log4net.config

<log4net>
  <appender name="ColoredConsoleAppender" type="log4net.Appender.ManagedColoredConsoleAppender">
    <layout type="log4net.Layout.PatternLayout">
      <conversionPattern value="%date{HH:mm:ss} [%thread] %-5level: %message - %logger{1}%newline" />
    </layout>
    <mapping>
      <level value="FATAL" />
      <foreColor value="Red" />
    </mapping>
    <mapping>
      <level value="ERROR" />
      <foreColor value="Red" />
    </mapping>
    <mapping>
      <level value="WARN" />
      <foreColor value="Yellow" />
    </mapping>
    <mapping>
      <level value="INFO" />
      <foreColor value="White" />
    </mapping>
    <mapping>
      <level value="DEBUG" />
      <foreColor value="DarkGray" />
    </mapping>
  </appender>

  <appender name="RollingLogFileAppender" type="log4net.Appender.RollingFileAppender">
    <file value="${ProgramData}\SampleWebApp.log" />
    <encoding value="utf-8" />
    <appendToFile value="false" />
    <rollingStyle value="Size" />
    <maxSizeRollBackups value="5" />
    <maximumFileSize value="5MB" />
    <layout type="log4net.Layout.PatternLayout">
      <conversionPattern value="%date [%thread] %-5level %logger - %message%newline%exception" />
    </layout>
  </appender>

  <logger name="System">
    <level value="INFO"></level>
  </logger>

  <logger name="Microsoft">
    <level value="INFO"></level>
  </logger>


  <root>
    <level value="TRACE" />
    <appender-ref ref="RollingLogFileAppender" />
    <appender-ref ref="ColoredConsoleAppender" />
  </root>
</log4net>