Three-tier .NET Application Utilizing Three ORM Technologies

<?xml version="1.0" encoding="utf-8" ?>
<configuration>
  <!-- Configuration Sections In This File -->
  <configSections>

    <!-- Log4Net Section -->
    <section
        name="log4net"
        type="log4net.Config.Log4NetConfigurationSectionHandler, log4net"
        />

  </configSections>

  <!-- Log4Net Configuration -->
  <log4net>

    <!-- Define an output appender (where the logs can go) -->
    <appender name="LogFileAppender" type="log4net.Appender.FileAppender, log4net">
      <param name="File" value="log.txt" />
      <param name="AppendToFile" value="true" />
      <layout type="log4net.Layout.PatternLayout, log4net">
        <param name="ConversionPattern" value="%d [%t] %-5p %c [%x] &lt;%X{auth}&gt; - %m%n" />
      </layout>
    </appender>

    <!-- Note: Priority level can be ALL/DEBUG/INFO/WARN/ERROR/FATAL/OFF -->
    <!-- Setup the root category, set the default priority level and add the appender(s) (where the logs will go) -->
    <root>
      <priority value="WARN" />
      <appender-ref ref="LogFileAppender" />
    </root>
  </log4net>

  <appSettings file="LEKSettings.config">
  </appSettings>
</configuration>