Annotation of doc/build/sles15_install.frag, revision 1.1
1.1 ! raeburn 1: <h1>Installing LON-CAPA on a minimal SuSE Linux Enterprise Server (SLES) 15</h1>
! 2: <p>
! 3: This document guides you through the process of setting up a new LON-CAPA
! 4: server running SuSE Linux Enterprise Server 15 (SLES 15) with a minimum of packages installed.
! 5: The computer will be configured solely as a LON-CAPA server and will be
! 6: expected to have no other services running. Your server is expected to have
! 7: a reasonably fast connection to the internet.
! 8: </p><p>
! 9: More information is available at
! 10: <a href="http://install.lon-capa.org/">http://install.lon-capa.org/</a>.
! 11: </p>
! 12:
! 13: <h2>Before you begin</h2>
! 14: <p>
! 15: Installing Linux is straightforward.
! 16: You will be required to log in to the machine and execute
! 17: some routine Unix commands. Familiarity with the Apache web server, mod_perl,
! 18: perl, and MySQL are not required to install and run LON-CAPA.
! 19: </p>
! 20:
! 21: <h2>Installation Overview</h2>
! 22: <p>
! 23: The installation process takes the following steps:
! 24: </p>
! 25: <ol>
! 26: <li><a href="#obt">Obtain SLES 15 installation media</a></li>
! 27: <li><a href="#net">Determine Network Settings</a></li>
! 28: <li><a href="#lin">Install SLES 15</a></li>
! 29: <li><a href="#upd">Update your system</a></li>
! 30: <li><a href="#ilc">Install LON-CAPA</a></li>
! 31: <li><a href="#cdc">Create a Domain Coordinator</a></li>
! 32: <li><a href="#sts">Start/Restart services</a></li>
! 33: <li><a href="#log">Log in to LON-CAPA</a></li>
! 34: </ol>
! 35:
! 36: <hr>
! 37: <h2>1. <a name="obt">Obtain SuSE Linux Enterprise Server 15</a></h2>
! 38: <p>
! 39: SLES15 ISO files can be obtained from the SuSE site: <a href="https://www.suse.com/download-linux/">https://www.suse.com/download-linux/</a>. Download the SLE-15-SP1-Installer-DVD-x86_64-GM-DVD1.iso.
! 40: </p>
! 41:
! 42: <h2>2. <a name="net">Determine Network Settings</a></h2>
! 43: <p>
! 44: You will need to know the following network settings for your installation.
! 45: <b>Note:</b>You must have a static IP address to use LON-CAPA.
! 46: DHCP is <em>not</em> supported.
! 47: </p>
! 48: <ul>
! 49: <li>ip address </li>
! 50: <li>netmask </li>
! 51: <li>hostname </li>
! 52: <li>gateway </li>
! 53: <li>domain name server(s) </li>
! 54: </ul>
! 55:
! 56: <h2>3. <a name="lin">Minimal SLES 15 Install</a></h2>
! 57: <p>
! 58: Installing SuSE Linux Enterprise Server is straightforward.
! 59: Some documentation is available from
! 60: <a href="https://documentation.suse.com/sles/15-SP1/pdf/art-sle-installquick_color_en.pdf">
! 61: https://documentation.suse.com/sles/15-SP1/pdf/art-sle-installquick_color_en.pdf</a>.<br /><br />
! 62: Most of the installation screens are self explanatory.
! 63: There are a few steps that require comment and are dealt with below.
! 64: </p>
! 65: <dl style="list-style:square outside none">
! 66: <dt>Installation Language</dt>
! 67: <dd>Use English as your installation language.</dd>
! 68: <dt>Partitioning your Drive</dt>
! 69: <dd>For a LON-CAPA library server (i.e., the main server used
! 70: for permanent storage of course and user data),
! 71: a separate partition is recommended for /home, as this
! 72: simplifies future upgrades of the operating system.
! 73: If you are adding an additional access server to an
! 74: existing LON-CAPA domain, this does not apply as no
! 75: permanent data are stored on an access server.
! 76: As LON-CAPA resource files are stored in the /home directory,
! 77: the majority of the disk space should be allocated here.
! 78: If you have 20 GB of space for SLES15, /home should
! 79: receive at least 10 to 12 GB. Since MySQL uses the /var
! 80: filesystem to store its databases you should have as least
! 81: 4 gigs of space available on /var. Be sure to
! 82: include adequate swap space. A minimum is 512 MB, but you should
! 83: typically have 1 or 2x as much swap space as you do physical RAM.
! 84: </dd>
! 85: <dt>Network Configuration</dt>
! 86: <dd>LON-CAPA will <b>not</b> work with a machine set up to use a dynamic
! 87: IP address. When configuring your network card, you should include you static IP address, netmask, host name information (e.g., host name = tmp1, domain = lite.msu.edu), as well as name servers and gateway.
! 88: </dd>
! 89: <dt>Available Extensions and Modules</dt>
! 90: <dd>Check the boxes for the following:<ul>
! 91: <li>Basesystem Module</li>
! 92: <li>Desktop Applications</li>
! 93: <li>Development Tools</li>
! 94: <li>Server Applications</li>
! 95: </ul>
! 96: </dd>
! 97: <dt>System Role</dt>
! 98: <dd>Select: Minimal</dd>
! 99: <dt>Software Selection</dt>
! 100: <dd>Check the boxes for the following:<ul>
! 101: <li>Help and Support Documentation</li>
! 102: <li>Minimal Base System</li>
! 103: <li>YaST System Administration</li>
! 104: </ul>
! 105: </dd>
! 106: <dt>Security</dt>
! 107: <dd>If you will need command line access other than via the console, click the link to toggle the setting for the SSH port so it will be open,</dd>
! 108: </dl>
! 109: <p>
! 110: Finish installing your server, reboot and log in as root.
! 111: </p>
! 112: <h3>Firewall Configuration</h3>
! 113: <p>
! 114: Execute:
! 115: </p>
! 116: <pre>
! 117: yast
! 118: </pre>
! 119: Use "Security and Users" -> Firewall -> Zones -> public to enable access to standard web server ports for http and https.
! 120: </p>
! 121: <h2>4. <a name="upd">Add software sources</a></h2>
! 122: <p>
! 123: Use zypper to add package repositories for LON-CAPA and the statistics package: R.<br>
! 124: Execute:
! 125: </p>
! 126: <pre>
! 127: zypper addrepo http://install.loncapa.org/suse/sles15/ 'LON-CAPA Updates'
! 128: zypper addrepo https://download.opensuse.org/repositories/devel:languages:R:released/SLE_15_SP1/devel:languages:R:released.repo
! 129: zypper refresh
! 130: </pre>
! 131: <p>
! 132: Verify the required repositories are enabled:
! 133: </p>
! 134: <pre>
! 135: zypper lr -E
! 136: </pre>
! 137: <p>
! 138: The list of enabled repos should be as follows:
! 139: </p>
! 140: <table style="border: 0px; border-collapse: collapse;">
! 141: <tr><th>Alias</th><th>Name</th></tr>
! 142: <tr><td>Basesystem_Module_15_SP1_x86_64:SLE-Module-Basesystem15-SP1-Pool</td><td>SLE-Module-Basesystem15-SP1-Pool</td></tr>
! 143: <tr><td>Basesystem_Module_15_SP1_x86_64:SLE-Module-Basesystem15-SP1-Updates</td><td>SLE-Module-Basesystem15-SP1-Updates</td></tr>
! 144: <tr><td>Desktop_Applications_Module_15_SP1_x86_64:SLE-Module-Desktop-Applications15-SP1-Pool</td><td>SLE-Module-Desktop-Applications15-SP1-Pool</td></tr>
! 145: <tr><td>Desktop_Applications_Module_15_SP1_x86_64:SLE-Module-Desktop-Applications15-SP1-Updates</td><td>SLE-Module-Desktop-Applications15-SP1-Updates</td></tr>
! 146: <tr><td>Development_Tools_Module_15_SP1_x86_64:SLE-Module-DevTools15-SP1-Pool</td><td>SLE-Module-DevTools15-SP1-Pool</td></tr>
! 147: <tr><td>Development_Tools_Module_15_SP1_x86_64:SLE-Module-DevTools15-SP1-Updates</td><td>SLE-Module-DevTools15-SP1-Updates</td></tr>
! 148: <tr><td>LON-CAPA Updates</td><td>LON-CAPA Updates</td></tr>
! 149: <tr><td>SUSE_Linux_Enterprise_Server_15_SP1_x86_64:SLE-Product-SLES15-SP1-Pool</td><td>SLE-Product-SLES15-SP1-Pool</td></tr>
! 150: <tr><td>SUSE_Linux_Enterprise_Server_15_SP1_x86_64:SLE-Product-SLES15-SP1-Updates</td><td>SLE-Product-SLES15-SP1-Updates</td></tr>
! 151: <tr><td>SUSE_Package_Hub_15_SP1_x86_64:SLE-Module-Packagehub-Subpackages15-SP1-Pool</td><td>SLE-Module-Packagehub-Subpackages15-SP1-Pool</td></tr>
! 152: <tr><td>SUSE_Package_Hub_15_SP1_x86_64:SLE-Module-Packagehub-Subpackages15-SP1-Updates</td><td>SLE-Module-Packagehub-Subpackages15-SP1-Updates</td></tr>
! 153: <tr><td>SUSE_Package_Hub_15_SP1_x86_64:SUSE-PackageHub-15-SP1-Backports-Pool</td><td>SUSE-PackageHub-15-SP1-Backports-Pool</td></tr>
! 154: <tr><td>SUSE_Package_Hub_15_SP1_x86_64:SUSE-PackageHub-15-SP1-Pool</td><td>SUSE-PackageHub-15-SP1-Pool</td></tr>
! 155: <tr><td>Server_Applications_Module_15_SP1_x86_64:SLE-Module-Server-Applications15-SP1-Pool</td><td>SLE-Module-Server-Applications15-SP1-Pool</td></tr>
! 156: <tr><td>Server_Applications_Module_15_SP1_x86_64:SLE-Module-Server-Applications15-SP1-Updates</td><td>SLE-Module-Server-Applications15-SP1-Updates</td></tr>
! 157: <tr><td>devel_languages_R_released</td><td>R core components, supplements (like rkward), and CRAN packages (SLE_15_SP1)</td></tr>
! 158: </table>
! 159: <h2>5. <a name="ilc">Installing LON-CAPA</a></h2>
! 160: <h3>Install prerequisites</h3>
! 161: <p> Execute: </p>
! 162: <pre>
! 163: zypper in LONCAPA-prerequisites
! 164: </pre>
! 165: <p>
! 166: This may take some minutes due to LON-CAPA's large number of dependencies.
! 167: </p>
! 168: <h3>Retrieve and execute LON-CAPA setup program</h3>
! 169: <p>
! 170: Retrieve the LON-CAPA setup with one of the following commands:
! 171: </p>
! 172: <pre>
! 173: wget http://install.loncapa.org/linux/install.tar
! 174: </pre>
! 175: <p>
! 176: Extract the archive with the following command:
! 177: </p>
! 178: <pre>
! 179: tar xf install.tar
! 180: </pre>
! 181: <p>
! 182: This creates a directory named <tt>installation</tt>. Change to it and
! 183: execute the setup script with the following commands:
! 184: </p>
! 185: <pre>
! 186: cd installation
! 187: ./install.pl
! 188: </pre>
! 189: <p>
! 190: The script is used to prepare a Linux system to run LON-CAPA, and can also be
! 191: 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.
! 192: </p>
! 193: <p>
! 194: 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.
! 195: Once a choice has been entered for all nine possible actions, required changes will be made.
! 196: </p>
! 197: <p>The possible actions are:
! 198: <ul>
! 199: <li>Create the www user/group</li>
! 200: <li>Install the package LON-CAPA uses to authenticate users.</li>
! 201: <li>Set-up the MySQL database</li>
! 202: <li>Set-up MySQL permissions</li>
! 203: <li>Configure Apache web server</li>
! 204: <li>Configure start-up of services</li>
! 205: <li>Check firewall settings</li>
! 206: <li>Stop services not used by LON-CAPA,<br>
! 207: e.g., services for a print server: cups daemon</li>
! 208: <li>Download LON-CAPA source code in readiness for installation</li>
! 209: </ul>
! 210: </p>
! 211:
! 212: <h3>Determine LON-CAPA Settings</h3>
! 213: <p>
! 214: LON-CAPA requires a number of identifying parameters to be set in order
! 215: for it to function at all. Below is a list with descriptions.
! 216: </p>
! 217: <dl>
! 218: <dt>Host Type (library or access)</dt>
! 219: <dd>The server must be designated a 'library' or an 'access' server. In
! 220: general you should have a library server for your instructors to create
! 221: their course content on and run their courses. Students should connect
! 222: to access servers. If you are doing the first install of LON-CAPA at
! 223: your site, or if you are playing with it for your own edification you
! 224: should make your machine a 'library' server.</dd>
! 225: <dt>LON-CAPA domain</dt>
! 226: <dd>Each site or school which installs LON-CAPA needs its own domain.
! 227: Here at MSU we use 'msu'. You should choose something short but
! 228: meaningful. <i>Restriction: one word. Permitted characters
! 229: (lower case preferred) are letters and numbers and . and - </i>
! 230: </dd>
! 231: <dt>LON-CAPA host id</dt>
! 232: <dd>Each LON-CAPA server requires a unique internal name. We use names
! 233: such as "msul1" for the first library server. <i>Restriction: One word.
! 234: Permitted characters (lower case preferred) are letters and numbers and . and -
! 235: </i>
! 236: </dd>
! 237: <dt>Host administrator email</dt>
! 238: <dd>The amount of email sent to this address is relatively minimal. Messages
! 239: are sent every time the system starts up, or if the system is in
! 240: serious trouble. On a laptop, make this <tt>root@localhost</tt>.
! 241: </dd>
! 242: </dl>
! 243:
! 244: <h3>Configuring LON-CAPA</h3>
! 245: <p>
! 246: To configure and install LON-CAPA, execute the following commands:
! 247: </p>
! 248: <pre>
! 249: cd /root/loncapa-X.Y.Z (X.Y.Z should correspond to a version number like '2.11.3')
! 250: ./UPDATE
! 251: </pre>
! 252: <p>
! 253: You will need to enter the LON-CAPA configuration information you determined
! 254: in the previous section.
! 255: </p>
! 256:
! 257: <h2>6. <a name="cdc">Creating a Domain Coordinator</a></h2>
! 258: <p>
! 259: You will need at least one user at your site who has the role of
! 260: 'domain coordinator'. This user creates accounts for other users and
! 261: grants them additional privileges. The make_domain_coordinator.pl script
! 262: invoked below requires that you enter the user's password.
! 263: Feel free to use the "passwd username" command to change it later.
! 264: Replace USERNAME and DOMAIN with an appropriate user name and your domain.
! 265: </p>
! 266: <pre>
! 267: cd /root/loncapa-X.Y.Z/loncom/build
! 268: perl make_domain_coordinator.pl USERNAME DOMAIN
! 269: </pre>
! 270:
! 271: <h2>7. <a name="sts">Start/Restart Services</a></h2>
! 272: <p>
! 273: The LON-CAPA network services take a moment to start. Most misconfigurations
! 274: will be apparent at this step.
! 275: </p>
! 276: <pre>
! 277: /etc/init.d/loncontrol start
! 278: systemctl start apache2
! 279: </pre>
! 280: <p>
! 281: If you receive warnings when starting apache2 about missing perl modules,
! 282: please make sure you followed the instructions in
! 283: <b>Installing LON-CAPA Dependencies</b>. If you still have errors, please
! 284: contact the LON-CAPA group.
! 285: </p>
! 286:
! 287: <h2>8. <a name="log">Log in to your LON-CAPA Machine</a></h2>
! 288: <p>
! 289: Point a web browser at your new machine and log in as the domain
! 290: coordinator. Congratulations!
! 291: </p>
! 292:
! 293: <hr>
! 294: <h2>If things aren't working right</h2>
! 295: <p>
! 296: If you've followed the steps above and the server doesn't start or you think
! 297: there's something wrong, please get in touch with the LON-CAPA group.
! 298: You can submit a help request using our web form:<br>
! 299: <a href="http://help.loncapa.org/help/">http://help.loncapa.org/help/</a><br>
! 300: If there were errors in installation of the dependency RPMs or during the
! 301: automatic setup, please send us as much information as possible.
! 302: If some part of this document is unclear please let us know.
! 303: </p>
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