NLog.config

<?xml version="1.0" encoding="utf-8" ?>
<nlog xmlns="http://www.nlog-project.org/schemas/NLog.xsd"
      xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
      autoReload="true"
      internalLogLevel="Warn"
      internalLogFile="App_Data/logs/internal-nlog.txt">

  <extensions>
    <add assembly="NLog.Web.AspNetCore"/>
    <add assembly="OrchardCore.Logging.NLog"/>
  </extensions>

  <targets>
    <!-- file target -->
    <target xsi:type="File" name="file"
            fileName="${var:configDir}/App_Data/logs/orchard-log-${shortdate}.log"
            layout="${longdate}|${orchard-tenant-name}|${aspnet-traceidentifier}|${event-properties:item=EventId.Id}|${logger}|${uppercase:${level}}|${message} ${exception:format=ToString,StackTrace}"
    />

    <!-- console target -->
    <target xsi:type="Console" name="console" />

  </targets>

  <rules>
    <!-- all warnings and above go to the file target -->
    <logger name="*" minlevel="Warn" writeTo="file" />

    <!-- the hosting lifetime events go to the console -->
    <logger name="Microsoft.Hosting.Lifetime" minlevel="Info" writeTo="console" />
  </rules>
</nlog>