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! 157:
! 158: <h1><a name="_Toc421867148">Different Types of LON-CAPA Servers</a></h1>
! 159:
! 160: <p><i>Scott Harrison, freeware volunteer, sharrison@sourceforge.net</i><span
! 161: style='font-style:normal'> </span></p>
! 162:
! 163: <h2><a name="_Toc421867149">Introduction</a></h2>
! 164:
! 165: <p>There are two different kinds of LON-CAPA servers, Library Servers and
! 166: Access Servers. On any LON-CAPA machine, you can look at the server type by
! 167: viewing the file <tt><span style='font-family:"Courier New"'>/etc/httpd/conf/loncapa.conf</span></tt>
! 168: and looking at the variable <strong>lonRole</strong>. </p>
! 169:
! 170: <h2><a name="_Toc421867150">Library Servers</a></h2>
! 171:
! 172: <p>Library Servers are repositories of authoritative educational resources.
! 173: These servers also provide the construction space by which instructors assemble
! 174: their classroom online material. First-time installations of LON-CAPA at an
! 175: institution should be for Library Servers (and not Access Servers). </p>
! 176:
! 177: <p>Only Library Servers make use of a MySQL database. </p>
! 178:
! 179: <p>On the filesystem, the following directories are used primarily by Library
! 180: Servers (and not Access Servers): </p>
! 181:
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! 184: mso-list:l0 level1 lfo1;tab-stops:list .5in'><tt><span style='font-family:
! 185: "Courier New"'>/home/USERNAME/</span></tt> - authors are standard Linux
! 186: users that exist on Library Servers </li>
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! 188: mso-list:l0 level1 lfo1;tab-stops:list .5in'><tt><span style='font-family:
! 189: "Courier New"'>/home/httpd/lonUsers/</span></tt> - user profile
! 190: information is stored inside Library Servers </li>
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! 193: "Courier New"'>/home/httpd/html/res/</span></tt></li>
! 194: </ul>
! 195:
! 196: <p class=MsoNormal style='margin-left:.5in'>- Library Servers use this space to
! 197: hold authoritative or cached versions of educational resources; Access Servers
! 198: only use this space to hold cached versions of educational resources </p>
! 199:
! 200: <h2><a name="_Toc421867151">Access Servers</a></h2>
! 201:
! 202: <p>Access Servers load-balance high-traffic delivery of educational resources
! 203: over the world-wide web. Access Servers do not require a MySQL database and do
! 204: not contain Linux user accounts. Several of the active directories on Library
! 205: Servers are not needed on an Access Servers. </p>
! 206:
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