:57:29	version 1.8, 2013/12/13 18:28:42
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<h1>Installing LON-CAPA on a minimal SuSE Linux Enterprise Server (SLES) 10</h1>	<h1>Installing LON-CAPA on a minimal SuSE Linux Enterprise Server (SLES) 10</h1>
<p>	<p>
This document guides you through the process of setting up a new LON-CAPA	This document guides you through the process of setting up a new LON-CAPA
server running SuSE Linux Enterprise Server 10 (SLES 10) with a minimum of packages installed.	server running SuSE Linux Enterprise Server 10 (SLES 10) with a minimum of packages installed.
The computer will be configured solely as a LON-CAPA server and will be	The computer will be configured solely as a LON-CAPA server and will be
expected to have no other services running. Your server is expected to have	expected to have no other services running. Your server is expected to have
a reasonably fast connection to the internet.	a reasonably fast connection to the internet.
</p><p>	</p><p>
More information is available at	More information is available at
<a href="http://install.lon-capa.org/">http://install.lon-capa.org/</a>.	<a href="http://install.lon-capa.org/">http://install.lon-capa.org/</a>.
</p>	</p>

<h2>Before you begin</h2>	<h2>Before you begin</h2>
<p>	<p>
Installing Linux is getting easier and easier.	Installing Linux is getting easier and easier.
You will be required to log in to the machine and execute	You will be required to log in to the machine and execute
some routine Unix commands. Familiarity with the Apache web server, mod_perl,	some routine Unix commands. Familiarity with the Apache web server, mod_perl,
perl, and MySQL are not required to install and run LON-CAPA.	perl, and MySQL are not required to install and run LON-CAPA.
</p>	</p>

Line 23 perl, and MySQL are not required to inst	Line 23 perl, and MySQL are not required to inst
The installation process takes the following steps:	The installation process takes the following steps:
</p>	</p>
<ol>	<ol>
<li> Obtain SLES 10 installation media</li>	<li><a href="#obt">Obtain SLES 10 installation media</a></li>
<li> Determine Network Settings</li>	<li><a href="#net">Determine Network Settings</a></li>
<li> Install SLES 10</li>	<li><a href="#lin">Install SLES 10</a></li>
<li> Update your system </li>	<li><a href="#upd">Update your system</a></li>
<li> Install LON-CAPA </li>	<li><a href="#ilc">Install LON-CAPA</a></li>
<li> Create a Domain Coordinator </li>	<li><a href="#cdc">Create a Domain Coordinator</a></li>
<li> Start/Restart services </li>	<li><a href="#sts">Start/Restart services</a></li>
<li> Log in to LON-CAPA </li>	<li><a href="#log">Log in to LON-CAPA</a></li>
</ol>	</ol>

<h2>Obtain SuSE Linux Enterprise Server 10</h2>	<hr>
	<h2>1. <a name="obt">Obtain SuSE Linux Enterprise Server 10</a></h2>
<p>	<p>
SuSE ISO files can be obtained from the Novell site: <a href="http://www.novell.com/products/server/">http://www.novell.com/products/server/</a>.	SuSE ISO files can be obtained from the Novell site: <a href="http://www.novell.com/products/server/">http://www.novell.com/products/server/</a>.
</p>	</p>

<h2>Determine Network Settings</h2>	<h2>2. <a name="net">Determine Network Settings</a></h2>
<p>	<p>
You will need to know the following network settings for your installation.	You will need to know the following network settings for your installation.
<b>Note:</b>You must have a static IP address to use LON-CAPA.	<b>Note:</b>You must have a static IP address to use LON-CAPA.
DHCP is <em>not</em> supported.	DHCP is <em>not</em> supported.
</p>	</p>
Line 52 DHCP is <em>not</em> supported.	Line 53 DHCP is <em>not</em> supported.
<li>domain name server(s) </li>	<li>domain name server(s) </li>
</ul>	</ul>

<h2>Minimal SLES 10 Install</h2>	<h2>3. <a name="lin">Minimal SLES 10 Install</a></h2>
<p>	<p>
Installing SuSE Linux Enterprise Server is quite easy if you've installed Linux products	Installing SuSE Linux Enterprise Server is quite easy if you've installed Linux products
before. Some documentation is available from	before. Some documentation is available from
<a href="http://www.novell.com/documentation/sles10/">	<a href="http://www.novell.com/documentation/sles10/">
http://www.novell.com/documentation/sles10/</a>.<br /><br />	http://www.novell.com/documentation/sles10/</a>.<br><br>
Most of the subsequent installation screens are self explanatory.	Most of the installation screens are self explanatory.
There are a few steps that require comment and are dealt with below.	There are a few steps that require comment and are dealt with below.
</p>	</p>
<dl style="list-style:square outside none">	<dl style="list-style:square outside none">
Line 66 There are a few steps that require comme	Line 67 There are a few steps that require comme
<dd>Use English as your installation language.</dd>	<dd>Use English as your installation language.</dd>

<dt>Partitioning your Drive</dt>	<dt>Partitioning your Drive</dt>
<dd>For a LON-CAPA library server (i.e., the main server used	<dd>For a LON-CAPA library server (i.e., the main server used
for permanent storage of course and user data),	for permanent storage of course and user data),
a separate partition is recommended for /home, as this	a separate partition is recommended for /home, as this
simplifies future upgrades of the operating system.	simplifies future upgrades of the operating system.
If you are adding an additional access server to an	If you are adding an additional access server to an
existing LON-CAPA domain, this does not apply as no	existing LON-CAPA domain, this does not apply as no
permanent data are stored on an access server.	permanent data are stored on an access server.
As LON-CAPA resource files are stored in the /home directory,	As LON-CAPA resource files are stored in the /home directory,
the majority of the disk space should be allocated here.	the majority of the disk space should be allocated here.
If you have 20 GB of space for SLES10, /home should	If you have 20 GB of space for SLES10, /home should
receive at least 10 to 12 gigs. Since MySQL uses the /var	receive at least 10 to 12 gigs. Since MySQL uses the /var
filesystem to store its databases you should have as least	filesystem to store its databases you should have as least
4 gigs of space available on /var. Be sure to	4 gigs of space available on /var. Be sure to
include adequate swap space. A minimum is 512 Megs, but you should	include adequate swap space. A minimum is 512 Megs, but you should
typically have 1 or 2x as much swap space as you do physical RAM.	typically have 1 or 2x as much swap space as you do physical RAM.
</dd>	</dd>
<dt>Software Selection</dt>	<dt>Software Selection</dt>
<dd>	<dd>
Installation of the minimum set of packages is recommended. This will involve unchecking all checkboxes except for the base SuSE installation.</dd>	Installation of the minimum set of packages is recommended. This will involve unchecking all checkboxes except for the base SuSE installation.</dd>
</dl>	</dl>
<p>Once you system has rebooted, you will use yast to complete the configuration. Change the following settings:	<p>Once you system has rebooted, you will use yast to complete the configuration. Change the following settings:
Line 94 There are a few steps that require comme	Line 95 There are a few steps that require comme
</dd>	</dd>
<dt>Online update</dt>	<dt>Online update</dt>
<dd>Indicate "Yes" when prompted to "run online update now?"</dd>	<dd>Indicate "Yes" when prompted to "run online update now?"</dd>
</dt>
</dl>	</dl>
<p>	<p>
Finish installing your server, read the "readme", reboot and log in as root.	Finish installing your server, read the "readme", reboot and log in as root.
</p>	</p>
<h2>Configure Firewall Settings</h2>	<h3>Configure Firewall Settings</h3>
<p>After reboot you should start yast, and select Security and Users -> Firewall. At step 2 include the following services: HTTP, HTTP with SSL, and Secure Shell. Use the "Expert..." option to add additional TCP services on ports 5663 and 8080.	<p>After reboot you should start yast, and select Security and Users -> Firewall. At step 2 include the following services: HTTP, HTTP with SSL, and Secure Shell.
</p>	</p>
<h2>Change software sources for your system</h2>
	<h2>4. <a name="upd">Change software sources for your system</a></h2>
<p>	<p>
You will use yast to import packages required for LON-CAPA.<br />	You will use yast to import packages required for LON-CAPA.<br>
Execute:	Execute:
</p>	</p>
<pre>	<pre>
Line 119 cp -rv /mnt/* sles10/CD1	Line 120 cp -rv /mnt/* sles10/CD1
umount /mnt	umount /mnt
</pre>	</pre>
<p>	<p>
Repeat those steps with CD2, CD3 and CD4.</p>	Repeat those steps with CD2, CD3 and CD4.
	</p>
<h3>Add an additional installation source</h3>	<h3>Add an additional installation source</h3>
<p>Add the LON-CAPA SLES 10 repository as an additional installation source, so software installation in yast will have access to at least two repositories - a SuSE/Novell source (for packages included for the standard distribution) and the LON-CAPA repository (for extra packages needed to run LON-CAPA). For the LON-CAPA source you will use:	<p>
	Add the LON-CAPA SLES 10 repository as an additional installation source, so software installation in yast will have access to at least two repositories - a SuSE/Novell source (for packages included for the standard distribution) and the LON-CAPA repository (for extra packages needed to run LON-CAPA). For the LON-CAPA source you will use:
	</p>
<dl style="list-style:square outside none">	<dl style="list-style:square outside none">
<dd>Protocol</dd>	<dd>Protocol</dd>
<dt>HTTP</dt>	<dt>HTTP</dt>
Line 132 Repeat those steps with CD2, CD3 and CD4	Line 136 Repeat those steps with CD2, CD3 and CD4
<dd>Authentication</dd>	<dd>Authentication</dd>
<dt>Anonymous</dt>	<dt>Anonymous</dt>
</dl>	</dl>
After saving this configuration information for the LON-CAPA repository, quit yast.	<p>
	After saving this configuration information for the LON-CAPA repository, quit yast.
</p>	</p>

	<h2>5. <a name="ilc">Installing LON-CAPA</a></h2>
<h3>Install prerequisites</h3>	<h3>Install prerequisites</h3>
<p> Execute: </p>	<p> Execute: </p>
<pre>	<pre>
yast -i LONCAPA-prerequisites	yast -i LONCAPA-prerequisites
</pre><p>	</pre><p>
This may take a moment due to LON-CAPA's large number of dependencies.	This may take some minutes due to LON-CAPA's large number of dependencies.
</p>	</p>
<h3>Retrieve and execute LON-CAPA setup program</h3>	<h3>Retrieve and execute LON-CAPA setup program</h3>
<p>	<p>
Retrieve the LON-CAPA setup with one of the following commands:	Retrieve the LON-CAPA setup with one of the following commands:
</p>	</p>
<pre>	<pre>
wget http://install.loncapa.org/versions/suse/sles10/sles10_install.tar	wget http://install.loncapa.org/linux/install.tar
</pre>	</pre>
<p>	<p>
Extract the archive with the following command:	Extract the archive with the following command:
</p>	</p>
<pre>	<pre>
tar xf sles10_install.tar	tar xf install.tar
</pre>	</pre>
<p>	<p>
This creates a directory named <tt>installation</tt>. Change to it and	This creates a directory named <tt>installation</tt>. Change to it and
Line 163 cd installation	Line 170 cd installation
./install.pl	./install.pl
</pre>	</pre>
<p>	<p>
This script will prompt you for the MySQL root password and will download the latest LON-CAPA release.	The script is used to prepare a Linux system to run LON-CAPA, and can also be
	used to check the configuration of a system on which LON-CAPA has already been installed. Typically, though, you will run this script only once, when you first install LON-CAPA.
	</p>
	<p>
	The script will analyze your system to determine which actions are recommended. The script will then prompt you to choose the actions you would like taken.
	Once a choice has been entered for all nine possible actions, required changes will be made.
</p>	</p>
	<p>The possible actions are:
	<ul>
	<li>Create the www user/group</li>
	<li>Install the package LON-CAPA uses to authenticate users.</li>
	<li>Set-up the MySQL database</li>
	<li>Set-up MySQL permissions</li>
	<li>Configure Apache web server</li>
	<li>Configure start-up of services</li>
	<li>Check firewall settings</li>
	<li>Stop services not used by LON-CAPA,<br>
	e.g., services for a print server: cups daemon</li>
	<li>Download LON-CAPA source code in readiness for installation</li>
	</ul>
	</p>

<h3>Determine LON-CAPA Settings</h3>	<h3>Determine LON-CAPA Settings</h3>
<p>	<p>
LON-CAPA requires a number of identifying parameters to be set in order	LON-CAPA requires a number of identifying parameters to be set in order
Line 175 for it to function at all. Below is a l	Line 202 for it to function at all. Below is a l
<dd>The server must be designated a 'library' or an 'access' server. In	<dd>The server must be designated a 'library' or an 'access' server. In
general you should have a library server for your instructors to create	general you should have a library server for your instructors to create
their course content on and run their courses. Students should connect	their course content on and run their courses. Students should connect
to access servers. If you are doing the first install of LON-CAPA at	to access servers. If you are doing the first install of LON-CAPA at
your site, or if you are playing with it for your own edification you	your site, or if you are playing with it for your own edification you
should make your machine a 'library' server.</dd>	should make your machine a 'library' server.</dd>
<dt>LON-CAPA domain</dt>	<dt>LON-CAPA domain</dt>
<dd>Each site or school which installs LON-CAPA needs its own domain.	<dd>Each site or school which installs LON-CAPA needs its own domain.
Here at MSU we use 'msu'. You should choose something short but	Here at MSU we use 'msu'. You should choose something short but
meaningful. <i>Restriction: One word, no hyphens, underscores, or	meaningful. <i>Restriction: One word, no hyphens, underscores, or
special characters.</i>	special characters.</i>
</dd>	</dd>
<dt>LON-CAPA host id</dt>	<dt>LON-CAPA host id</dt>
<dd>Each LON-CAPA server requires a unique internal name. We use names	<dd>Each LON-CAPA server requires a unique internal name. We use names
such as "msul1" for the first library server. <i>Restriction: One word,	such as "msul1" for the first library server. <i>Restriction: One word,
no hyphens, underscores, or special characters.</i>	no hyphens, underscores, or special characters.</i>
</dd>	</dd>
<dt>Host administrator email</dt>	<dt>Host administrator email</dt>
<dd>The amount of email sent to this address is relatively minimal. Messages	<dd>The amount of email sent to this address is relatively minimal. Messages
are sent every time the system starts up, or if the system is in	are sent every time the system starts up, or if the system is in
serious trouble. On a laptop, make this <tt>root@localhost</tt>.	serious trouble. On a laptop, make this <tt>root@localhost</tt>.
</dd>	</dd>
</dl>	</dl>
Line 201 for it to function at all. Below is a l	Line 228 for it to function at all. Below is a l
To configure and install LON-CAPA, execute the following commands:	To configure and install LON-CAPA, execute the following commands:
</p>	</p>
<pre>	<pre>
cd /root/loncapa-N.N.N (N.N.N should correspond to a version number like '2.2.2')	cd /root/loncapa-X.Y.Z (X.Y.Z should correspond to a version number like '2.10.0')
./UPDATE	./UPDATE
</pre>	</pre>
<p>	<p>
You will need to enter the LON-CAPA configuration information you determined	You will need to enter the LON-CAPA configuration information you determined
in the previous section.	in the previous section.
</p>	</p>
<p>After installing LON-CAPA, and taking any actions included in the WARNINGS file created during installation, it is recommended that you set loncontrol to start automatically on boot, by executing the following command:</p>	<p>After installing LON-CAPA, and taking any actions included in the WARNINGS file created during installation, it is recommended that you set loncontrol to start automatically on boot, by executing the following command:</p>
<pre>	<pre>
/sbin/chkconfig --level 345 loncontrol on	/sbin/chkconfig --level 35 loncontrol on
</pre>	</pre>
<h2>Creating a Domain Coordinator</h2>
	<h2>6. <a name="cdc">Creating a Domain Coordinator</a></h2>
<p>	<p>
You will need at least one user at your site who has the role of	You will need at least one user at your site who has the role of
'domain coordinator'. This user creates accounts for other users and	'domain coordinator'. This user creates accounts for other users and
grants them additional privileges. The make_domain_coordinator.pl script	grants them additional privileges. The make_domain_coordinator.pl script
invoked below requires that you enter the users password. The password will	invoked below requires that you enter the user's password.
show in plaintext as you type it. Feel free to use the "passwd username"	Feel free to use the "passwd username" command to change it later.
command to change it later. Replace USERNAME and DOMAIN with an	Replace USERNAME and DOMAIN with an appropriate user name and your domain.
appropriate user name and your domain.
</p>	</p>
<pre>	<pre>
cd /root/loncapa-N.N/loncom/build	cd /root/loncapa-X.Y.Z/loncom/build
perl make_domain_coordinator.pl USERNAME DOMAIN	perl make_domain_coordinator.pl USERNAME DOMAIN
(WILL PROMPT FOR PASSWORD HERE)
</pre>	</pre>
<h2>Start/Restart Services</h2>
	<h2>7. <a name="sts">Start/Restart Services</a></h2>
<p>	<p>
The LON-CAPA network services take a moment to start. Most misconfigurations	The LON-CAPA network services take a moment to start. Most misconfigurations
will be apparent at this step.	will be apparent at this step.
Line 238 will be apparent at this step.	Line 265 will be apparent at this step.
</pre>	</pre>
<p>	<p>
If you receive warnings when starting the httpd about missing perl modules,	If you receive warnings when starting the httpd about missing perl modules,
please make sure you followed the instructions in	please make sure you followed the instructions in
<b>Installing LON-CAPA Dependencies</b>. If you still have errors, please	<b>Installing LON-CAPA Dependencies</b>. If you still have errors, please
contact the LON-CAPA group.	contact the LON-CAPA group.
</p>	</p>
<h2>Log in to your LON-CAPA Machine</h2>
	<h2>8. <a name="log">Log in to your LON-CAPA Machine</a></h2>
<p>	<p>
Point a web browser at your new machine and log in as the domain	Point a web browser at your new machine and log in as the domain
coordinator. Congratulations!	coordinator. Congratulations!
</p>	</p>

	<hr>
<h2>If things aren't working right</h2>	<h2>If things aren't working right</h2>
<p>	<p>
If you've followed the steps above and the server doesn't start or you think	If you've followed the steps above and the server doesn't start or you think
there's something wrong, please get in touch with the LON-CAPA group.	there's something wrong, please get in touch with the LON-CAPA group.
You can submit a help request using our web form:<br />	You can submit a help request using our web form:<br>
<a href="http://help.loncapa.org/help/">http://help.loncapa.org/help/</a><br />	<a href="http://help.loncapa.org/help/">http://help.loncapa.org/help/</a><br>
If there were errors in installation of the dependency RPMs or during the	If there were errors in installation of the dependency RPMs or during the
automatic setup, please send us as much information as possible.	automatic setup, please send us as much information as possible.
If some part of this document is unclear please let us know.	If some part of this document is unclear please let us know.

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